This is the generic class for processes and apparatus for dispensing material, and takes all such subject matter that must be classified on such basis and not provided for in other main classes.
This class is not limited as to the character of the materials dispensed which may be in any physical state, i.e., it may be in a gas, vapor, liquid, viscous, paste-like or solid state and if in a self sustaining state may have any form or shape.

LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
Dispensers are found in all classes dealing with the manufacture, treatment or handling of fluent materials, and particularly in classes having feeding or material handling subclasses. In general, the assignment of patents to the manufacturing and material treating classes has been on the basis of the non-dispensing operation, when the means or steps for performing the nondispensing operation are claimed. When the means or steps for performing the nondispensing operation are not claimed, assignment has been to the class taking the disclosed operation when material feeding subclasses occur in such art class and are designated and defined to receive such patents. Classes not having special subclasses of this type will not take devices falling in the scope of Class 222, when not claimed in combination with, or especially adapted for the machines or work of the art class, unless such class has a large body of art on dispensing, per se.
Patents having claims to a dispenser classifiable in this
class, and also claims to a method of, or apparatus for, making such dispenser, are classified in this class, in the subclass appropriate to the dispenser claimed and cross-referenced to the appropriate manufacturing class.
GAS OR VAPOR DISPENSERS:
Dispensing of material in a gas or vapor state is provided for in subclasses 3+. These subclasses were formed on the basis of apparatus disclosed solely for dispensing a gas or vapor as the proximate purpose of the apparatus and have, in subclass 4, the combination of such dispensing means with means to additionally dispense materials other than gases or vapors.
Many devices in this class use gas, vapor, or liquid materials to contact other materials to cause dispensing of such other materials, or to operate motors or followers to cause dispensing of other materials, and some devices in this class utilize gas or vapor to agitate another material while the latter is being dispensed. Such combinations are not in subclasses 3+, but are in other following subclasses appropriate to the invention claimed. Since most of these devices involve the movement of gases or vapors from one place to another in the organization, significant gas dispensing apparatus is often disclosed and claimed as a part of the liquid or solid dispensing combination. Where the combination is claimed the gas dispensing subcombination is cross-referenced to subclasses 3+. It is classified as an original in subclasses 3+ when the gas or vapor dispensing subcombination only is claimed.
Most dispensers have vents for the chambers from which materials are dispensed, either to permit escape of gas or vapor as the chamber fills or to admit the same as the chamber empties. Vents were not classified in this class as dispensers.
For the various combinations within the class having a vent, or which utilize a gas, vapor, or liquid in various combinations as above set forth, see the notes to subclass 3.
For gas or vapor dispensers, per se, and for various combinations having such subject matter as a part thereof provided for in other classes see the Search Class notes in References to Other Classes, below, referencing this section.
ARTICLE DISPENSING:
Article dispensers are classified in Class 221, Article Dispensing and the definitions and Notes to that class should be consulted for the statements of the lines of that class with this class and with other related article dispensing and feeding classes, including strip feeding.
Dispensers capable of use with either articles or fluent material of granular, plastic or liquid nature, and claimed generically are classified in Class 222, that class being generic to the concept of the two classes (221 and 222).
VOLUME OR RATE OF FLOW METERS, RECORDERS, REGISTERS
This class has volume or rate of flow meters combined with means for predetermining the total quantity dispensed in subclasses 14+; volume or rate of flow meters combined with signals, indicators, registers or recorders specialized for use with repeated dispensing operations, as registers with zero-setting or price and volume indicating combinations in subclasses 23+; volume or rate of flow meters combined with structure (in addition to that necessary for an operative volume or rate of flow meter) limited to dispensing in subclasses 52-73.
The dispensing features, in addition to meter structure, which, in general, determine classification in Class 222, are (1) meters having predetermined or preset cut-offs, (2) meters of the expansible chamber type having ingress or egress valves which are manually thrown, (3) meters having manual flow termination, (4) meters combined with storage tank features where the stored material is dispensed through the meter, (5) meters with nozzles, spouts, or equivalent dispensing outlets, and (6) meters combined with a pump significantly claimed.
For related subject matter, see References to Other Classes below, that reference this section.
DRIP LEAKAGE OR WASTE CATCHERS
Devices auxiliary to dispensing organizations for catching drip or waste material are in this class, including receivers or supports for receivers to be placed to collect material overflowing or not received by the intended receiver and also other material escaping from the desired discharge path.
For such devices, see subclasses 108+, and for related art see References to Other Classes, referencing this section.
COMBINATIONS OF DISPENSER AND INDEPENDENT RECEIVER
Dispensers under the class definition claimed in combination with either (1) a container or other receiver which is independent of the dispenser organization, i.e., such receiver not being a part of the means necessary to the dispensing operation, or (2) means which perform their function only in connection with such independent receiver.
The combination defined above is common to all apparatus for performing any character of operation on material, from those combinations in which the independent receiver is a mere receptacle to which the dispenser delivers material for filling purposes, to those combinations in which the receiver
is a complicated manufacturing or treating apparatus and the dispenser is a feeding device to deliver material to such manufacturing or treating apparatus for operation thereon. Therefore, the great bulk of the patents granted on such combinations will be found in other classes classified on the basis of particular adaptation to deliver to receivers of particular kinds, or on the basis of the particular receiver (including manufacturing or treating apparatus) claimed.
Where the receiver is defined in such broad terms as to fail as a basis of classification (i.e., in broad terms, cover receivers of two or more types separately classified), it is classified in this class, or other classification appropriate to the dispenser claimed.
Since the above subject matter occurs primarily in other classes, classification is in this class only when no other class provides for such subject matter. For notes on gas dispensing, see GAS OR VAPOR DISPENSERS above. The Search Class notes below that reference this section do not attempt to be exhaustive, specifying only those classes that are known to have apparatus closely resembling the apparatus in this class.
Relative to the cleaning of dispensers: Classes 15 and 134 take cleaning devices of the types provided for in those classes, per se, or in combination with dispensers or fluid flow systems which are so broadly recited as to appear to constitute parts of the cleaning means rather than the articles to be cleaned. Specific dispenser or fluent material handling structures, including such details as to give a basis for classification in Class 222 or in Class 137, combined with means for cleaning such dispensing or handling structures are classified in Class 222, in subclasses 148+, or in Class 137, in subclasses 237+. (Combinations of Dispenser and Independent Receiver)
Some liquid cleaning subcombinations involve no more than dispensing a cleaning fluid to the article to be cleaned (as a receiver). Class 137 and Class 222 take such devices as fluent material handling or dispensing inventions, but where a cleaning feature (as dissolving of a cleansing material, surging of the cleaning fluid, etc.) is present, classification is in Class 134, in appropriate subclass subclasses thereof. Also see the Search Class note below to Class 15 referencing this section.
PUMPS
This class has pumps in various combinations with dispensing features. Dispensing features combined with pumps are:
A. Selectively preset volume responsive cutoff means to control the quantity discharged (e.g., those which can be preset to operate through a desired number of cycles), see subclasses 14+.
B. Totalizing or other registering means, or recording means, the combination being specialized for repeated operations (as those provided with zero-setting means or combined price and volume devices) see subclasses 23+.
C. Position or extent of motion indicators, when other dispensing features are claimed (e.g., as set forth in (d), (e), and (f) see subclasses 41+.
D. Measuring means in addition to the pump, see subclasses 23+ and 71+.
E. The combination between a pump and a significantly claimed container which forms the source of supply for the pump. A supply container is considered to be significantly claimed when any one or any combination of the following are recited: (1) the structural features of the container; (2) the mounting of the pump on a container closure, (3) particular relationships between the pump or its controls and the container, see appropriate subclasses such as 252+ and 372+.
F. The provision of means in addition to pump structure and its operator to prevent the start of intake before the pump has reached the end of its discharge operation, see for example, subclass 34.
G. Discharge outlet (e.g., nozzle) features significantly claimed, see for example, subclasses 74, 320, 322, 330, 378, and 379.
For the most part, the notes on dispensers and combinations of dispensers with other things, in which a pump is part of the dispenser organization, are placed in Lines With Other Classes and Within This Class, in this Class Definiton.
For pump structure, and for means to operate and control the same, including means to vary the pump capacity both with or without an indicator see the Search Class notes below in References to Other Classes. In particular, see Classes 137, 366, 406, 417, and 418.
DISCHARGE ASSISTANTS: (E.G., IMPELLERS, PUMPS, CONVEYORS, MOVABLE TRAP CHAMBERS, ETC.)
Devices combined with containers, or specially adapted for use with containers, and comprising means acting in addition to, or against, gravity for either removing material from a container, or which move, or tend to cause material to move, to or through a container outlet, have been herein designated generically "discharge assistants."
The discharge assistants as above comprise any means in either fluid or solid form, which moves or tends to urge material to move toward a discharge outlet or into or out of a trap chamber. Included are means to apply pressure fluids directly to the material to cause material motion, jarring, or vibrating means, pumps, pulsators, impellers, pushers,
ejectors, vanes, rolls, screws, mechanical and fluid current conveyors of all kinds, followers (including followers moved only be atmospheric pressure), agitators functioning primarily to cause discharge, and devices for breaking material bridges or arches.
Movable trap chambers are devices which, when moved to one position, receive material from a supply and, when moved to another position, discharge the trapped material. These may act against or with gravity, sometimes offering no assistance to discharge except the physical separation of a portion of the material, and its confinement and control during downward movement, but they were found so closely related to nongravity discharge assistants as to cause it to be advisable to associate the two in the classification (e.g., many movable trap chambers were, in addition, mechanical conveyors).
The above character subject matter occur in numerous subclasses throughout the class, attention being particularly called to subclasses 92+ and 193 through 415, in which subclasses the discharge assistant constitutes the primary basis of classification.
Since, in most classes, dispensers and combinations thereof with other things are not separated on the basis of whether or not they have discharge assistants, notes on this type are not separately set out, and the notes to Lines With Other Classes and Within This Class, Pumps, should be consulted.
STATIONARY TRAPS:
Stationary material trapping devices auxiliary to a bulk supply are included in the class more particularly as follows: (1) containers having means for separating from the contained material a quantity less than the whole and maintaining the same in a position for access thereto by some removing agency; these may be barometric in type, or a mere wall or well to reduce the area of material exposed in the main container (e.g., dispensing inkwells); (2) containers having receptacles or funnels for receiving or guiding the container contents, which are carried by, or form part of, the container and must be separated therefrom before use; (3) containers having detachable auxiliary chambers which receive part of the container contents while in place on the container, but which must be separated for discharge; (4) containers having auxiliary chambers which receive part of the container contents and discharge the same through tilting of the entire organization and which are provided with passages and baffles arranged to prevent additional material from entering the trap while the container is tilted; (5) containers having serial alternately opened valves so related as to perform a measuring function, the so-called predetermined-bulk stationary trap, and subcombinations disclosed as continuously connected to a source of supply.
These devices are related to the movable trap chambers and
other discharge assistants treated inthe section "Discharge Assistants" above.
Attention is particularly called to subclasses 424.5 through 457, and other subclasses, specified in the notes thereto, for this type of subject matter.
PATTERN OR SIFTER FORM OUTLET AND WITH MATERIAL SEPARATOR:
This class includes the combination of a dispenser with means to sift, strain, or filter the material dispensed as an incident to the dispensing operation (see subclasses 189.01, 189.02+ and 189.06+), and also dispensers having a pattern or sifter form of outlet (see subclasses 480, 564 and 565, and the notes thereto). Relative to sifters, strainers, or filters, combined with a dispenser, this class has this combination when the separating device is incidental to the dispenser, while the appropriate separating class has the separating means with means to deliver material thereto or therefrom. Relative to pattern or sifter forms of outlet, this class has the same where there is no structure specialized to, or intent of, separating, the foraminous nature of the outlet being for the purpose of holding back the bulk of the material while permitting the escape of limited quantities, or assisting to distribute the material delivered.
For related art, see the section "Hand Manipulable Shakers" below, and the Search Class notes referencing that section.
HAND MANIPULABLE SHAKERS:
Hand manipulable shaker type dispensers are those which are adapted to dispense nonfree flowing granular material when it is kept in motion within the container, which is held in the hand and moved to and fro to shift the material. In these dispensers, the outlet is restricted to such an extent that bridging of the material occurs immediately after the material is initially brought into contact with the outlet, usually as a result of tilting the container as for gravity flow. Dispensing occurs only as a result of repeated contacts or impacts of the bulk of the material against the outlet area, as in the use of the ordinary condiment holder or salt shaker. If a discharge assistant or agitator is present, it is inertia operated only, having no actuator connected thereto.
Special provision for this subject matter is made in this class under the title Hand Manipulable Shaker Type in the following instances; subclasses 142.1+, for those having plural sources of supply, e.g., combined salt and pepper shakers; 196.1+, for those having an inertia operated movable member which jars or has an impact effect, although it may also serve as a closure or discharge controller or as a discharge assistant; 457.5 for those having a generally U-shaped path through which material is shaken; and 480, for those having multiple diverse type outlet openings. Hand
manipulable shakers having manually operated discharge assistants having been classified in the dispenser subclass appropriate to the type.
Where the outlet is of pattern form, distribution of the dispensed material is also effected. For pattern or sifter type dispensing outlets, see the section on "Pattern Or Sifter Form Outlet And With Material Separator" above, and the search notes below referencing that section.
For hand manipulable devices having material agitating or comminuting features see the References to Other Classes below, that reference this section.
DIPPING AND SAMPLING:
This class has dipping type dispensers and dispensers related to samplers, see subclasses 576+ and 356+ and the notes to other subclasses in Class 222 for such art. For related art in other classes, see the search notes in References to Other Classes, below, that reference this section.
SHAPING MATERIAL BY EXTRUSION:
Where the outlet of a dispenser has a particular shape, so that the operation of the dispenser causes a plastic material to be delivered having a desired shape, classification is in the class appropriate to the plastic shaping involved.
See the search notes in References to Other Classes, below, that reference this section.
FURNACE CHARGING AND DISCHARGING:
This class has dispensers, per se, for fuel and other materials which are intended for delivery to furnaces. Where features are claimed that specialize the apparatus to charging or discharging a furnace, classification is in some other class. See References to Other Classes, below, that references this section.
SANDING OR ABRADING
See the search notes in References to Other Classes, below, that reference this section.
See also Pattern or Sifter Form Outlet and With Material Separator and Throwers, Sprayers, Scatterers, and Dusters, and the Search Class references thereto.
THROWERS, SPRAYERS, SCATTERERS, AND DUSTERS.
See the search notes in References to Other Classes, below, that reference this section.
See also Pattern or Sifter Form Outlet and With Material Separator and Sanding or Abrading, and the Search Class notes
thereto.
VEHICLE LOADING AND UNLOADING:
This class has some vehicular dispensers, see subclasses 176+, but has no other characters of vehicle loading and unloading.
PUNCTURING INJECTORS AND OTHER NOZZLES, SPOUTS, AND POURING DEVICES:
The class includes container structures in combination with one or more dispensing outlet structures; with or without other openings (as filling or vent openings), or dispensing outlet structures, per se, and such structures formed to cut or punch other things, or combined with a cutter or punch for forming openings in the receiver of the material dispensed.
Dispensing outlet structures comprise the following features or any combination therebetween: (1) material guide means (as nozzles, spouts, pouring lips, et cetera), i.e., any means specialized to guiding the material being discharged and located either on the interior or exterior of the container or both. Such structure must be in addition to mere container openings with or without surrounding flanges or necks to receive closures. Such guide means may be stationary relative to the container or movably related thereto; (2) nonguiding type outlets with flow controllers (e.g., valves).
Additional openings for nondispensing purposes, such as filling openings and vents, may be included, and also closures (as distinguished from flow controllers) for any opening, means for connecting the various elements together or means for mounting or operating movable parts. Cutter or punch combinations are in subclasses 80+.
Patents claiming only the container in combination with the features above outlined (excepting cutter or punch features) are in this class starting with subclass 476 and including all following subclasses. Such features in combination with other features are in the preceding subclasses, for example, the combination with a casing or support for the dispenser is in subclasses 173+, with discharge assistant in subclasses 251+, with container handle or handgrip in subclasses 465+.
Containers in combination with such features are found in substantially all classes which involve handling of material in bulk, and in substantially all classes which involve container structure, classified on special bases and features in addition to the dispensing features. For such devices for purposes other than dispensing, and for such devices that are for dispensing, but are specialized to particular uses, see below, Restricters, Pipe and Tubular Conduit Structures, and Valves and Valve Actuation, for restricters and valves.
See the search notes in References to Other Classes, below,
that reference this section.
CONTAINER OR RECEPTACLE STRUCTURE
This class does not have receptacle or container structure unless combined with dispensing features. Collapsibility, per se, is considered to be a dispensing feature, relative to structures disclosed as dispensing containers. For receptacles, containers and tubular conduit structures, not involving dispensing features:
See the search notes in References to Other Classes, below, that reference this section.
CLOSURES
Mere closure structures for containers and other devices having openings, not claimed in combination with a nozzle, spout, pouring lip, discharge assistant, or other dispensing feature, and also closures for spouts where no features of spout structure are claimed other than those necessary for the mounting and operation of the closure, are not in Class 222, but in other appropriate classes.
See the search notes in References to Other Classes, below, that reference this section.
RESTRICTERS, PIPE AND TUBULAR CONDUIT STRUCTURES
This class has neither flow restrictors except those in the interior of dispenser supply containers, provided for in subclasses 547 and 564, nor pipe and tubular conduit structures, per se. For such subject matter:
See the search notes in References to Other Classes, below, that reference this section.
VALVES AND VALVE ACTUATION:
This class has both single and plural valves and their actuating means (1) when claimed in combination with a dispenser, (2) when arranged to control inlet from a bulk supply into a trap chamber and discharge of the trapped material from such chamber, and (3) when claimed in combination with receptacle structure so as to control and regulate discharge of the container contents.
For valves and valve actuating means not involving such combinations, see the search notes in References to Other Classes, below.

REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, for such devices having means for dispensing water, disinfectants, and other
materials thereto, and for dispensers specially designed for such purposes, flush tanks for closets being in 353. (Combinations of Dispenser and Independent Receiver)
12, Boot and Shoe Making, for manufacturing apparatus with dispensing means, and dispensers specially designed for use in connection with boot and shoe manufacture, e.g., subclass 41.3, for pliabilizing soles, 79.5, waxing and polishing and 18.2 shoe filling.
15, Brushing, Scrubbing, and General Cleaning, for apparatus operating by brushing, beating, scraping, shaking, wiping, shotting, or use of a squeegee in combination with means to dispense cleaning or other materials to such operating devices. The dispenser subcombination for delivering materials to such instrumentalities so that such instrumentalities may operate thereon are in Class 222 or other appropriate dispenser classification. See Lines With Other Classes and Within This Class, above, "Combinations of Dispenser and Independent Receiver" for cleaning of dispensers. (Combinations of Dispenser and Independent Receiver)
15, Brushing, Scrubbing, and General Cleaning, 300.1 for air blast and/or suction cleaning devices. (Gas or Vapor Dispensers)
15, Brushing, Scrubbing, and General Cleaning, 248.1, for drip cups and shields. (Drip Leakage or Waste Catchers)
15, Brushing, Scrubbing, and General Cleaning, subclass 322 and 415+ for air blast and suction cleaner nozzles. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
19, Textiles: Fiber Preparation, 200 having fiber feeding and cleaning.
19, Textiles: Fiber Preparation, subclass 9 for devices utilizing an air blast to assist in liberation of fibers from plants, and subclass 205 for pneumatic feeding of fibers. (Gas or Vapor Dispensers)
23, Chemistry: Analytical Processes, 293 for physical processes; and subclasses 230+ for analytical and analytical-control processes. (Gas or Vapor Dispensers)
27, Undertaking, subclass 24.1 for embalming injectors. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices
30, Cutlery, subclass 125, for hand manipulable shakers forming the handle of a cutlery implement. (Hand Manipulable Shakers)
30, Cutlery, 324, for spoons. (Dipping and Sampling)
30, Cutlery, 41 for razors combined with means to dispense fluent material such as water or lather, and subclasses 483 for lubricating attachments
33, Geometrical Instruments, see appropriate subclasses for geometrical instruments with means for dispensing fluids operable in connection with the use of the instruments, e.g., 34 for straight line scribers using ink.
33, Geometrical Instruments, subclass 126.4, for sounding type of distance measuring means combined with sampling devices. (Dipping and Sampling)
34, Drying and Gas or Vapor Contact With Solids, subclass 59 for combinations with a rotary scattering member. (Throwers, Sprayers, Scatterers, and Dusters)
34, Drying and Gas or Vapor Contact With Solids, for processes and apparatus for contacting solids with gases or vapors for drying or other purposes. (Gas or Vapor Dispensers)
34, Drying and Gas or Vapor Contact With Solids, subclass 85 for such apparatus combined with means to collect escaping material. (Drip Leakage or Waste Catchers)
34, Drying and Gas or Vapor Contact With Solids, for apparatus having features specially designed for the drying of solid material, or for contacting solid material with gases or vapors for purposes other than mere agitation, and such apparatus combined with feeding and/or discharging means, dispensers, per se, being in Class 222, or other appropriate dispenser classification.
38, Textiles: Ironing or Smoothing, 3, 14+ and 77.1+ for moistening combinations using vapors. (Gas or Vapor Dispensers)
40, Card, Picture, or Sign Exhibiting, subclass 213 for skywriting using smoke or luminous material. (Gas or Vapor Dispensers)
43, Fishing, Trapping, and Vermin Destroying, 125, for vermin destroying fumigators. (Gas or Vapor Dispensers)
47, Plant Husbandry, subclass 11 for sap spouts and gutters for gathering sap from pine and rubber trees, subclass 48.5 for irrigators or fertilizers of container or cartridge form which are buried in the earth, usually discharging their contents over a period of time, 51 and 52+ for spouts for conveying sap from other trees, and 57.5 for miscellaneous injection devices. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
48, Gas: Heating and Illuminating, particularly 174, 180+ and 190+, for gas holding, mixing, and distributing means and methods. (Gas or Vapor Dispensers)
48, Gas: Heating and Illuminating, for apparatus for feeding materials to acetylene generators, other gas generators and other devices specialized to heating and illuminating gases. (Combinations of Dispenser and Independent Receiver)
48, Gas: Heating and Illuminating, 46 for carbid feed devices for delivering measured charges. (Stationary Traps)
48, Gas: Heating and Illuminating, 41 and 45, for dip type carbid feeders for acetylene generators. (Dipping and Sampling)
48, Gas: Heating and Illuminating, see 4 and 38+ for acetylene generator water and carbide feeds, respectively.
56, Harvesters, subclass 32 for pneumatic cotton picker nozzles. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
68, Textiles: Fluid Treating Apparatus, subclass 201, for needle type liquid injectors. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
73, Measuring and Testing, 215 and 861.61+ for pressure differential type meter nozzles and weirs, respectively. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
81, Tools, subclass 15.6 for cement injectors for resilient tire repair. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices
99, Foods and Beverages: Apparatus, 532 hollow injecting needles for pickling foods. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
104, Railways, subclass 11 for tampers with pneumatic injector. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
111, Planting, appropriate subclass for forming openings in the earth, depositing material in the openings and usually covering over with earth, and including in 118, the depositing of liquid or gases. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
122, Liquid Heaters and Vaporizers, subclass 405 for washout nozzles for cleaning boilers. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
52, Static Structures (e.g., Buildings), 11 for building cover with an eave, or valley gutter, subclasses 302.1+ for building structure or component with a fluid handling feature open to the ambient, and subclass 553 for a subsurface drainage device related to a lapped multiplanar or strip covered surfacing. (Drip Leakage or Waste Catchers)
52, Static Structures (e.g., Buildings), 192 for specific structure of a fluent material container with a single material port, e.g., outlet at a hopper bottom.
53, Package Making, subclass 395 and 396+ for processes, and especially subclasses 147+ for apparatus to feed the contents to and from a machine to form a package.
55, Gas Separation, 490 and those following for gas filters. (Pattern or Sifter Form Outlet and With Material Separator)
56, Harvesters, subclass 207 for harvesters combined with means to catch loosened (shelled out) grain that would otherwise be lost. (Drip Leakage or Waste Catchers)
62, Refrigeration, appropriate subclasses for processes and apparatus involving steps or means specialized to refrigeration processes and apparatus, solidified or liquefied gas product manufacturing and stored liquefied or solidified gas handling, particularly 45.1 for processes and apparatus for the handling of liquefied gas involving more than that required for any gas or liquid under pressure, and subclasses 389+ for a withdrawable liquid cooler having specific cooling means. (Gas or Vapor Dispensers)
65, Glass Manufacturing, 324 for molten glass dispensers, per se.
68, Textiles: Fluid Treating Apparatus, subclass 210 having loaders, unloaders and dumpers for such machines.
68, Textiles: Fluid Treating Apparatus, 5 for apparatus for applying a gas, steam or mist to textiles to treat the same, subclass 20 for combinations with a drier in which a gas contacts the textiles for drying purposes and subclasses 183 and 207, for apparatus in which a gas or vapor is supplied to the treating liquid. (Gas or Vapor Dispensers)
68, Textiles: Fluid Treating Apparatus, subclass 208 for drains and overflows for such apparatus. (Drip Leakage or Waste Catchers)
72, Metal Deforming, 253.1 for die-expressing metal. (Shaping Material by Extrusion)
73, Measuring and Testing, subclass 426 for the line between this class (222) and the measuring vessels provided for in Class 73.
73, Measuring and Testing, 863 for samplers. (Dipping and Sampling)
73, Measuring and Testing, 861 for volume or rate of flow meters, per se. The mere naming of a pump supply does not exclude such meters from Class 73; such meters are in the class both when the registering means are and are not
claimed. Class 222 has dispensing devices which determine a volume dispensed which do not repeat the operation as a result of, or under the control of, the completion of the preceding operation, see particularly Class 222, subclasses 282+ for those with volume varying means, 344+ for movable or conveyor type trap chambers, and 425+ for stationary trap chambers with cut-offs, these various types combined with a recorder, register, indicator, signal, or exhibitor being in subclasses 23+. (Volume or Rate of Flow Meters, Recorders, Registers)
73, Measuring and Testing, subclass 426 for measuring vessels. (Stationary Traps)
81, Tools, for some combinations with dispensing means, e.g., subclass 2 and 15.5+, dispensers, per se, being in subclass 15.6 when specially designed for injecting cement into tires.
83, Cutting, subclass 169, for means to lubricate tool or work.
99, Foods and Beverages: Apparatus, Lines With Other Classes and Within This Class, Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices, appropriate subclasses having apparatus specialized to treating food and beverages materials which include dispensing features, dispensers, per se, being in Class 22 or other appropriate dispenser classification. subclass 275, Class 99, as the residual beverage making apparatus subclass, has apparatus for carbonating a liquid by specific contact means, combined with means for adding flavoring material to form a beverage.
96, Gas Separation: Apparatus, appropriate subclasses for gas separators having special flow connections, valves, pumps, separated gas out-flow control means and residue flow control. (Gas or Vapor Dispensers)
100, Presses, 215 for presses not elsewhere classified having means for feeding material to the press, and see the Notes thereto for other press structures having means for feeding material thereto, and see subclasses 104+ for presses provided with drain means for expressed liquids.
101, Printing, 335 having inkers.
102, Ammunition and Explosives, appropriate subclasses having oil, gas, smoke, incendiary material containing devices.
102, Ammunition and Explosives, subclass 334 and 367+ for such devices for emitting gases or smoke for tracing or other purposes. (Gas or Vapor Dispensers)
104, Railways, subclass 133, for drip pans, nets, et cetera, for catching liquid, dirt, or articles that might fall from an elevated railway. (Drip Leakage or Waste Catchers)
109, Safes, Bank Protection, or a Related Device, subclass 28, for drains or sumps associated with containers to remove explosives to prevent their successful use. (Drip Leakage or Waste Catchers)
109, Safes, Bank Protection, or a Related Device, subclass 20 and 29+, for combinations involving releasing, generating, or distributing gases or vapors. (Gas or Vapor Dispensers)
109, Safes, Bank Protection, or a Related Device, subclass 20 and 29 having fluent material dispensing combinations, and 46 having movable safes or compartments with dumping mechanism.
110, Furnaces, appropriate subclasses, for combinations with means for feeding gases or vapors to the fuel or for cooling purposes. (Gas or Vapor Dispensers)
110, Furnaces, 104 for fuel feeders which blow the fuel into a furnace. (Throwers, Sprayers, Scatterers, and Dusters)
111, Planting, 118, for process and apparatus for impregnating the ground with a gas, vapor or liquid. (Gas or Vapor Dispensers)
114, Ships, subclass 182, for scuppers i.e., arrangements of passages or holes so that water may drain from decks. (Drip Leakage or Waste Catchers)
114, Ships, subclass 86, 224 and 232+ for caulking and seaming and oil distributing apparatus.
119, Animal Husbandry, subclass 10, 18, 51.01+, and 72+ having feeding and watering devices.
122, Liquid Heaters and Vaporizers, 451 having feeders.
118, Coating Apparatus, 504 for devices used by painters to protect one of two adjacent surfaces while the other is being coated. (Drip Leakage or Waste Catchers)
118, Coating Apparatus, specialized to spreading coating materials over surfaces to be coated. The dispenser subcombination (i.e., the means for merely discharging coating materials from a bulk supply) is in Class 222, or other appropriate dispenser classification. (Combinations of Dispenser and Independent Receiver)
118, Coating Apparatus, 300 for coating apparatus in which the coating material is projected, flung, sprayed or dripped on the work. (Throwers, Sprayers, Scatterers, and Dusters)
119, Animal Husbandry, subclass 159 for antivermin dust scatterers. (Throwers, Sprayers, Scatterers, and Dusters)
119, Animal Husbandry, 56.1 for feeding troughs with charge delivering means. (Stationary Traps)
122, Liquid Heaters and Vaporizers, subclass 395, for cleaning such apparatus by sand blast. (Sanding or Abrading)
124, Mechanical Guns and Projectors, particularly 4 for centrifugal guns. (Throwers, Sprayers, Scatterers, and Dusters)
126, Stoves and Furnaces, subclass 51, for devices for oil drip or overflow catching for oil burning cook stoves. (Drip Leakage or Waste Catchers)
128, Surgery, 203.12, for inhalers and subclasses 204.18+ having gas holder combinations. (Gas or Vapor Dispensers)
131, Tobacco, 38, 108+, and 180+, having tobacco feeders.
132, Toilet, 112 for liquid applying combs, and subclass 74.5 for manicuring devices with fluent material feed.
134, Cleaning and Liquid Contact With Solids, particularly subclass 43, 62, 84+, and 135 for drainers in combination with cleaning or liquid contact apparatus. (Drip Leakage or Waste Catchers)
134, Cleaning and Liquid Contact With Solids. See Lines With Other Classes, above, "Combinations of Dispenser and Independent Receiver" for liquid cleaning subcombinations.
137, Fluid Handling, this class is the generic class for the handling of fluids, and has miscellaneous distributing systems, valve actuation, fluid handling tanks, etc. Since many of the systems of the two classes are analogous or identical and most of the subcombinations are freely interchangeable, the search fields in the two classes must always be studied and compared.
137, Fluid Handling, which is the generic class for gas distribution; see particularly 154 for diverse fluid containing pressure systems, especially subclasses 206+ for gas pressure storage over or displacement of liquid; 223+ for inflatable article, e.g., tire, filling chuck and/or stem; subclasses 505+ for fluid pressure regulators, per se, this class (222) taking combinations of such regulators with significantly included supply containers; and subclasses 624.11+, for a fluid distribution system including a programmer or timer. (Gas or Vapor Dispensers)
137, Fluid Handling, 312 for drip and leakage collecting in fluid handling systems. (Drip Leakage or Waste Catchers)
137, Fluid Handling, 119 and 872+ for branched downspouts with flow deflectors; subclass 318 for devices for tapping a pipe or tank under pressure by forming an aperture therein under conditions which prevent loss of fluid; subclasses 614.02+ for separable flow path sections with a coupling operated valve in each wherein one section may be of the
barrel bushing type and the other section a spout; subclasses 615+ for distribution systems having swinging or articulated flow conduits; and subclass 801 for faucets and spouts, per se. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
137, Fluid Handling, subclass 801 for restrictors comprised in outlets, nozzles or spouts. (Restricters, Pipe and Tubular Conduit Structures)
137, Fluid Handling, subclass 145 and 147+ for siphon starting pumps, and 565.01+ for distribution systems including a pump. (Pumps)
137, Fluid Handling, 156 for gas pressure discharge of feed traps to boilers; subclasses 171+ for fluid separating traps; subclasses 571+ for plural tanks or compartments, including traps, connected for serial flow; subclass 596 for stop and waste systems; subclasses 602+ for multiple inlet with single outlet systems; subclasses 861+ for systems having flow control means for plural passages; subclasses 613+ for single flow path devices with serial valves which may comprise alternately seated inlet and outlet valves subclasses 625+ for multiway valve units; and subclass 627.5 for sequentially closing and opening alternately seating flow controllers. (Stationary Traps)
137, Fluid Handling, subclass 140 and 544+ for fluid handling systems having means for separating solid material from the fluid, as strainers, filters, separators and sediment traps. (Pattern or Sifter Form Outlet and With Material Separator)
137, Fluid Handling, 249 and 309+ for reversing valves for regenerative furnaces. (Furnace Charging and Discharging)
138, Pipes and Tubular Conduits, and see the notes thereto. (Restricters, Pipe and Tubular Conduit Structures)
138, Pipes and Tubular Conduits, appropriate subclasses for tubular conduit structures not disclosed as dispensing containers and not including dispensing features. For a statement of the line between Class 138 and Class 222 see the reference to Class 222 in the SEARCH CLASS note to the class definition of Class 138. (Container or Receptacle Structure)
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 86 for combinations of a filling device and means for catching material overflowing from the receptacle filled, and subclasses 106 and 364 for means supporting inverted supply receptacles upon receivers for draining. (Drip Leakage or Waste Catchers)
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 4 for filling with gas and/or evacuating, including tire inflation with gas, and subclass 38 for filling tires with nongaseous materials. (Gas or Vapor
Dispensers)
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, and see the Notes thereto, for a statement of the line with Class 222. (Combinations of Dispenser and Independent Receiver)
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, appropriate subclasses.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 110 for filling by immersion. (Dipping and Sampling)
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 331 having funnels and subclass 65.
152, Resilient Tires and Wheels, 415 for resilient tire inflating devices combined with vehicle or wheel structure for inflating means more or less permanently associated with an individual tire or for means for inflating one tire from another. (Gas or Vapor Dispensers)
156, Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclasses for processes and apparatus for laminating in general and see especially 145 for filling hollow laminae with fluent material. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
159, Concentrating Evaporators, subclass 30, for samplers for closed evaporating chambers.
159, Concentrating Evaporators, 43.1 having fluid feed or discharge devices.
160, Flexible or Portable Closure, Partition, or Panel, for flexible closures and see the places set forth in the notes thereto. (Closures)
162, Paper Making and Fiber Liberation, 407 for mold charging means employed in the making of a fibrous article from a liquid suspension of fibers.
164, Metal Founding, subclass 174 for die expressing apparatus for sand molds or cores and subclasses 418+ for continuous metal casting apparatus. (Shaping Material by Extrusion)
164, Metal Founding, 159 for sand mold forming apparatus and particularly subclasses 192 to 202 for means for delivering sand to the molding device. (Sanding or Abrading)
164, Metal Founding, 192, 198+ and 200+ for apparatus for charging mold forming materials into a flask, subclasses 303+ for apparatus for injecting metal into a mold, subclasses 335+ for metal casting apparatus including a ladle or crucible type metal receptacle and subclasses 437+ for
continuous casting apparatus including means to dispense molten metal into a mold.
166, Wells, subclass 162 and the subclasses there noted for well receptacles for receiving or depositing material in the well. (Dipping and Sampling)
169, Fire Extinguishers, 11, for those using a gaseous fire extinguishing agent. (Gas or Vapor Dispensers)
169, Fire Extinguishers, for apparatus and processes for extinguishing fires. (Combinations of Dispenser and Independent Receiver)
169, Fire Extinguishers, this class having fluid systems, automatic valves, tanks, portable receptacles, et cetera, having dispensing features specially adapted for the purposes of the class.
177, Weighing Scales, subclass 59 and 60+ for weigh chamber responsive material control. See subclass 77 of Class 222 and the note thereto. (Combinations of Dispenser and Independent Receiver)
174, Electricity: Conductors and Insulators, 8 having fluid feeding combinations.
178, Telegraphy, subclass 96 for inking devices for code receivers.
184, Lubrication, sections 7, 11; see particularly 14 for dispensing devices specially adapted for structural association with a bearing that receives the lubricant.
184, Lubrication, subclass 106 for drip pans placed beneath a bearing to catch unused oil and either hold it or return it to a reservoir. (Drip Leakage or Waste Catchers)
184, Lubrication, subclass 83 for gravity feed lubricators with measuring valves. (Stationary Traps)
186, Merchandising.
192, Clutches and Power-Stop Control, subclass 125 for stop mechanism controlled by material fed.
193, Conveyors, Chutes, Skids, Guides, and Ways, Lines With Other Classes and Within This Class, Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices.
194, Check-Actuated Control Mechanisms, see appropriate subclasses for check actuator.
196, Mineral Oils: Apparatus, subclass 135 for feeders for vaporizing apparatus.
193, Conveyors, Chutes, Skids, Guides, and Ways, 2, for
chutes. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
198, Conveyors: Power-Driven, 638 for a thrower type conveyor. (Throwers, Sprayers, Scatterers, and Dusters)
201, Distillation: Processes, Thermolytic, subclass 39, for a thermolytic distillation process including quenching the char with an inert gas. (Gas or Vapor Dispensers)
201, Distillation: Processes, Thermolytic, subclass 39 for a process including quenching the char with an inert gas.
202, Distillation: Apparatus, subclass 95, 227+ and 253 for quenchers.
202, Distillation: Apparatus, subclass 227, for apparatus for cooling residues with gas.
204, Chemistry: Electrical and Wave Energy, subclass 246, 256, 258, 265, 270, and 277, for cells having means to feed gas thereto. (Gas or Vapor Dispensers)
204, Chemistry: Electrical and Wave Energy, subclasses 245-247, 255-258, 263-266, 269, 270, and 275.1-278.5 for electrolytic cell feeders; and especially subclasses 246, 256, 258, 265, 270, and 277 for electrolytic cells having means to feed gas thereto (e.g., having a gas or vapor dispenser therefor, etc.).
206, Special Receptacle or Package, .6 for gas storage means. (Gas or Vapor Dispensers)
206, Special Receptacle or Package, and see the notes for related art. (Container or Receptacle Structure)
209, Classifying, Separating, and Assorting Solids, particularly subclasses 19-37, 133+, for gaseous suspension type and 466-477 and 502, for stratifiers with gas treatment means. (Gas or Vapor Dispensers)
209, Classifying, Separating, and Assorting Solids, particularly 233 for sifters. (Pattern or Sifter Form Outlet and With Material Separator)
210, Liquid Purification or Separation, sections 12, 13; 198.1 for, inter alia, means for dispensing materials in combination with a Class 210 separator, and subclasses 523+ for mechanical means for removing a constituent from a gravitational separator.
210, Liquid Purification or Separation, 348 for filters, per se. (Pattern or Sifter Form Outlet and With Material Separator)
210, Liquid Purification or Separation, subclass 248 for separators for that class having a drip, overflow or content
draining feature. (Drip Leakage or Waste Catchers)
210, Liquid Purification or Separation, subclass 92 for filters with a test valve, subclasses 198.1+ for means to add treating material to a separator, and subclasses 514+ for portable invertible separators. (Dipping and Sampling)
209, Classifying, Separating, and Assorting Solids, subclass 642 for assorters involving throwing. (Throwers, Sprayers, Scatterers, and Dusters)
215, Bottles and Jars, 40 for neck structure, and subclasses 307+ for closures providing means whereby the interior of the closure is communicable with the exterior. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
215, Bottles and Jars, 200 for closures under that class (215) definition. (Closures)
217, Wooden Receptacles, 98, for barrel bungs. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
220, Receptacles, 581 for a high-pressure-gas tank. (Gas or Vapor Dispensers)
220, Receptacles, and see the notes for related art.
220, Receptacles, 200, and the places set forth in the notes thereto for rigid closures. (Closures)
223, Apparel Apparatus, subclass 43 for devices for turning garments, bags, and tubular articles inside out by applying fluids under pressure thereto, and subclass 67 for inflatable forms. (Gas or Vapor Dispensers)
226, Advancing Material of Indeterminate Length, appropriate subclasses for methods of, and apparatus for, feeding material without utilizing the leading or trailing ends to effect movement of the material.
228, Metal Fusion Bonding, 33 and 52 for fusion bonding apparatus having dispensing means.
232, Deposit and Collection Receptacles, for receptacles (such as ballot fare and letter boxes, etc.) specially designed to have one person deposit and another collect the deposited article.
239, Fluid Sprinkling, Spraying, and Diffusing, 650 for a vehicular type road sander comprising a container for nonfluid material and means to scatter or strew the material over an extended area. (Sanding or Abrading)
229, Envelopes, Wrappers, and Paperboard Boxes, subclass 125.04 for a paperboard box having a nonunitary (i.e., separate, attached) closure usable egress opening). (Closures)
251, Valves and Valve Actuation, subclass 117 with restrictor in parallel to main valve, and 118+ for serial valves and flow restrictors. (Restricters, Pipe and Tubular Conduit Structures)
251, Valves and Valve Actuation, and see the places set forth in the notes thereto. (Valves and Valve Actuation)
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 271 for spraying devices with attached penetrating means; subclass 309 for seal puncturing means for providing a discharge opening in a supply holder; subclass 445 for nozzles having means for selectively delivering a high or low pressure stream of fluid; other appropriate subclasses for desired nozzle structure, per se.
229, Envelopes, Wrappers, and Paperboard Boxes, and see the Notes for related art. (Container or Receptacle Structure)
229, Envelopes, Wrappers, and Paperboard Boxes, for a paperboard box combined with an external material flow guide means (e.g., nozzle, spout, pouring lip, etc.) except when such guide means has a cutting or punch feature. Class 229 also provides for a paperboard box combined with internal material guide means which means are limited to utilizing the force of gravity to guide material contents (e.g., internal inclined ramp which utilizes gravity to urge material toward an egress opening), also, search subclass 214, 215+, and 248+ for a paperboard box having a reusable closure which is opened by tearing along a weakened line or adhesive seam, and which forms a pour spout when in its open configuration. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
235, Registers, for register structure where no significant dispensing features are claimed, even though a dispenser or meter is named as operating the register. (Volume or Rate of Flow Meters, Recorders, Registers)
239, Fluid Sprinkling, Spraying, and Diffusing, 120 for spray fluid systems having means to catch or otherwise dispose of material escaping or leaking from the system through uncontrolled paths or beyond the last point of control. (Drip Leakage or Waste Catchers)
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 374 and 548+, for pattern flow outlets for fluid spraying nozzles. (Pattern or Sifter Form Outlet and With Material Separator)
239, Fluid Sprinkling, Spraying, and Diffusing, appropriate subclasses for devices which project streams of fluid (as fireman's nozzles) and for sprinkling liquids; 650 for a container for nonfluid material and means to scatter or strew the material over an extended area, the material being of any type (e.g., fertilizer, seed, insecticide, etc.). Liquid
dispensers not having the special features for Class 239 are in Class 222. (Throwers, Sprayers, Scatterers, and Dusters)
241, Solid Material Comminution or Disintegration, subclass 168, for hand supported comminutors for condiments. (Hand Manipulable Shakers)
244, Aeronautics, subclass 98 and 99, for arrangements for inflating and releasing buoyant gas from lighter-than-air craft. (Gas or Vapor Dispensers)
248, Supports, 75 for hose and/ or nozzle supports. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
241, Solid Material Comminution or Disintegration, for comminuting processes and apparatus and such steps or means combined with feeding and/or discharging, dispensers, per se, being in Class 222 or other appropriate dispenser classification. See Lines With Other Classes and Within This Class, Material Handling, Exacavating, Distributing, Harvesting, in the main class definition of Class 241, for a further statement of the line. See also Lines With Other Classes and Within This Class, Hand Manipulable Shakers, in the class definition of Class 222.
248, Supports, 128 and 146+, for receptacle stands, 196, for receptacle easels 311.2+, for receptacle holding brackets, and 318, for suspended supports for receptacles or bowls.
251, Valves and Valve Actuation, 149 for separable flow path sections with a coupling operated valve in one wherein one section may be of the barrel bushing type and the other section a spout; and subclass 155 for valve nozzles and spouts. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
261, Gas and Liquid Contact Apparatus, for dispensing organizations combined with gas and liquid contact means where the gas pressure discharge assistant means is arranged to secure intimate contact and mixing of the gas pressure medium and the liquid being dispensed. Such arrangements include (1) projection or positioning of an additional gas pressure fluid inlet below the surface of a liquid for contact purposes, (2) particular configuration or perforation of a gas inlet to secure more intimate contact, and (3) provision of mixing means to insure more intimate contact. Dispensing devices disclosed as contact devices (as aerators, carbonators, etc.) are classified in Class 222 unless contact means of the nature described in the statement of the line hereinabove are claimed. (Gas or Vapor Dispensers)
261, Gas and Liquid Contact Apparatus, and see appropriate subclasses for feeding and discharging liquids to and from discharge apparatus.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, appropriate subclasses for processes of molding or shaping plastic materials within the class definition; and see References to Other Classes in Class 222 for the reference to Class 264. (Combinations of Dispenser and Independent Receiver)
264, Plastic and Nonmetallic Article Shaping or Treating: Processes, appropriate subclasses for processes of shaping or molding of plastic materials within the class definition. See particularly 176.1 for formation of indefinite length or continuous articles by extrusion, and subclasses 299+ for casting or mold or die casting for processes not more specifically provided for above, therein. (Shaping Material by Extrusion)
285, Pipe Joints or Couplings, 154.1 for a joint between a pipe or cable and box, subclasses 136.1+ for a pipe or rod-to-pipe-to-plate coupling, and subclasses 189+ for an end-to-plate coupling. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
291, Track Sanders, 46 for sand delivery nozzles. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
291, Track Sanders. (Sanding or Abrading)
291, Track Sanders. (Combinations of Dispenser and Independent Receiver)
294, Handling: Hand and Hoist-Line Implements, 49 for hand shovels and subclasses 68.2+ for hoisting buckets adapted for dumping a load. (Dipping and Sampling)
294, Handling: Hand and Hoist-Line Implements, 68.2, having the hoisting bucket type of implement with discharging means.
296, Land Vehicles: Bodies and Tops.
296, Land Vehicles: Bodies and Tops, subclass 38, for drip pans located between the load and running gear to catch liquid dripping from the load. (Drip Leakage or Waste Catchers)
314, Electric Lamp and Discharge Devices: Consumable Electrodes, 21 for combinations with means for feeding materials to the discharge space.
315, Electric Lamp and Discharge Devices: Systems, 111.01 for combinations with means to feed fluent materials to the discharge space.
346, Recorders, for recorder structure, where no significant dispensing features are claimed, even though a dispenser or meter is named as operating the recorder. (Volume or Rate of Flow Meters, Recorders, Registers)
361, Electricity: Electrical Systems and Devices, 212 for nozzles and spouts combined with means discharging or preventing accumulation of electric charges. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
366, Agitating, 3 and 10+ for process and apparatus for incorporating gas in a mortar mix, or utilizing gas for mixing, discharging, or conveying. (Gas or Vapor Dispensers)
366, Agitating, subclass 262 for pump type agitators. (Pumps)
366, Agitating, 129 for hand manipulated agitators, and see the class definition of Class 366 for the line between these classes. (Hand Manipulable Shakers)
374, Thermal Measuring and Testing, subclass 157 for a thermometer combined with a sampling cup. (Dipping and Sampling)
400, Typewriting Machines, 470 for a typewriter having a dispenser for liquid ink.
401, Coating Implements With Material Supply, appropriate subclasses, for the combination of a coating tool including dispensing means which supplies coating material either to the tool or to a work surface for a spreading operation by the tool (see particularly subclass 136 and 137+, for the latter).
401, Coating Implements With Material Supply, subclass 15, for a hand manipulated coating device with material supply having a splash guard or a drip catcher. (Drip Leakage or Waste Catchers)
405, Hydraulic and Earth Engineering, 154, for a process or apparatus for laying pipe or cable into a submerged or subterranean location. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
406, Conveyors: Fluid Current, 154 for outlets for fluid current conveyors. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
406, Conveyors: Fluid Current, subclass 107, for means for discharging from the tube material that flows backwardly by gravity in the tube. (Drip Leakage or Waste Catchers)
406, Conveyors: Fluid Current, for feeding gas in pneumatic conveyor combinations. (Gas or Vapor Dispensers)
406, Conveyors: Fluid Current, 96 for pumps having, in addition to a fluid intake, a solid material intake or some other structure peculiar to conveying solids in a fluid current generated by the pump. (Pumps)
406, Conveyors: Fluid Current, particularly subclass 71 and 157+ for such conveyors involving throwing or scattering. (Throwers, Sprayers, Scatterers, and Dusters)
414, Material or Article Handling, subclass 412 for a device for emptying a portable receptacle wherein the device is provided with means for opening the receptacle prior to emptying and further wherein the means is of the rapturing or cutting type. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
414, Material or Article Handling, subclass 221 for apparatus for moving material between zones having different pressures and inhibiting any change in the pressure gradient existing therebetween, and wherein a path having a vertical component includes serially arranged valves. Valves and Valve Actuation)
414, Material or Article Handling, appropriate subclasses for the moving of material from a source to a destination, the source, in some instances, being in the nature of a dispenser. (Combinations of Dispenser and Independent Receiver)
414, Material or Article Handling, 147 for a chamber of a type utilized for a heating function and a material charging or discharging means therefor. (Furnace Charging and Discharging)
414, Material or Article Handling, appropriate subclasses (e.g., 137+, 140+, 265, 328+, 333-402, 406+, etc.) for the loading or unloading of vehicles. (Vehicle Loading and Unloading)
414, Material or Article Handling, appropriate subclasses (e.g., 288+) for receptacle structure which cooperates with, or is otherwise peculiarly related to, means for charging or discharging the receptacle. (Container or Receptacle Structure)
415, Rotary Kinetic Fluid Motors or Pumps, appropriate subclasses for a nozzle combined with turbine structure. See section on Pumps, above, for a statement of the line with pumps. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
417, Pumps, subclass 198 for jet pump nozzles. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
431, Combustion, subclass 344 for a flame holder, fuel tank assembly. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
417, Pumps. (Pumps)
418, Rotary Expansible Chamber Devices. (Pumps)
418, Rotary Expansible Chamber Devices, for rotary expansible chamber pumps, per se. (Gas or Vapor Dispensers)
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, appropriate subclasses for chemical apparatus involving chemical reactors and apparatus for carrying out physical reactions of the chemical type. Also fume generators. (Gas or Vapor Dispensers)
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, appropriate subclasses for miscellaneous chemical apparatus. (Combinations of Dispenser and Independent Receiver)
423, Chemistry of Inorganic Compounds, 210 for purifying or separating gaseous mixtures by a chemical reaction. (Gas or Vapor Dispensers)
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, appropriate subclasses for a molding machine for shaping or reshaping a nonmetal combined with means to feed stock material to a shaping surface; see the search notes under subclass 447 of Class 425. (Combinations of Dispenser and Independent Receiver)
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, 197 for a molding machine for nonmetals having a strainer for stock material upstream of the shaping area. (Pattern or Sifter Form Outlet and With Material Separator)
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, 269 for a molding machine comprising a dipping type shaping mandrel on which an article is formed; and subclasses 276+ for apparatus including means excavating from a bulk source with simultaneous shaping (e.g., ice cream scoop, etc.). (Dipping and Sampling)
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, 80.1 for a molding means including a scattering type material depositor for placing the material to be shaped on the shaping surface. (Throwers, Sprayers, Scatterers, and Dusters)
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, 376.1 for an extrusion type molding machine for a nonmetal; see the search notes thereunder. (Shaping Material by Extrusion)
429, Chemistry: Electrical Current Producing Apparatus, Product and Process, 72 for batteries having electrolyte feeding means.
431, Combustion, subclass 117 for a liquid fuel burner having means to discharge overflow fuel from a vaporization or combustion zone; and subclass 119 for a burner having an escaping material collector. (Drip Leakage or Waste
Catchers)
431, Combustion, 159 for a furnace with means dispensing fluid fuel into its combustion chamber. (Furnace Charging and Discharging)
433, Dentistry, 80 for intra-oral dispensing apparatus used by dentists.
441, Buoys, Rafts, and Aquatic Devices, subclass 34 having buoys with oil distributors.
441, Buoys, Rafts, and Aquatic Devices, 88 and 92+ for self-inflating body supporting buoyant devices for sustaining a user partially immersed in liquid. (Gas or Vapor Dispensers)
446, Amusement Devices: Toys, 15 for bubble blowing toys.
449, Bee Culture, 9 for a bee hive having a bee feeding provision, and subclass 48 for a free standing bee feeder.
446, Amusement Devices: Toys, 24 for smoke dispensers; subclasses 166+ for a toy operated by a gravity fed fluent operated toys; and subclass 475 for other dispensing toys. (Gas or Vapor Dispensers)
451, Abrading, 75 for a sandblasting machine. (Gas or Vapor Dispensers)
451, Abrading, particularly subclass 37 and 38+ for a sandblasting process, subclasses 75+ for a sandblasting machine, subclasses 446+ for an abradant-supplying accessory, and subclass 450 for an accessory for wetting a grindstone. (Sanding or Abrading)
451, Abrading, subclass 90 and 102 for a sandblast nozzle. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
452, Butchering, 35 for sausage stuffer nozzles. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
452, Butchering, 35 for sausage stuffers. (Shaping Material by Extrusion)
460, Crop Threshing or Separating, 16 for feeders for shellers and huskers.
472, Amusement Devices, particularly subclass 65 for an amusement illusion caused by visual imitation of an event occurring in nature, e.g., rain, snow, fire, etc.
493, Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web, see 269 for making a tube from a sheet or web.
604, Surgery, 23 for gas application to the body for therapeutic treatment. (Gas or Vapor Dispensers)
604, Surgery, 187 for hypodermic syringes; subclasses 272+ for needles, per se; and subclasses 275+ for nozzles inserted in the body. (Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices)
604, Surgery, 289 for applying or removing material from the external surface of the body or the cutaneous layer.

This subclass is indented under the class definition. Dispensing processes.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 1 for processes for dispensing articles not otherwise provided for.

This subclass is indented under the class definition. Dispensers having check control means.

SEE OR SEARCH THIS CLASS, SUBCLASS:
153.01 where check control means is claimed only as locking means.

SEE OR SEARCH CLASS:
194, Check-Actuated Controlled Mechanisms, appropriate subclass for patents disclosing a check controlled dispensing apparatus and claiming a specific feature of the control mechanism.
221, Article Dispensing, 151 for article dispensers not otherwise provided for, and having means for blocking or disabling the ejector or releaser means thereof, such means often being disclosed as check-control means.
235, Registers, subclass 379, 380, 381, and 383 for banking and credit card systems and mechanized stores, respectively, wherein either money or merchandise is released upon the
sensing of a valid credit card and including means to debit the account of the individual receiving the money or merchandise.

This subclass is indented under the class definition. Dispensers disclosed for dispensing gas or vapor as its proximate purpose.
(1) Note. The terms "gas" and "gaseous" are used in the definitions of the indented subclasses to include vapor.
(2) Note. See Lines With Other Classes and Within This Class, Gas or Vapor Dispensors, in the main class definition for the distinction between dispensing of gases and vapors, and the use of gases and vapors to dispense other materials and for notes to other classes having gas or vapor dispensing, per se, or in various combinations.
(3) Note. The following notes to other subclasses in this class specifies the subclasses dealing by title or definition with devices that handle fluids (gases, vapors, or liquids) not involving dispensing of such fluids as the proximate purpose of the combination.

SEE OR SEARCH THIS CLASS, SUBCLASS:
53 and 152, for inert atmosphere providing means with and without automatic control means.
61 258, 261 through 263, 373, 389, 394+, for dispensers with fluid pressure discharge assistants in various combinations.
69 332, 442, 468, and 478+, for vent passages in various combinations.
72 for dispensers having volume or rate of flow meters with gas separating means.
113 for dispensers with illuminator or burner.
130 for combinations of dispensers with nondispensing container compartment or jacket.
146 for dispensers with heating or cooling means.
188 for dispensers with a fluid-trap-seal, for inlets or outlets.
190 for dispensers with material treatment or conditioning means.
195 for dispensers with gas agitation.
206 for resilient wall dispensers in which the resilient wall device compresses contained fluids or feeds fluids under pressure to cause discharge.
334 for dispensers having fluid operated motors.
630 for dispensers in which a flowing fluid contacts, picks up, and carries the material to be dispensed.

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137, Fluid Handling, 63 for respiratory control devices and subclasses 223+ for tire filling chucks and/or inflation stems.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 4 for gas filling methods including tire inflating, and subclass 38 for means for filling tires with nongaseous materials.
152, Resilient Tires and Wheels, 415, for tire inflating devices combined with tire or wheel, for inflating means intended to be associated with only one particular tire and for means for inflating one tire from another.

This subclass is indented under subclass 3. Dispensers having means, in addition to the gas dispensing means, to dispense nongaseous material.
(1) Note. If the gas is dispensed by itself, it may also be used as a discharge assistant, to aid in dispensing nongas materials.

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137, Fluid Handling, 171 for fluid separating traps and vents in fluid handling systems.

This subclass is indented under subclass 3. Dispensers claimed in combinations with a punch or a cutter.

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80 for nongas dispensers with cutter or punch.

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141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 19 for organizations in which a cutter or punch opens a gas cell to deliver gas pressure discharge assistant to refill a dispenser.

This subclass is indented under subclass 3. Dispensers having plural sources of supply connected to the outlet in parallel but controlled for successive use.

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129 for other plural sources.

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137, Fluid Handling, subclass 113 for similar devices comprising plural inflows to a system controlled by the depletion of a source.

This subclass is indented under the class definition. Dispensers having means to terminate material discharge (i.e., cut-off), which means is caused to operate by some character of interconnection with mechanism which senses or determines volume or rate of flow, which mechanism is designed to be preset, (i.e., set at the desired volume or rate of flow) prior to initiation of the dispensing operation or at any time during the dispensing to discharge the final unit of a desired volume. The mechanism may be a volume meter, rate of flow meter, float, follower, pump, etc.
(1) Note. Selective presetting may involve only a choice between two or more fixed quantity dispensing mechanism which are volume or rate of flow controlled.
(2) Note. Cut-off in the case of reciprocating pump mechanism requires holding the pump against further operation not merely determining the length of a stroke.
(3) Note. Preset devices which operate mechanically, as by counting a number of mechanical movements, without regard to whether or not material is actually dispensed, are not here,
nor under "automatic", but in appropriate following subclasses, especially under indicators, subclasses 23+ or timing mechanism, subclass 70.
(4) Note. See Lines With Other Classes and Within This Class, Volume or Rate of Flow Meters, Recorders, Registers, in the main class definition for the general line on volume or rate of flow meters.

SEE OR SEARCH THIS CLASS, SUBCLASS:
23 for dispensers combined with recorders, registers, etc., without selectively preset volume or rate of flow operated cut-off, see note 3.
59 for rate of flow mechanism operated cut-off without selective presetting means.
70 see note 3, for dispensers with mechanism to time discharge by operations other than counting dispensing cycles or units dispensed.
71 for dispenser with volume or rate of flow metering without a cut-off operated thereby.
282 for dispensers having discharge assistants with means to vary or adjust the volume discharged.

This subclass is indented under subclass 14. Dispensers having means for preventing a change of position of the volume selecting means while material is being discharged.

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34 for means to prevent setting a register to zero during discharge of material.
435 for dispensers having means to prevent adjustment of a volume varying means in a stationary trap chamber during discharge.

This subclass is indented under subclass 14. Dispensers in which the element that caused operation of the cut-off mechanism is brought to its beginning position as a part of the dispensing operation.

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33 for registers in which the operating cycle includes reset to zero, there being no selectively preset cut-off.

This subclass is indented under subclass 14. Dispensers having (1) means controlled by the rate of flow and moving with the flow sensing means from a variably determined initial position to a fixed cut-off position, or having (2) means controlled by the accumulation of successive trapped volumes to set the cut-off operating means back step-by-step from a variably predetermined initial position to a fixed cut-off position.

This subclass is indented under subclass 17. Dispensers in which the controller member or indicator may make more than one rotation on its axis, which is also the axis of its scale or dial, before reaching its cutting-off point.
(1) Note. The member or indicator may follow a spiral path around its axis, as in following a screw or a spiral in a single plane.

This subclass is indented under subclass 18. Dispensers in which a dial type presetting member or indicator is connected with one or more additional dials by means of transfer mechanisms.

This subclass is indented under subclass 17. Dispensers in which the cut-off is effected by closing a valve.

This subclass is indented under subclass 14. Dispensers having means capable of being set in advance of dispensing to accumulate a single trapped volume selected from different possible quantities, and having means controlled by the trapped volume for cutting off the supply.

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64 for material level controls for dispensing operations, not selectively preset, though in some cases capable of minor adjustment to insure accuracy in delivering the intended volume.

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92, Expansible Chamber Devices, 13, for adjustable stroke expansible chamber devices where no dispensing features are claimed.

This subclass is indented under subclass 14. Dispensers in which the cut-off is set during a metered discharge, to operate after the discharge of the unit which is being measured at the time the cut-off is set.

This subclass is indented under the class definition. Dispensers having signals, indicators, registers, recorders, gauges, or display devices for indicating a condition or performing a measuring function, such devices consisting of relatively movable, changeable, or audible information giving parts. A dispenser part as a piston, wall or drain pipe, may cooperate with a graduated part to form the indicator but devices in which one of the means to be inspected or compared is merely the material to be dispensed or its surface are not included.
(1) Note. See Lines With Other Classes and Within This Class, Volume or Rate of Flow Meters, Recorders, Registers, in main class definition for the general line on volume or rate of flow meters.

SEE OR SEARCH THIS CLASS, SUBCLASS:
52 for automatic controls without the features of this subclass (23).
71 for volume or rate of flow meters without the features of this subclass (23).
77 for dispensers combined with weighing means.
113 for dispensers with an illuminator or fuel burner.
154 for mere inspection devices.
192 for display and exhibiting means which do not indicate a condition or perform a measuring function.

SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 88 and 89.
40, Card, Picture, or Sign Exhibiting.
116, Signals and Indicators.
137, Fluid Handling, subclass 141, 213+ and 551+ for fluid handling systems combined with recorders, registers, signals or indicators.
198, Conveyors: Power-Driven, subclass 502.
215, Bottles and Jars, subclass 227, 230 and 365+.
221, Article Dispensing, 2 for article dispensing devices combined with recorders, registers, signals or indicators.
229, Envelopes, Wrappers, and Paperboard Boxes, subclass 83.
235, Registers, subclass 379, 380, and 381 for banking and credit card systems and 383 for mechanized stores, respectively, wherein either money or merchandise is released upon the sensing of a valid credit card and including means to debit the account of the individual receiving the money or merchandise, and see Lines With Other Classes and Within This Class, Volume or Rate of Flow Meters, Recorders, Registers, in the definition of Class 222.
291, Track Sanders, subclass 17.
340, Communications: Electrical, 500 for electric alarms or signals automatically responsive to a condition.
346, Recorders, and see Lines With Other Classes and Within This Class, Volume or Rate of Flow Meters, Recorders, Registers, in the definition of class 222.

This subclass is indented under subclass 23. Dispensers having means in the nature of a shutter for concealing the significant part of the recorder, register, etc., during portions of the dispensing cycle.

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221, Article Dispensing, subclass 7 for article dispensers not otherwise classified including dispenser operated register means.
235, Registers, subclass 24 for cash register indicator shutters.

This subclass is indented under subclass 23. Dispensers having two or more recorders, registers, indicators, signal devices, or exhibitors.

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24 for register and shutter combinations in which the shutter has a signalling function.

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137, Fluid Handling, subclass 552 for fluid handling systems having plural recorders, etc.

This subclass is indented under subclass 25. Dispensers having two or more information devices relating to a volume measuring function.

SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for such devices having also a selectively preset cut-off mechanism.

This subclass is indented under subclass 25. Dispensers having a register for counting or totalizing volumes discharged and a signal which usually gives information as to the operation or condition of the totalizer or counter.

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24 for registers and signals in which the signal conceals the register indication.

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221, Article Dispensing, subclass 7 for article dispensing devices having dispenser operated registers.

This subclass is indented under subclass 25. Dispensers having a common operating factor for two or more information devices, so that they operate simultaneously or proportionately. Volume and cost registers are included.

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26 where at least two of the information devices have a volume measuring function.

This subclass is indented under subclass 23. Dispensers having a signal reading point marker and a scale or set of indications consisting of plural lines or columns of different values or significance, or a plurality of scales or sets of indications.

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25 for pairs of registers each having a pointer or reading point marker and a common operator.

This subclass is indented under subclass 23. Dispensers in which the information device is a recording means.

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346, Recorders.

This subclass is indented under subclass 23. Dispensers in which the dispensing means operates an information device or a portion thereof by an adjustable connection so that the indication may be varied proportionately with relation to the discharge, usually to correct a measuring indication, or to transpose it into different terms, or in which an element of the information device is adjustable with reference to its mounting, or for adjustable information device elements where the effect is not felt proportionately through the range of the dispenser, but is merely an adjustment of a part and its support for accuracy.

This subclass is indented under subclass 23. Dispensers having an information device of the register or counter type in which provision is made for returning the parts to their initial or zero position, manually or by operation of the dispenser.

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221, Article Dispensing, subclass 7 for article dispensing devices including dispenser operated registers.
235, Registers, subclass 144, for register zero setting means not restricted to dispensers.

This subclass is indented under subclass 32. Dispensers in which the register parts are set to zero by the operation of the dispenser as a part of a discharge cycle. The indication to be set back is usually one remaining from the previous dispensing operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:
16 for registers, etc., having an element that causes operation of the cut-off mechanism, and set to starting position as a part of the discharge cycle.

This subclass is indented under subclass 32. Dispensers having means to prevent setting the register to zero while material is being discharged.

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15 for selectively preset mechanism with means to prevent change of setting during discharge.
435 for means for preventing change of volume adjusting means of a stationary trap chamber during discharge.

This subclass is indented under subclass 32. Dispensers having means to prevent the initiation of a discharge operation unless the register is at its initial or zero position.

This subclass is indented under subclass 23. Dispensers having a totalizer which counts the successive operating cycles of the dispenser.
(1) Note. An operation cycle consists of the period from the beginning of a discharge until the dispenser parts and the state of the trap, if any, as regards material level, again reach the condition at which discharging started. Thus one discharging operation may include either one or any desired number of cycles.
(2) Note. Dispensers of the forcer type, gravity trap, conveyor trap, or flow meter type may be included, and groups of cycles may be counted instead of single cycles.

SEE OR SEARCH CLASS:
177, Weighing Scales, 18 for a weigher with a cycle totalizer.
221, Article Dispensing, subclass 7 for article dispensing devices having dispenser operated registers.
235, Registers, particularly subclass 94.

This subclass is indented under subclass 36. Dispensers in which the volume discharge per operating cycle may be varied, or the dispenser has different or varying cycles of operation, and the totalizer is operable in accordance therewith.

This subclass is indented under subclass 36. Dispensers in which the dispenser part operating the totalizer has a to and fro motion.

This subclass is indented under subclass 23. Dispensers in which the information device is audible.

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116, Signals and Indicators, appropriate subclasses particularly 137, 147 and 148+.
137, Fluid Handling, 213 for whistle type vents in diverse fluid containing pressure systems.
221, Article Dispensing, subclass 3 for article dispensing devices having audible signal or indicator means.
291, Track Sanders, subclass 17.
340, Communications: Electrical, 384.1 for electrical audible signals or alarms.

This subclass is indented under subclass 23. Dispensers in which (1) the information device is operated by the flow of material either through the usual dispenser channels or overflowing therefrom, or (2) the surplus material flows out of an opening specially provided for signaling purposes.

SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for totalizers operated by flow meters. The mere fact that flow is taking place is shown here.
159 for transparent devices for observing flow, without the aid of a flow-operated movable element.

SEE OR SEARCH CLASS:
116, Signals and Indicators, subclass 112 and 264+.
340, Communications: Electrical, 603 for electrical automatic fluent material responsive indicating systems.

This subclass is indented under subclass 23. Dispensers having means giving information as to the position or range of motion of a dispenser part, as a valve, follower, piston, or adustable wall. The means ordinarily comprises a scale and pointer, but a dispenser part, as an edge of a wall or the end of a projecting part may serve as a pointer or reference point.

SEE OR SEARCH CLASS:
116, Signals and Indicators, particularly 200 for scale and pointer subcombinations.
137, Fluid Handling, 553 for fluid handling systems having position or extent of motion indicators.
221, Article Dispensing, 4 for article dispensing devices in which a dispenser part, position or adjustment is indicated by indicating means.

This subclass is indented under subclass 41. Dispensers in which the position or selection for use, of one of a plurality of valves, outlets, traps, or other dispenser parts having equivalent functions, is shown.

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137, Fluid Handling, subclass 555 for fluid handling systems having means for indicating selection from among plural branches.
221, Article Dispensing, subclass 5 for plural source article dispensing devices having article selection indicating means.

This subclass is indented under subclass 41. Dispensers in which the indicator serves as a stop for the movable part as well as showing its position or extent of motion. Indicators showing the setting of one of a plurality of selectively usable stops are here also.

This subclass is indented under subclass 41. Dispensers in which the indicator comprises a scale and pointer, having a series of detents accompanying or serving as the graduations of the scale, the effect being to check or hold the indicator and the dispenser part in the indicated position.

This subclass is indented under subclass 41. Dispensers in which the moving element of the indicator is flexibly connected with the movable dispenser part. The scale indicia may be placed on the flexible part.
(1) Note. Actuation by an endless drive means is not included, even though the means is flexible.

This subclass is indented under subclass 41. Dispensers in which a movable dispenser part is operated by a screw which also carries or serves as an indicator element.

This subclass is indented under subclass 41. Dispensers in which the indicator part is rigidly carried by a movable dispenser part. The dispenser part may itself constitute an element of the indicator, as the end of an inlet or outlet pipe, or of a piston.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 556 for fluid handling systems having an indicator element rigidly carried by a movable system part.

This subclass is indented under subclass 47. Dispensers in which the dispenser part carrying or serving as the indicator element has a pivoted or rotary motion.

This subclass is indented under subclass 47. Dispensers in which the indicator element comprises or is carried by a reciprocable dispenser element projecting from the container.

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47 for telescoping container parts carrying indicator elements.

This subclass is indented under subclass 49. Dispensers in which the scale is placed on the container wall or mounted to extend therefrom.

This subclass is indented under subclass 23. Dispensers in which the information device is a float level indicator.

SEE OR SEARCH CLASS:
33, Geometrical Instruments, 717 for sounding type distance measuring.
73, Measuring and Testing, 305 for float type liquid level or depth gauges, and subclass 322.5 providing for floats, per se.
116, Signals and Indicators, 110 for float operated liquid level indications.
137, Fluid Handling, subclass 558 for liquid level responsive indicator, recorder or alarm.
340, Communications: Electrical, 612 for electrical automatic fluent material level responsive indicating systems.

This subclass is indented under the class definition. Dispensers having means to sense some condition, which means causes operation of a control device.
(1) Note. The above definition excludes valves, closures, and nozzles, directly operated by the pressure or flow of the material (e.g., check valves), or by gravity or inertia. See the following notes.
(2) Note. Automatic controls are associated with subject matter of most of the classes. Only those will be set forth in the notes to this and the indented subclasses which appear most nearly related to the combinations of this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for cutoffs operated by selectively preset volume or rate of flow mechanism.
23 for automatic controls where a recorder, register, indicator, signal or exhibitor is claimed.
332 375, 380, 387, 396, 400, 490, and 491+, for various combinations including valves, closures, and movable nozzles directly operated by the pressure or flow of material.
353 437, 457, and 479, for barometric and angle of repose devices in various combinations.
500 for gravity and inertial operated closures and valves.

SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, appropriate subclasses for automatic controls associated with the subject matter of such class. It is noted that this class includes such dispensing, per se, for the special purposes of the class (4).
34, Drying and Gas or Vapor Contact With Solids, 524 particularly subclasses 573+, for automatic controls for the subject matter of such class.
118, Coating Apparatus, 663 for coating apparatus having automatic control features.
119, Animal Husbandry, appropriate subclasses. Many of the devices in this class, particularly in 51 and 72+ are dispensers, per se, for the special purposes of this class.
122, Liquid Heaters and Vaporizers, subclasses 446-458 and 504+.
137, Fluid Handling, 38 for control by change of position or inertia of the system; subclasses 47+ for speed responsive valve control; subclasses 59+ for freeze condition responsive safety systems; subclasses 65+ for combustion failure responsive fuel safety cutoffs; subclasses 67+ for destructible or deformable element control; subclasses 78.1+ for atmospheric change responsive control; subclasses 82+ for pressure modulators, relays or followers; subclasses 87.01+ for self-proportioning or correlating systems; subclasses 386+ for liquid level responsive or maintaining systems; and subclasses 455+ for line condition change responsive valves, including safety cut-off, pop, pressure regulating and directly responding safety and check valves.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 192 for filling apparatus having automatic control of flow cut-off or diversion of material to the receiver.
159, Concentrating Evaporators, subclass 44 for automatic fluid feed and discharge devices.
169, Fire Extinguishers, 7 for automatic chemical pressure generating systems, subclasses 19+ for automatic valves, 26+ for automatic receptacles, 56+ for condition responsive control for special applications.
177, Weighing Scales, 60 for material control responsive to a weigh chamber.
184, Lubrication, 66 for gravity feed lubricators with automatic cutoff.
192, Clutches and Power-Stop Control, 116.5 for automatic stop mechanism.
198, Conveyors: Power-Driven, appropriate subclasses for different types of conveyors or systems of plural conveyors having operation control means responsive to a condition of a conveyor or to a condition of the conveyed load.
209, Classifying, Separating, and Assorting Solids, 509, for automatic assorting, subclasses 491 and 496, for automatic control of discharging.
210, Liquid Purification or Separation, 97 for fluid pressure, flow or material level responsive devices which may include material feed controls, particularly subclass 101.
217, Wooden Receptacles, 100 for automatic valved bungs.
221, Article Dispensing, 9 for article dispensing devices not otherwise provided for, having automatic control means.
235, Registers, subclass 379, 380, 381, and 383 for banking and credit card systems and mechanized stores, respectively, wherein either money or merchandise is released upon the sensing of a valid credit card and including means to debit the account of the individual receiving the money or merchandise.
241, Solid Material Comminution or Disintegration, 34 for automatic feed controls associated with comminutors.
251, Valves and Valve Actuation, 15 for valves having a compulsory cut-off after a flow period initiated automatically.
414, Material or Article Handling, appropriate subclasses (e.g., 161, 270, 294+, 307, 315+, etc.) for a chamber or receptacle and material charging or discharging means therefor, and wherein the means is responsive to a condition of the chamber/receptacle, the material or the means.

This subclass is indented under subclass 52. Automatic control means applied to dispensers having either or both (1) means to jacket the material conveying conduits, or (2) means to provide a nonmaterial discharging inert atmosphere for the material to be dispensed, including means to evacuate gases from the container.
(1) Note. The inert atmosphere may be chemically inert, i.e., not reactive chemically with the material, or it may be one which is not combustible with vapors given off by the material.

SEE OR SEARCH THIS CLASS, SUBCLASS:
61 for automatic controls for a fluid pressure medium which causes material discharge, even though such fluid pressure medium provides an inert atmosphere.
152 for the means provided for in this subclass (53) without automatic control.
190 for means to humidify a dispenser receptacle or means to absorb moisture from its atmosphere.
195 209, 258, 261-263, 334, 373, 389, 394+, and 630+, for fluid flow discharge, gas agitation, or fluid pressure mediums causing discharge by acting on pumps, followers, etc., or by acting directly on material, even though the fluids used for such purposes are inert to the material being dispensed.

SEE OR SEARCH CLASS:
169, Fire Extinguishers, for means to provide inert atmosphere to smother or prevent starting of fires, particularly 66.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, 42 for preserving processes involving providing a protective layer.

This subclass is indented under subclass 52. Dispensers, in which the condition sensing means is either soluble in a liquid or is responsive to a change in temperature.

SEE OR SEARCH CLASS:
49, Movable or Removable Closures, sub- classes 1+ for a thermal control for closures.
109, Safes, Bank Protection, or a Related Device, particularly subclass 33 for fusible, combustible or thermal actuators.
119, Animal Husbandry, subclass 73 for temperature controlled watering devices.
122, Liquid Heaters and Vaporizers, subclass 504.1 and 504.3 for fusible safety devices.
126, Stoves and Furnaces, subclass 287.5 for fusible release dampers.
137, Fluid Handling, 59 for freeze condition responsive safety systems; subclasses 65+ for combustion failure responsive fuel safety cut-offs; subclasses 67+ for frangible, fusible or soluble control elements; subclasses 79+ for atmospheric temperature change responsive control; subclass 457 for thermally responsive safetycut-offs requiring reset; and subclass 468 for valves responding automatically to changed thermal condition of the fluid controlled.
160, Flexible or Portable Closure, Partition, or Panel, 1, for both thermal and soluble actuators.
169, Fire Extinguishers, appropriate subclasses, particularly subclass 42 for fusible connections, 56+ for condition responsive controls.
184, Lubrication, subclass 68 for thermostatic cut-offs for gravity feed lubricators.
220, Receptacles, subclasses 89.1-89.4 for frangible or fusible safety attachments.
236, Automatic Temperature and Humidity Regulation, which includes valves actuated by temperature responsive means and especially 12.1 for automatic mixture control by temperature or heat content.
337, Electricity: Electrothermally or Thermally Actuated Switches, appropriate subclasses for electrothermal or thermally actuated switches.
374, Thermal Measuring and Testing, 100 for a thermometer.
454, Ventilation, subclass 28 for a thermally released outlet cowl and subclass 369 for thermally actuated fire dampers used in ventilating systems.

This subclass is indented under subclass 52. Dispensers having means which responds to the volume, weight, or pressure of material already discharged without restraint on such material and correspondingly affects the discharge means employed, usually to secure uniformity of discharge regardless of varying conditions of the material as to specific gravity, etc., thus giving a constant feed from the source regardless of rate of use.

SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for dispensers having a source delivering to a receiver which is also discharging, there being means responsive to the quantity of material in the receiver to control discharge from the source thus containing a variable feed from the source due to the rate of use.
57 for dispensers controlled by the volume, weight, pressure or rate of flow of a second material.
353 437, 457, and 479, for barometric or angle of repose devices in various combinations.

SEE OR SEARCH CLASS:
19, Textiles: Fiber Preparation, 204 for regulation of the fibers fed during cleaning.
177, Weighing Scales, 116 for a weigher which cuts off the feed after a predetermined weight is accumulated in the weigh chamber.

This subclass is indented under subclass 52. Dispensers, having means controlling the rate of discharge from a source, the means being responsive to the quantity of material in a receiver which is also discharging material thus giving a variable feed from the source due to the rate of use.
(1) Note. Valved material discharge guides are included where means responsive to the pressure of the material is provided in the guide.

SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for control by volume, weight, or pressure of material delivered from dispenser thus giving a constant feed regardless of rate of use.
57 for dispenser controlled by the volume, weight, pressure, or rate of flow of a second material.
353 437, 457, and 479, for barometric or angle of repose devices in various combinations.

SEE OR SEARCH CLASS:
19, Textiles: Fiber Preparation, 204, for regulation of fibers fed during cleaning.
48, Gas: Heating and Illuminating, subclass 53.4 for float valves for carbid dispensers controlled by the liquid level in an acetylene generator.
137, Fluid Handling, 386 for level maintaining devices which may regulate inflow to a receptacle from which material is being removed.

This subclass is indented under subclass 52. Dispensers having means controlling the rate of discharge from a source, the means being responsive to the volume, weight, pressure, or rate of flow of second material, for which dispensing means may or may not be provided.

SEE OR SEARCH THIS CLASS, SUBCLASS:
55 and 56, for dispensers controlled by the volume, weight or pressure of the material dispensed.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 3 for processes of mixing under conditions of automatic control, subclasses 87.01+ for self-proportioning or correlating fluid handling systems, especially subclasses 88+ for automatic mixture control, subclass 94 for fuel control by boiler or water system condition, subclasses 98+ for self-proportioning flow systems, and subclasses 111+ for self-controlled branched flow systems comprising plural inflow branches.
210, Liquid Purification or Separation, 109 for discharge of treated material from a separator there provided for.
236, Automatic Temperature and Humidity, Regulation, 12.1, for thermal control of mixing of two fluids.

This subclass is indented under subclass 52. Dispensers
having means responsive to the weight of material in the supply container for controlling the discharge.
(1) Note. Valves or closures operated directly by material weight are not included (see note 1 to subclass 52), but movably mounted containers, self-adjusting by weight of their contents, and cut-offs interconnected to a relatively movable wall, false wall, or baffle which responds to varying weights in the container are here.

SEE OR SEARCH THIS CLASS, SUBCLASS:
332 375, 380, 387, 396, 490, and 491+, for various combinations including valves, closures, and movable nozzles directly operated by the pressure or flow of material.

SEE OR SEARCH CLASS:
137, Fluid Handling, 403 for fluid handling systems controlled by the weight of accumulated fluid.
406, Conveyors: Fluid Current, 24 and 32+ for conveyors controlled by the weight of the load in an intake receptacle.

This subclass is indented under subclass 52. Dispensers in which means responsive to rate flow causes operation of cut-off means.

SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for cut-offs operated by a selectively preset volume or rate of flow means, the selective preset being to select one from definitely different volumes or rates as distinguished from mere adjustment of the mechanism to secure accuracy.

SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons.
137, Fluid Handling, 459, 486+ and 497+ for line condition responsive valves operated by change in the rate of fluid flow in the line.
251, Valves and Valve Actuation, 15 for valves which are fluid controlled for automatic cut-off after being opened by nonautomatic means.

This subclass is indented under subclass 59. Dispensers in which the controller element is a cam which operates the cut-off at the end of a single complete revolution.

SEE OR SEARCH CLASS:
73, Measuring and Testing, for devices of this general type which are not manually tripped, but repeat their operation indefinitely for metering purposes.

This subclass is indented under subclass 52. Dispensers in which the automatic control is (1) of a dispenser utilizing a fluid under pressure to cause dispensing, or (2) of dispensers with fluid pressure discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for dispensers for dispensing gases or vapors and see the Note for the distinction between gas or vapor dispensers and gas or vapor discharge assistants.
53 and see the Notes thereto for nondispensing inert atmosphere providing means.
209 258, 261 through 263, 373, 389, 394+, for fluid pressure discharge assistants in other combinations.

SEE OR SEARCH CLASS:
137, Fluid Handling, 154 for diverse fluid containing pressure systems comprising traps for boiler feed and fluid separating traps.

This subclass is indented under subclass 61. Dispensers in which the fluid pressure medium is a liquid and the responsive means is a float, usually of lower specific gravity than one of the liquids and higher than the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:
395 for nonautomatic dispensers with a pressure liquid.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 154 for diverse fluid containing pressure systems for which the diverse fluids are liquids, and subclass 172 for fluid separating traps separating liquid from liquid.
210, Liquid Purification or Separation, subclass 119, 120 and 121+ for float controls there provided for.

This subclass is indented under subclass 52. Dispensers in which the device controlled is a motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:
333 and see the notes thereto for motor combinations not involving automatic control.

This subclass is indented under subclass 52. Dispensers having means responsive to the level of material to cause operation of some device. The material may be in a supply container, trap, passage, overflow receptacle, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:
21 for selectively preset level responsive mechanism for determining a single trapped volume.
56 for control by level in a dispensing-receiver.
62 for float controlled pressure liquids.

SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, appropriate subclasses for water closets with liquid level controls.
137, Fluid Handling, 386 for liquid levels responsive or maintaining systems.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 192 for automatic control of flow cut-off or diversion.
184, Lubrication, 103.1 for constant level lubricators.
221, Article Dispensing, appropriate subclasses for article dispensing devices not otherwise provided for including empty supply source responsive means, such devices being classified in 17 and/or 108+ of that class (221).
414, Material or Article Handling, subclass 295 and 296 for a static receptacle and means for charging or discharging the receptacle and wherein either the position of the charging means (subclass 295), or the drive of a charging conveyor (subclass 296), is responsive to the level of material in the receptacle.
431, Combustion, subclass 64 for a fuel burner having means maintaining a constant fuel level in a combustion zone.

This subclass is indented under subclass 64. Dispensers in which the level-responsive means operates to prevent manual operation of some part of the dispenser unless the material is at the proper level.

This subclass is indented under subclass 64. Dispensers having means which senses the empty condition of a supply container and prevents further operation of the discharging means or prevents the forcing of air through a metering device.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 399 for low level safety cut-offs of tanks.

This subclass is indented under subclass 64. Dispensers in which the means which respond to the level of material is a float or float operated mechanism which operates a flow controller. The flow controller may be for inlet, outlet, vent, overflow, drain, or any dispenser outlet.

SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons.
119, Animal Husbandry, 78 for float controlled watering devices.
137, Fluid Handling, 409 for float actuated valves.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 42, 199+, 212+, 216, 220+, 229, and 303 for float controls in various combinations.
210, Liquid Purification or Separation, subclass 119, 120 and 121+ for various combinations of float controls.
220, Receptacles, 216 for float type closures.

This subclass is indented under subclass 67. Dispensers having two or more outlet elements controlled by a float or two or more level responsive float mechanisms for the same trap or container. They may be for the same or different types of outlet.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 391, 411 and 423 for liquid level responsive or maintaining systems involving plural floats and/or plural float controlled passages.

This subclass is indented under subclass 67. Dispensers having a float-operated controller for a venting outlet only.

This subclass is indented under the class definition. Dispensers having a volume or rate of flow meter for determining the quantity dispensed.
(1) Note. See Lines With Other Classes and Within This Class, Volume or Rate of Flow Meters, Recorders, Registers,
in the main class definition for the general line on volume or rate of flow meters.

SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for volume and rate of flow meters with selectively preset cut-off mechanism.
23 for volume and rate of flow meters combined with a recorder, register, indicator, signal, or exhibitor.
52 for automatic control combinations, particularly subclasses 59+.

This subclass is indented under subclass 71. Dispensers having means for meter by-passing, gas separation, antisiphoning devices and/or means for priming the meter.

SEE OR SEARCH THIS CLASS, SUBCLASS:
318 for discharge assistant by-pass means.

SEE OR SEARCH CLASS:
73, Measuring and Testing, 198 for the volume or rate of flow meter subcombination.
96, Gas Separation: Apparatus, for apparatus for gas separation, per se.
137, Fluid Handling, 171 for fluid separating trap and vents in diverse fluid containing pressure systems.
138, Pipes and Tubular Conduits, 26, for pressure compensators.

This subclass is indented under subclass 71. Dispensers having means for maintaining full pressure and/or relieving excess pressure in a fluid filled hose at the outlet side of the meter (wet-hose type).

SEE OR SEARCH CLASS:
73, Measuring and Testing, subclass 276.

This subclass is indented under the class definition. Dispensers having means for supporting or guiding a movable discharge guide interconnected with means for controlling or causing discharge to prevent discharge when the guide is in nonuse position, or having actuators for switch or motor control means for dispensing mechanism interconnected with the movable material discharge guide or with an actuator for a discharge controller carried thereby.
(1) Note. Movable discharge guides which are connected to flow controllers or closures, so that when one is operated the others operate, are excluded, see subclass 537 and the notes thereto.

SEE OR SEARCH THIS CLASS, SUBCLASS:
320 for movable nozzles connected to a discharge assistant to move therewith, and see the notes thereto.
538 and see the notes thereto for miscellaneous movable discharge guides having means for housing or securing discharge guides in a position of nonuse.

SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 87 for interlocks.
137, Fluid Handling, subclass 355.16 for combined hose holders and fluid supplies, especially subclass 355.18 in which hose movement controls flow of fluid.
192, Clutches and Power-Stop Control, 116 for power stop interlocks.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 195 for spraying and discharging devices having combined therewith hose holders and fluid supplies, especially subclass 196 in which movement of the hose controls fluid flow.
242, Winding, Tensioning, or Guiding, 370 for a reeling device which may wind various materials including a hose.
248, Supports, 75 for hose and/or nozzle type supports.

This subclass is indented under subclass 74. Dispensers having connections or interlocks between a switch or motor control and an actuator for a discharge controller carried by a movable material discharge guide.

This subclass is indented under the class definition. Dispensers combined with weighing mechanism.
(1) Note. This is the residual subclass involving weighing. For weighing means in other combinations, the preceding subclasses should be considered.

SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for constant weight control by output.
57 for control by weight of a second material.
58 for automatic control by weight of the material in the supply container.

SEE OR SEARCH CLASS:
177, Weighing Scales, 60 for weigh pan responsive control of filling, or both filling and emptying, of the weigh pan; subclasses 145+ for a weigher having loading or unloading means; and subclasses 161+ for a weigher having a load guide.

This subclass is indented under the class definition. Dispensers where features of external configuration simulating some object are claimed.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 24 for article dispensing devices not otherwise provided for and having external configurations simulating other things.
280, Land Vehicles, 827 for velocipedes having means to simulate other things.
446, Amusement Devices: Toys, 268 for a figure toy which may include a dispenser; and subclass 475 for other
dispensing toys.

This subclass is indented under subclass 78. Dispensers made in simulation of a fire-arm.
(1) Note. The so-called "gun-type" dispensers are not here, even though they may have pistol type grips or other individual features simulating fire-arms. This subclass takes those devices which in their entirety simulate fire-arms, e.g., water guns.

SEE OR SEARCH CLASS:
42, Firearms.
89, Ordnance.
124, Mechanical Guns and Projectors, subclass 55, for a projector that impels a puff of gas.
362, Illumination, subclass 112, for imitation firearm type flash lights.

Dispensing devices claimed in combination with a punch or a cutter. The cutter or punch must be combined with dispensing features, or claimed in combination with a dispenser.
(1) Note. In this subclass are placed patents where the cutter or punch does not form a dispensing opening. Where two or more cutters or punches are provided and at least one forms a dispensing opening, see the subclasses below.
(2) Note. The punch or rupturing means does not have to function by cutting but may operate to knockout previously weakened portions or frangible closures.
(3) Note. See Lines With Other Classes and Within This Class, Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices, in the main class definition for related art in other classes involving hollow needles for puncturing a receiver of material dispensed and other dispensers associated with means to cut or puncture that which receives dispensed material.

SEE OR SEARCH THIS CLASS, SUBCLASS:
85 and 87, for devices in which a nondispensing opening is
formed in addition to forming a dispensing opening.
345 for devices which strike off or level the charge in a conveyor type trap chamber, even though such device is designated a cutter.
544 for discharge controllers not having an edge sharpened to cut off the dispensed material.

SEE OR SEARCH CLASS:
30, Cutlery, subclass 2 for carton openers and subclass 6.3, for can openers including means for forming a material guide in connection with the opening, and see the notes to the main class and subclass definitions of Class 30 for the search field on cutting processes, implements and machines.
83, Cutting, appropriate subclasses, for a cutting or punching device, and particularly subclass 660.
220, Receptacles, subclass 278, where the punch also serves as or is carried by a closure for the puncture, and there are no dispensing features (e.g., nozzles or pouring lips).
248, Supports, 216.1, for brackets with support penetrating means.
408, Cutting by Use of Rotating Axially Moving Tools, 199 for augers adapted to form dispensing openings in barrel-heads or bottle corks, when no dispensing feature is claimed.
414, Material or Article Handling, subclass 412, as explained in the reference thereto appearing in Lines With Other Classes and Within This Class, Puncturing Injectors and Other Nozzles, Spouts, and Pouring Devices, in the definition of this class (222).

This subclass is indented under subclass 80. Dispensers in which at least one cutter or punch is designed to form a dispensing opening in the container which holds the material to be dispensed.
(1) Note. Devices for dispensing gases are not included in this subclass and the indented subclasses. Such devices have been set up as a special group in preceding subclasses 3+.

SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for gas pressure reservoirs, per se, combined with a cutter or punch to form an opening for dispensing the gaseous
contents. (See (1) Note.).

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 15.14 for a process of tapping a pipe or tank (e.g., gas main, water main, keg, etc.) having an aperture forming cutter or cutting tool, or subclass 318 for tapping a pipe, keg, or apertured tank under pressure using aperture forming means.
221, Article Dispensing, 30 for article dispensers not otherwise provided for, including cutter or punch means for forming openings in supply containers or in the wrapper thereof.
401, Coating Implements With Material Supply, 132 for hand manipulated applicators of general utility having a tool, and a container for the material which must be ruptured in order that the material may be available to the tool.

This subclass is indented under subclass 81. Dispensers having discharge assistant means to discharge the contents of the container in which the opening has been formed.

SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for definitions of "discharge assistant" and various types thereof, and see the notes to such subclasses for the location of the other combinations and subcombinations involving such means.

This subclass is indented under subclass 81. Dispensers having at least one cutter or punch mounted movably relative to other portions of the structure with which it is associated so that it may be moved relative to such associated structure to perform its cutting or punching operation.
(1) Note. The cutter or punch may be a permanent part of the receptacle whose contents are to be dispensed, as by being permanently mounted on or within the receptacle, or it may be a part of a device separate from the receptacle and movable relative to other parts of such separate device.
(2) Note. Where there are cutters or punches for forming
plural openings, the relatively movable cutter or punch may be either the one for cutting the dispensing opening, or for cutting, venting and/or mutilating openings.

SEE OR SEARCH THIS CLASS, SUBCLASS:
85 for other devices for forming plural openings, where none of the devices are mounted for relative motion.

This subclass is indented under subclass 83. Dispensers having a sleeve or rest into or on which the receptacle to be cut is placed.

SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for similar devices with nonmovable cutters for cutting plural holes.
88 for sleeves and/or rests combined with cutters.

This subclass is indented under subclass 81. Dispensers in which two or more distinct apertures are formed in the container whose contents are to be dispensed by the cutting or punching operation.
(1) Note. Where plural cutters or punches cooperate together to form a single aperture, the patent is not in this or the indented subclass but in other appropriate subclasses of this group.
(2) Note. Where plural cutters or punches which are alternatively usable but the organization and arrangement thereof is such that they are not operable on the same receptacle to form plural openings, the patent is not in this or the indented subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:
83 for plural devices in which at least one is mounted for relative motion.

This subclass is indented under subclass 85. Dispensers having a sleeve or a rest into or on which the receptacle to be cut is placed.
(1) Note. The sleeve or rest is ordinarily associated with a funnel or nozzle.

SEE OR SEARCH THIS CLASS, SUBCLASS:
83.5 for similar devices with one or more relatively movable cutters.
88 for such devices having means to cut a single opening.

This subclass is indented under subclass 81. Dispensers having means for mutilating by cutting, crushing, or otherwise destroying the container, usually to prevent reuse.

SEE OR SEARCH THIS CLASS, SUBCLASS:
80 for cutters for preventing reuse where no dispensing outlet is formed.
85 for cutting of openings in addition to the dispensing opening including openings to prevent reuse.

This subclass is indented under subclass 81. Dispensers in which there is a sleeve or rest into or on which the receptacle to be cut or punched is placed.

SEE OR SEARCH THIS CLASS, SUBCLASS:
83.5 for similar devices with one or more relatively movable cutters.
86 for such devices for cutting plural openings and see the notes appended thereto.

This subclass is indented under subclass 81. Dispensers in which there is a nozzle associated with a cutter or punch, and in which there is means to secure the nozzle to the receptacle whose contents are to be dispensed.
(1) Note. Mere friction fit is excluded for which see other appropriate subclasses of this group.

SEE OR SEARCH THIS CLASS, SUBCLASS:
567 for such attaching means without an associated cutter or punch.

SEE OR SEARCH CLASS:
285, Pipe Joints or Couplings, 18 for couplings combined with assembly means, especially subclass 40 for a coupling comprising thread cutting means, and subclasses 189+ for end-to-plate joints, especially subclass 193 for a joint between a faucet and plate.

This subclass is indented under subclass 89. Dispensers in which that portion of the nozzle which extends within the receptacle whose contents are to be dispensed has associated with it a part which extends beyond the nozzle wall to engage or abut the inner side of the wall of the receptacle to hold the nozzle in place.

SEE OR SEARCH THIS CLASS, SUBCLASS:
91 where the only inner wall surface engaging means is a screw helix.
569 for similar mounting means without a cutter.

SEE OR SEARCH CLASS:
285, Pipe Joints or Couplings, subclass 191 for an end-to-plate coupling with means holding the members together comprising a bolt or hook in the flow.

This subclass is indented under subclass 89. Dispensers in which the means for securing the nozzle to the receptacle is
of the screw type.
(1) Note. The screw helix may only partially surround the part which is inserted through the opening in the receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:
568 for such securing means without a cutter or punch.

This subclass is indented under the class definition. Dispensing devices in which one or more walls of the material container are made of nonresilient material which will deform (collapse) when pressure is applied thereto and will not return to its initial position.
(1) Note. Where characteristics of the collapsible wall or characteristics, of other parts of the combination which are present because of the collapsible wall are not claimed, the patent is not in this or the indented subclasses, but in the subclasses following this group, even though the container is broadly identified in the claims as a collapsible wall type.
(2) Note. This group of subclasses takes patents wherein the outer walls are collapsible as defined in the subclass definition. Internal collapsible members (as followers) are not included.
(3) Note. Tube deflating means comprising force exertive means applied to the exterior portions of the tube are here included as collapsible wall type receptacles.

SEE OR SEARCH THIS CLASS, SUBCLASS:
206 for resilient wall type dispensers, even though the actual wall structure is collapsible if means for returning the wall structure to its initial position is provided.
386.5 for collapsible wall followers. See (2) note.

SEE OR SEARCH CLASS:
29, Metal Working, 17.1 for sheet metal and foil manufacturing; and subclasses 400.1+ for miscellaneous processes of making hollow articles.
72, Metal Deforming, appropriate subclasses for a method or machine for making a metal tube or cup from a single-piece blank, particularly subclass 267 for "impact extrusion" and subclasses 347+ for "deep drawing".
92, Expansible Chamber Devices, 89, for collapsible wall expansible chamber devices.
138, Pipes and Tubular Conduits, appropriate subclasses for mere tubular conduit structures not disclosed as dispensing containers and not involving any other dispensing features. For a statement of the line, see the reference to Class 222 in the Search Class note to the class definition of Class 138.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 327 and 328 for a sprinkling or spraying device comprising a supply holder with resilient or collapsible walls.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 65 for tube deflation accomplished by drawing a vacuum on the interior of the tube to deflate same where other necessary characteristics of Class 141 are present.
220, Receptacles, appropriate subclasses for collapsible container subcombinations, per se, not involving characteristics of the collapsible walls and not involving other dispensing features. See (1) Note to the definition of this subclass, above.
221, Article Dispensing, subclass 64 for article dispensers having flexible supply container walls and in subclass 65 for such dispensers having collapsible or telescoping supply container wall structure.
229, Envelopes, Wrappers, and Paperboard Boxes, for paper container subcombinations not involving characteristics of collapsible walls and not involving dispensing features at present classified in Class 229. Certain subclasses (such as subclass 7 and 17) of Class 229 contain dispensers and structures of the nature of the types now retained in that class (229) are classified in those subclasses.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes, appropriate subclasses for processes of molding or shaping plastic materials, within the class definitions, to produce collapsible wall tubes. For specific subclasses pertaining to production of hollow articles, see subclass 150,171.26+ 209.1+, 267+, 312, 512+, and 523+.
401, Coating Implements With Material Supply, appropriate subclasses, for an implement comprising a collapsible wall type reservoir in combination with a coating tool; and see (4) Note to the definition of subclass 143 of that class (401).
417, Pumps, appropriate subclasses for collapsible wall type pumps.
418, Rotary Expansible Chamber Devices, subclass 45 for a rotary expansible chamber device having a collapsible
progressively deformed working chamber wall.
493, Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web, 269 for making a tube from a sheet or web.

This subclass is indented under subclass 92. Dispensers having means to support or hold articles in addition to the collapsible wall receptacle.

This subclass is indented under subclass 92. Dispensers in which (1) two or more receptacles are claimed in combination and/or (2) a receptacle having plural compartments is claimed.

SEE OR SEARCH THIS CLASS, SUBCLASS:
129 for other plural receptacle or plural compartment receptacles.

This subclass is indented under subclass 92. Dispensers having means other than or in addition to mere manual squeezing or gravity flow to assist or cause discharge of the receptacle contents.
(1) Note. The majority of such means act on the wall structure to collapse the same. Some patents, all in this subclass (95), do not act on the wall structure, such as pumps, with the receptacle connected to the intake, atmosphere pressure causing collapse of the wall, and receptacles having a material follower therewithin, the walls being collapsed by hand.

SEE OR SEARCH CLASS:
401, Coating Implements With Material Supply, subclass 152 and indented subclasses 153, 154, and 155 for a hand manipulated coating device with material supply and a reservoir which has a nonresilient deformable wall or wall
portion, the implement being provided with means to deform or collapse the wall or wall portion to force material to the tool from the reservoir.

This subclass is indented under subclass 95. Dispensers having means interconnected with the wall collapsing means for operating the valve or other discharge outlet flow controller or closure.

SEE OR SEARCH THIS CLASS, SUBCLASS:
544 and see the search notes for other valve and closure operators in this class.

This subclass is indented under subclass 95. Dispensers having at least two means of different types for acting on the receptacle wall to collapse same.
(1) Note. In this subclass, for example, and combined winding type and clamping type.

SEE OR SEARCH THIS CLASS, SUBCLASS:
95 or other appropriate type subclass, for plural wall collapsing means of the same type.

This subclass is indented under subclass 97. Dispensers having both the winding type of wall collapsing means as defined in subclass 99 and the roller type as defined in subclass 101.

This subclass is indented under subclass 95. Dispensers having an element which causes the tube wall to collapse and
wind up into roll form.
(1) Note. These devices generally have an element (frequently called a key) to engage the closed end of the receptacle and a handle to turn the same to perform the winding operation. It may be either separable or built into the receptacle structure.

This subclass is indented under subclass 99. Dispensers claiming (1) a casing to enclose the receptacle in whole or in part and/or (2) means to support the receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:
95 through 98, 101 through 105, to complete the search on support or casing combinations since the patents in such subclasses have not been cross-referenced on this combination.
160 for movably mounted receptacles of other types and see the notes to such subclasses.
173 for other types of receptacles with casing or support and see the notes to such subclasses.

SEE OR SEARCH CLASS:
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 351 for receiver actuated discharge means.
248, Supports, 108 for supports for paste-tubes.

This subclass is indented under subclass 95. Dispensers in which the wall collapsing means comprises a roller which rolls over and applies pressure to the wall of the receptacle to cause the same of collapse and the contents to be forced out.
(1) Note. The rolling element may be of spherical or other noncylindrical form, and/or of irregular surface configuration.

This subclass is indented under subclass 101. Dispensers having more than one roller.

This subclass is indented under subclass 95. Dispensers in which the wall collapsing means operates by moving transversely against the receptacle wall to collapse the same by a clamping action.
(1) Note. The pressure applying elements may have motion longitudinally of the receptacle from the closed end toward the outlet in addition to the clamping motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for those devices operating by a sliding motion only.
101 for slidable rollers.

This subclass is indented under subclass 95. Dispensers in which the wall collapsing means operates by twisting the collapsible walls.

This subclass is indented under subclass 92. Dispensers claiming (1) a casing to enclose the receptacle in whole or in part and/or (2) means to support the receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:
100 and see the notes thereto for the complete field of search.

This subclass is indented under subclass 92. Dispensers claimed in combination with features other than the receptacle structure and not provided for above.
(1) Note. Receptacle structure includes handles and/or handgrips, inlets and/or outlets and their valves, feed controllers and/or closures.

SEE OR SEARCH THIS CLASS, SUBCLASS:
192 and the subclasses preceding it in the schedule for combinations as defined in this subclass (106) where the receptacle is other than the collapsible wall type.

This subclass is indented under subclass 92. Dispensers in which the walls are made, at least in part, of nonmetallic material. The nonmetallic material may be a coating.

SEE OR SEARCH THIS CLASS, SUBCLASS:
100 and the other subclasses noted for casings in addition to the collapsible wall receptacle and which may be of nonmetallic materials.
215 for resilient, nonmetallic wall receptacles.

SEE OR SEARCH CLASS:
229, Envelopes, Wrappers, and Paperboard Boxes.

This subclass is indented under the class definition. Dispensers in which means are provided to catch or otherwise dispose of material dripping, leaking, or being discharged as waste material.
(1) Note. By drip, leakage or waste is meant material which escapes to the exterior of a dispenser and which is not caught or received by the intended receiver, including condensate.
(2) Note. See Lines With Other Classes and Within This Class, Drip Leakage or Waste Catchers, in the main class definition for a general statement on drip, leakage, or waste catchers, and for notes to other classes having related art.

SEE OR SEARCH THIS CLASS, SUBCLASS:
571 for antidrip nozzle, spout, or pouring device structure.

SEE OR SEARCH CLASS:
137, Fluid Handling, 312 for leakage or drip collecting in fluid handling systems.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 364 for a filling supply of dumping or draining type supported upon a receiver and see the search notes there included.

This subclass is indented under subclass 108. Dispensers having one or more passages formed for the special purposes of returning the drip, leakage, or waste to the dispensing receptacle interior from which it escaped.

SEE OR SEARCH THIS CLASS, SUBCLASS:
118 for material return to supply from an independent receiver.
318 for material return to supply from a discharge assistant.
424 for miscellaneous combinations involving material return to supply.

This subclass is indented under subclass 109. Dispensers having a valve controlling the return passage.

This subclass is indented under subclass 109. Dispensers having a cover which may be moved to expose some or all of the operating parts of the dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
182 for other patents having the feature.

This subclass is indented under the class definition. Dispensers having either, or both, (1) an illuminating means, or (2) a fuel burner which may be for either heating or illuminating purposes.

SEE OR SEARCH THIS CLASS, SUBCLASS:
131 where a jacket about a dispenser provides for heat exchange, there being no burner.
146 for miscellaneous heating and cooling means not having a burner.

SEE OR SEARCH CLASS:
110, Furnaces, subclass 260 for a solid fuel furnace provided with a fluid fuel burner.
126, Stoves and Furnaces.
137, Fluid Handling, 335 for burners for heating material in fluid handling systems.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 18 for illuminated fountains, and subclasses 128+ for heating means for the spray apparatus of spray fluid.
362, Illumination, appropriate subclasses for other combinations of illuminator with other devices.
431, Combustion, appropriate subclass for a fuel burner, per se.

This subclass is indented under the class definition. Dispensers in which (1) the dispensing container is provided with a plurality of separate compartments at least one having dispensing means, (2) two or more containers are claimed in combination, at least one being a dispensing container, or (3) a dispensing container has a jacket surrounding the same and spaced therefrom, at least in part, to provide a material or article receiving space.
(1) Note. Under (3) the jacket is usually provided for heat exchange purposes.
(2) Note. One or more devices arranged in series with the supply chamber, or with each other so that in the normal dispensing operation the material passes from one to the next in series to be discharged from the last of the series, are not in this subclass (129) or the indented subclasses, but are in subclasses following in the schedule, unless there is also claimed the subject matter of this subclass (129). Such series devices may be a discharge assistant, trap chamber, removable discharger, nozzle, etc.
(3) Note. The combination of plural dispensing compartments (one of which is a fluent material dispenser) is provided for in Class 221, Article Dispensing, and is classifiable in that class in subclass 96, thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:
6 for parallel connected gas or vapor dispensing devices serially used.
57 for automatic control of one dispensed material by the weight, volume, or pressure of a second dispensed material.
94 for plural receptacle or compartment devices of the collapsible wall type.
100 and 105, and the subclasses set forth in the Notes to the definitions, for collapsible wall type receptacles having casings, some of which are of the spaced jacket type.
188 for dispensers with a fluid trap seal for an inlet and/or outlet.
399 for gas pressure supplying reservoirs for fluid pressure dispensers.

SEE OR SEARCH CLASS:
53, Package Making, 147 for apparatus to form groups of contents units and to subsequently package same.
122, Liquid Heaters and Vaporizers, subclass 401 for chemical feeders for boiler cleaners.
137, Fluid Handling, 3 for processes of controlling mixtures; subclasses 87.01+ for apparatus for automatically controlling plural flows, especially subclasses 88+ for mixture condition maintaining or sensing controls; subclasses 111+ for plural inflows in branching systems; subclass 127 for sequentially parallel siphoning from plural tanks; subclass 240 for addition of separate material for cleaning purposes; subclasses 255+ for plural tanks or compartments with parallel inflow and/or outflow; subclass
268 for holders for solid, flaky or pulverulent material to be dissolved or entrained in the fluid; subclass 387 for washing machine cycle control by liquid level; subclasses 561+ for distribution systems, especially subclass 565.29+ for plural pump systems; subclasses 594+ for systems having plural noncommunicating flow paths; subclasses 597 and 602+ for systems having multiple inlets and multiple and single outlets respectively.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 9 and 100+ for processes of and apparatus for filling with plural materials.
169, Fire Extinguishers, particularly 14, 27 and 71+ for such subject matter involving plural sources.
177, Weighing Scales, subclass 61 for a weigh chamber translatable among plural sources.
210, Liquid Purification or Separation, subclass 101 for flow, fluid pressure or material level proportionate feed means, and subclasses 198.1+ for means to add treating material to a separator.
221, Article Dispensing, 92 for article dispensing having plural sources, stacks or compartments, and see (3) Note, above.
236, Automatic Temperature and Humidity Regulation, 12.1.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 656 for a device for scattering or strewing nonfluid material over an extended area and comprising plural containers for the material feeding to a single scatterer.
406, Conveyors: Fluid Current, 117 for fluid current conveyors having plural intakes.

This subclass is indented under subclass 129. Dispensers for supplying a mixed beverage, comprising a cabinet or counter associated installation, plural sources of supply for the ingredients of the beverage, and means for dispensing the constituent parts of a single drink and intermingling such parts, within the apparatus, either before or during discharge.
(1) Note. These subclasses are limited to drink mixers as an art collection, as distinguished from dispensers for other materials, since the special problems of temperature conditioning, sanitation, attractive housing and ingredient mixing led to the development of peculiar associations of
subcombinational features which appear best classified together. As examples, patents included in this group include claimed disclosures of heat exchange or cooling means (Classes 62 and 257), cabinet structures (Class 312) mixing nozzle means (Classes 137 and 299), and other fluid handling systems of the types classified in Class 137 and in later subclasses of Class 222.

SEE OR SEARCH THIS CLASS, SUBCLASS:
145 for dispensers having plural material sources in which the plural materials are dispensed from a single, common discharge outlet, but not having the cabinet or counter associated installation required for classification in this subclass.
146 for dispensers having heating or cooling means, and see the search notes to that subclass for other related search fields.
173 for dispensers having supports, casings, etc., and see the search notes thereto.

SEE OR SEARCH CLASS:
62, Refrigeration, appropriate subclasses, particularly subclass 336, 338+ and 389+ (particularly subclass 390), and see the reference to Class 62 in the class definition, References to Other Classes, in this class (222).
99, Foods and Beverages: Apparatus, subclass 275 for similar beverage making and mixing combinations including specific material treatment means, as carbonating or cooking.
137, Fluid Handling, 170.5 for drink dispensing of the type involving foam control in handling gas charged liquids; subclass 263 for a tank or trap receiving flowable material from at least two tanks or compartments; subclass 268 for holders having a supply of solid, flaky or pulverized material to be dissolved or entrained; subclasses 571+ for fluid handling systems comprising serial flow tanks or compartments; subclasses 583+ for fluid handling systems having plural openings, one a gas vent or access opening; subclasses 602+ for fluid handling systems having multiple inlets and a single outlet, especially subclasses 888+ and 896+ for those with means for mixing or combining plural diverse fluids.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 174 for drink dispensers combined with cup dispensers, and subclasses 105+ for those having plural materials which are discharged through a common outlet.
165, Heat Exchange, subclass 75 for a coil in an enclosure with a removable cover giving access to the space about the
coil; and subclasses 140+ for a device providing heat exchange between three or more noncommunicating fluids.
239, Fluid Sprinkling, Spraying, and Diffusing, appropriate subclasses, especially 302, 398+ and 549 for spray apparatus or nozzles which mix and then discharge plural materials.
312, Supports: Cabinet Structure, appropriate subclasses for cabinet structures not involving specific fluid dispensing means.
366, Agitating, for dispensers including mixed drink cabinet type dispensers having agitating means of the type classifiable in Class 366. The line between Classes 222 and 366 is set forth in Lines With Other Classes and Within This Class in the class definition of Class 366.

This subclass is indented under subclass 129.1. Dispensers in which the pressure of one of the constituent materials or energy derived from the flow thereof is instrumental in causing the dispensing or feeding of another material.

SEE OR SEARCH THIS CLASS, SUBCLASS:
57 for dispensers in which the rate of discharge from a source is automatically controlled in response to the volume, pressure or rate of flow of a second dispensed material.
133 for dispensers from plural sources in which there is a measured discharge from one source and indeterminate flow to another. In these devices the flow of one material is often instrumental in causing measured discharge of the other.

This subclass is indented under subclass 129.1. Dispensers having means for delivering metered or predetermined amounts of one or more of the constituent materials of the beverage.

SEE OR SEARCH THIS CLASS, SUBCLASS:
133 for dispensers from plural sources in which there is a measured discharge from one source and indeterminate flow from another.

This subclass is indented under subclass 129.3. Dispensers in which there are means for the metered dispensing of more than one of the constituents of a single mixed drink.

SEE OR SEARCH THIS CLASS, SUBCLASS:
135 for plural source dispensers having a discharge assistant for each source which may measure the quantity dispensed from each source at every operation or cycle of the apparatus.
145.1 for plural source dispensers in which the plural materials are discharged from a common discharge outlet which may have provision for discharging measured quantities of more than one of the plural materials.

This subclass is indented under subclass 129. Dispensers having at least one compartment, container, or spaced jacket which is not for dispensing.
(1) Note. The spaced jackets here are usually for heat exchange purposes or for receiving insulating material.
(2) Note. The additional containers or compartment here is usually for storing materials or articles and have nondispensing means associated therewith including exhibiting samples.
(3) Note. For plural receptacles or receptacles having plural compartments, none of the dispensing type, see the appropriate receptacle class.

SEE OR SEARCH THIS CLASS, SUBCLASS:
108 for compartments to catch waste leakage or drip.
182 where the nondispensing compartment merely houses or encloses some or all of the operating parts of the dispenser.
325 for discharge assistant associated with a compartment, container or jacket which is solely for receiving a separable material supply container or cartridge.
538 where a nondispensing compartment is provided solely to house a discharge guide in a position of nonuse.

SEE OR SEARCH CLASS:
62, Refrigeration, 389 for a withdrawable liquid cooler having means specialized to cooling, particularly subclass 400 for a concentric ice holder and liquid container.
150, Purses, Wallets, and Protective Covers, particularly 112 for plural compartment type.
190, Trunks and Hand-Carried Luggage, there being many patents on plural compartment types, see particularly 3, 29+, and 109+.
215, Bottles and Jars, subclass 6 for plural compartment type.
217, Wooden Receptacles, appropriate subclasses, for those having plural compartments, particularly 7.
220, Receptacles, 600 for compartment type.
221, Article Dispensing, 97 for article dispensers having similar compartment arrangement.
312, Supports: Cabinet Structure, substantially all types of which may involve plural compartments, 118 being of the stock and sample showcase type.
383, Flexible Bags, 38 for plural compartment type.

This subclass is indented under subclass 130. Dispensers in which the nondispensing compartment or receptacle is a jacket or double wall spaced from a dispensing container wall, usually for heat exchange or insulation.

SEE OR SEARCH THIS CLASS, SUBCLASS:
152 for conveying conduits with spaced jackets.
182 where the actuating parts of a dispenser are enclosed, and a cover therefor may be moved to expose the same.
183 for dispensers having jackets not spaced.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 375 for fluid handling systems having jacketed parts, in which the jackets may or may not be spaced form the jacketed part.
165, Heat Exchange, subclass 141 and 154+ for a receptacle
having spaced jackets for heat exchanging mediums.
215, Bottles and Jars, 12.1 for spaced wall or jacket devices.
220, Receptacles, 23.87, 560.1, 592.15, and 592.23, for receptacles having inner and outer containers; subclasses 62.11+ for a receptacle having a wall that has a plurality of distinct layers; subclasses 23.91 and 903 for a receptacle having a jacket; and subclasses 560.12+, 592.09+, and 592.2+ for insulated receptacles.
221, Article Dispensing, subclass 286 for article dispensers having spaced casing structures included therewith.
312, Supports: Cabinet Structure, 35 for magazine type article retaining cabinets, and other appropriate subclasses, for miscellaneous cabinet structures where no combination with bulk dispensing means is claimed.
366, Agitating, subclass 149 for an agitator with a spaced jacket.

This subclass is indented under subclass 129. Dispensers having at least three sources of supply or supply containers which are not duplicates as to the manner of discharging or supplying material.

This subclass is indented under subclass 129. Dispensers having provision for the discharge of a measured quantity from one source of material and an indeterminate or unlimited discharge from another.
(1) Note. The materials are usually intermingled after discharge.
(2) Note. For other combinations involving this character of operation, see the notes to other classes appended to subclass 129 of this class.

This subclass is indented under subclass 129. Dispensers having means for varying the discharge from the plural sources interconnected for uniform or proportional variations in each of the discharging volumes.

SEE OR SEARCH THIS CLASS, SUBCLASS:
267 for single sources of supply having sets of discharging assistants with common discharge volume varying means.
282 for single discharge assistants with discharge volume varying means.
434 for trap chamber cut-off combinations with trap chamber volume varying means.
482 for single supply containers having plural openings with flow controllers or closures for at least two of the openings.

SEE OR SEARCH CLASS:
137, Fluid Handling, 87.01 for self-proportioning or correlating fluid handling systems.

This subclass is indented under subclass 129. Dispensers having a discharge assistant in connection with each source. Two or more may or may not be duplicates, or a single assistant or trap may act on the material from two or more sources.

SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for definitions of "discharge assistant" and see the notes thereto for the location of such means in other combinations.

SEE OR SEARCH CLASS:
19, Textiles: Fiber Preparation, 145 involving assembling of different materials.
111, Planting, subclass 73 and 80 for depositing plural materials.
221, Article Dispensing, 123 for plural source article dispensing devices having discharge means for each source.
239, Fluid Sprinkling, Spraying and Diffusing, subclass 656 for plural containers holding nonfluid material and a single
means to scatter or strew the material, with a discharge assistant for each container to force or deliver the material to the scattering or strewing means.

This subclass is indented under subclass 135. Dispensers having a discharge assistant in which the same structure acts on material from all sources, the material either contacting the discharge assistant on opposite faces or at different points, or inlets, but the material from all sources following the same path in or through the discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
139 where there are more than one common rotary or swinging material contacting elements even though they are interconnected structurally to operate as a unit.

SEE OR SEARCH CLASS:
221, Article Dispensing, 126 for article dispensers having plural sources of articles to be dispensed and common selector means for the actuation of the discharging means for the plural sources.

This subclass is indented under subclass 135. Dispensers having unitary discharge assistants, in which those portions which contact the material dispensed have a reciprocating motion (i.e., do not rotate or swing about an axis) and which unit acts on material from all sources.
(1) Note. By "unitary discharge assistants" is meant those structures which are so interconnected structurally by means other than or in addition to relatively moving operating means as to both prevent relative motion and compel motion together.

SEE OR SEARCH THIS CLASS, SUBCLASS:
361 and see the notes thereto for other combinations having reciprocating trap chambers or discharge assistants.

This subclass is indented under subclass 135. Dispensers in which that portion of a discharge assistant for each source which contacts the material discharged has either a rotary or a swinging motion about an axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:
136 for such devices in which a rotary or swinging assistant is common to all sources.
361 and 367+, and see the notes thereto for other combinations having rotary and swinging trap chambers and discharge assistants.

This subclass is indented under subclass 138. Dispensers having a common axis for the discharge assistants.

This subclass is indented under subclass 139. Dispensers in which the axis is substantially vertical.

This subclass is indented under subclass 140. Dispensers having the portions of the discharge assistant forming the discharge paths for the materials lying in substantially the same plane.

This subclass is indented under subclass 138. Dispensers having the axes of the discharge assistants parallel.

This subclass is indented under subclass 129. Dispensers in which the plural supply compartments are adapted to be supported together in the hand and shaken to cause material to move through an outlet.
(1) Note. See class definition, Lines Wtih Other Classes and Within This Class, Hand Manipulable Shakers.

This subclass is indented under subclass 142.1. Dispensers in which the position of the plural supply compartments relative to one another or relative to a casing which supports and/or partially encloses both compartments must be altered in order to dispense from one of the compartments.

SEE OR SEARCH THIS CLASS, SUBCLASS:
144 for rotatably mounted assemblies of dispensing compartments, not of the hand shaker type.
160 for single supply containers movable supported with reference to a base or casing.

This subclass is indented under subclass 142.1. Dispensers in which the supply compartments are containers mounted upon a common base or within a common casing from which they all may be separated either together as a unit or individually.
(1) Note. This subclass does not include dispensers having plural containers in which one container supports another separably but there is no base or casing from which both are removable. The inner container in the subject matter of subclass 142.5, for example, is frequently supported by and separable from the outer coaxial container.
(2) Note. Each of the containers continues to be a container after removal from the common base or casing, i.e., each still has a bottom and sidewalls.

SEE OR SEARCH THIS CLASS, SUBCLASS:
142.5 see (1) Note.
179.5 for single dispensers separable from base or casing for use.

This subclass is indented under subclass 142.1. Dispensers in which the outlets of the supply compartments are in such position relative to one another or the internal structure of the compartments is such that the outlet from which material is dispensed is determined by orienting the container assembly relative to the direction of fall of the material to be dispensed from the selected container.
(1) Note. Closures for the individual outlets may be provided, but they are not essential to the restriction of flow from the unselected source.

This subclass is indented under subclass 142.1. Dispensers in which plural containers or supply compartments are arranged one within the other about a common axis so that one container surrounds the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:
142.2 for this subject matter where the containers are movable relative to one another for selecting the source of material to be dispensed.

This subclass is indented under subclass 142.1. Dispensers in which opening movement of the outlet element of one compartment causes or insures closing of the outlet of the other compartment, either because there is a single closure, including plural closures rigidly connected, for the plural outlets or because relatively movable closures are interconnected to operate selectively.

SEE OR SEARCH THIS CLASS, SUBCLASS:
144.5 for similar organizations in nonshaker type dispensers.

This subclass is indented under subclass 142.6. Dispensers in which the plural compartments have closures movable relatively to one another and a single element, which is usually an actuator or a biasing means (or both), operably connected to both closures.

This subclass is indented under subclass 142.6. Dispensers in which a unitary or integrally connected closure member is movable as a whole in a straight line across the outlets of the several compartments.

SEE OR SEARCH THIS CLASS, SUBCLASS:
559 for reciprocating flow controllers or closures for single chamber dispensers.

This subclass is indented under subclass 142.6. Dispensers in which a unitary or integrally connected closure member is movable in rotation about an axis extending in the direction toward which the outlets of the several compartments open.

SEE OR SEARCH THIS CLASS, SUBCLASS:
142.5 for this subject matter where the several compartments are coaxial or concentrically arranged.
548 for rotary discharge controllers or closures for single chamber dispensers.

This subclass is indented under subclass 129. Dispensers having features of construction specially designed to permit of either stacking the receptacles one on another or placing
plural receptacles alongside one another in the minimum of space.

SEE OR SEARCH THIS CLASS, SUBCLASS:
173 for single dispensers with jackets.

SEE OR SEARCH CLASS:
206, Special Receptacle or Package, subclasses 499-520 for container nesting and stacking means.

This subclass is indented under subclass 129. Dispensers in which the plural receptacles or compartments are mounted to rotate as an assembly.

SEE OR SEARCH THIS CLASS, SUBCLASS:
167 and see the notes thereto for rotatably mounted single sources.

SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 109 for compartmented or pocketed rotary devices and subclasses 127+ for combinations of two or more rotary drums or receptacles.
211, Supports: Racks, subclass 77 and 78 for rotatable receptacle support racks.
221, Article Dispensing, subclass 113 and 119+ for plural source article dispensing devices in which the plural sources are rotatably mounted.

This subclass is indented under subclass 129. Dispensers having means common to a plurality of the sources, compartments, or containers, to dispense selectively from one or more of said sources, compartments or containers.

SEE OR SEARCH THIS CLASS, SUBCLASS:
133 for similar selecting means combined with structure for delivering a measured quantity from one of the sources of material, and an indeterminate quantity from another, or
selectively from one of the sources.
142.6 for this subject matter where the plural chambers are of the hand manipulable shaker type.

With common discharge:
This subclass is indented under subclass 129. Subject matter wherein the plural sources, compartments or containers each have an individual feed path for feeding materials from the sources, compartments or containers and wherein the individual feed paths empty into a common feed path leading to a common outlet.

SEE OR SEARCH CLASS:
137, Fluid Handling, 602 for a distribution system having plural inlets and a single outlet.
221, Article Dispensing, subclass 133 for an article dispenser having plural sources, stacks or compartments for the article to be dispensed and a common egress outlet for all of such sources, stacks or compartments.

Including discharge path cleaning:
This subclass is indented under subclass 145.1. Subject matter including means which operates to clean parts of the common path.

SEE OR SEARCH THIS CLASS, SUBCLASS:
148 for cleaning of the dispenser.

Dispensed product retains identity of individual material (e.g., striped toothpaste):
This subclass is indented under subclass 145.1. Subject matter wherein individual materials from the sources are recognizable in the product dispensed.

Movable material discharge guide:
This subclass is indented under subclass 145.1. Subject matter wherein there is associated with the common outlet a material discharge guide, so constructed as to be movable relative to a part to which the guide is attached for the purposes other than mere attachment or detachment.

SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for a hose or other movable discharge guide interlocks and interconnections.
160 where the dispensing container is mounted for motion.
257 for combinations of a follower and a casing enclosed impeller, at least one of them being interconnected with a movable nozzle.
320 for a movable nozzle interconnected with a single discharge assistant.
461 for a funnel type outlet movably interconnected with a container.
507 for annular, outlet surrounding discharge guides which are movable relative to and constitute an actuator for a second movable outlet element.
522 for an axially slidable tube, sleeve, or apertured cap.
526 for a movable material discharge guide.
567 for a nozzle, spout and pouring device having separable means for mere attachment and detachment purposes.

SEE OR SEARCH CLASS:
137, Fluid Handling, 615 for an articulated or swinging flow conduit in distribution system.
251, Valves and Valve Actuation, 149, 150, 341+, and 349+ for other moving flow pipe section and spout.
291, Track Sanders, subclass 31 for a flexible or movable pipe operable to cutoff sand feed.

Having mixing chamber:
This subclass is indented under subclass 145.1. Subject matter wherein the common feed path includes a space in which the materials from the individual feed paths are blended.

Including mixing means:
This subclass is indented under subclass 145.5. Subject matter comprising a structure located in the space to aid in blending of the materials.

SEE OR SEARCH THIS CLASS, SUBCLASS:
459 for stationary agitator.

SEE OR SEARCH CLASS:
366, Agitating, for agitating or mixing, in general, and see the line between Classes 222 and 366 as set forth in Lines With Other Classes and Within This Class, in the class definition of Class 366.

Having variable flow control:
This subclass is indented under subclass 145.1. Subject matter comprising means for adjustably regulating a material flow in (a) at least one of the individual feed paths or (b) the common feed path.
(1) Note. Check valves or mere outlet closures or valves are not included in this subclass.

For common path:
This subclass is indented under subclass 145.7. Subject matter wherein the flow regulating means is located in the common feed path.

WITH HEAT OR COOLING MEANS:
This subclass is indented under the class definition. Dispensers having means for raising or lowering the temperature of material dispensed above or below ambient temperature.

SEE OR SEARCH CLASS:
62, Refrigeration, for the combination of a nominally claimed Class 222 disperser, e.g., a dispensing means, with a cooling means; a Class 222 dispenser specifi-cally claimed in combination with a specifically claimed cooling means is classified in Class 222.
219, Electric Heating, for the combination of a nominally claimed Class 222 dispenser, e.g., a dispensing means, with an electrical heating means; a Class 222 dispenser specifically claimed in combination with a specifically claimed electrical heating means is classified in Class 222.

Heating only:
This subclass is indented under subclass 146.1. Dispensers having only means for raising the temperature of the material dispensed above ambient temperature.

Having an aerosol:
This subclass is indented under subclass 146.2. Dispensers which include an aerosol, e.i., a device in which the material dispensed is caused to be discharged from a container by a fluid under pressure that directly contacts the material dispensed.

By steam:
This subclass is indented under subclass 146.2. Dispensers wherein the temperature of the material dispensed is raised by a vapor which has been created by raising the temperature of water above it boiling point.

By electrical energy:
This subclass is indented under subclass 146.2. Dispenser wherein the temperature of the material dispensed is raised by electrical current.

Cooling only:
This subclass is indented under subclass 146.1. Dispenser having only means for lowering the temperature of the material dispensed below ambient temperature.

This subclass is indented under the class definition. Dispensers having means to prevent or render difficult the introduction of material into the dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
80 particularly, subclasses 80, 85+, and 87 for structures which cut or punch a container for the purpose of refill preventing.
476 and subclasses following the same, for mere valve, flow controller or closure structure for the dispensing outlet. Refill preventing means requires more than such structure.

SEE OR SEARCH CLASS:
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 346 and 348+ for receivers which have features of structure to prevent filling except by use of a dispenser having special cooperative features.
215, Bottles and Jars, 14 for other devices having this combination.

This subclass is indented under the class definition. Dispensers having (1) devices which operate to clean parts of the apparatus other than or in addition to the material storage chamber or discharge paths, and (2) devices which operate to clean the storage chamber or discharge path and which are capable of functioning only when dispensing is not taking place or which do not assist with a dispensing operation.
(1) Note. This and the indented subclasses do not take devices which assist normal discharge (such as agitators and other discharge assistants) nor devices which remove material
from such discharge assistants, nor does it take mere openings (with or without closures therefor) which provide access to the interior for cleaning or other purposes, such subject matter being provided for in the following subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:
196.3 for hand manipulable shaker type dispensers having inertia operated movable means promoting dispensing by jarring or impact and also comprising elements adapted to clear the openings of a sifter or plural opening pattern dispensing outlet.
216 for ejectors for the material in either (1) conveyor type discharge assistants with trap chambers or grooves, and (2) movable trap chambers.
226 for discharge assistants having agitator type discharge assistants preceding them in acting on the material, and frequently having a wall cleaning function.
252 for other plural sequentially operable discharge assistants, the second of which may be a cleaner type of agitator.
342 for scrapers or wipers for or carried by a discharge assistant.
345 for strikers or clearers for conveyor type trap chambers.
478 for dispensers having openings other than and in addition to dispensing outlets, including openings for access to the interior for cleaning or other purposes, there being no cleaning means claimed.

SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning.
34, Drying and Gas or Vapor Contact With Solids, subclass 85.
68, Textiles: Fluid Treating Apparatus.
134, Cleaning and Liquid Contact With Solids, and see the notes thereto for cleaning in general.
137, Fluid Handling, 237 for fluid handling systems having installed cleaning means.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 89 and 92 for receiver inlet cleaners in a dispensing and receiving combination.
239, Fluid Sprinkling, Spraying, and Diffusing, 106 for
spray nozzles combined with cleaning or flushing means therefor.
291, Track Sanders, subclass 12 and 42+ for blast nozzle and sand-delivery pipe cleaners.
431, Combustion, 121 for a burner having a purging or cleaning means.

This subclass is indented under subclass 148. Dispensers having means constructed to pass through the dispenser outlet passage to clean the same.

SEE OR SEARCH THIS CLASS, SUBCLASS:
322 for dispensers having discharge assistant with an actuator (for a movable dispenser element) projecting through the dispenser outlet.
501 for valve or closure elements, capable of stopping flow through the dispenser outlet and leaving an actuator projecting through an outlet. If there is no element capable of stopping flow, the device is in subclasses 149+.

SEE OR SEARCH CLASS:
137, Fluid Handling, 244 for cleaning means in which a mechanical member passes through a flow passage.
239, Fluid Sprinkling, Spraying, and Diffusing, 114 for cleaners which pass through the nozzle outlet to clean same, and subclasses 569+ for nozzles having restrictors combined therewith, some of which pass through and clean the nozzle outlet.

This subclass is indented under subclass 149. Dispensers in which the receptacle is of the resilient wall type and in which mechanism or connections between the cleaner and a wall causes motion of the cleaner on deflection of the wall.

SEE OR SEARCH THIS CLASS, SUBCLASS:
206 for resilient wall type receptacles, particularly subclass 213 for wall actuated valves or closures. If the valve or closure or its actuator extends through and
protrudes beyond the nozzle outlet, it is in subclass 150, even though the cleaning function is not alleged.

This subclass is indented under subclass 149. Dispensers in which the cleaning element is caused to pass from the exterior inwardly through the outlet to perform its cleaning function.

This subclass is indented under the class definition. Dispensers having either or both (1) means to jacket a material conveying conduit, or (2) means to provide a nonmaterial discharging inert atmosphere for the material to be dispensed, including means to evacuate gases from the container.
(1) Note. The inert atmosphere may be provided by means to conserve the gases in the container by bells with seals or by storage containers, or by otherwise preventing free exhaust of such gases during refilling.
(2) Note. The inert atmosphere may be chemically inert, i.e., not reactive chemically with the material to be dispensed, or it may be one which is not combustible with the vapors given off by the material.

SEE OR SEARCH THIS CLASS, SUBCLASS:
53 for such devices combined with automatic control and see the notes thereto.
190 for means to humidify or remove moisture from the dispenser atmosphere.
195 209, 258, 261-263, 334, 373, 389, 394+, and 630+, for fluid flow discharge, gas agitation, or fluid pressure mediums causing discharge by acting on pumps, followers, etc., or by acting directly on material even though the fluids used for such purposes are inert to the material being dispensed.

WITH LOCK OR FASTENING SEAL:
This subclass is indented under the class definition. Subject matter including a device to secure the dispenser for impeding (a) an unauthorized use of the dispenser or (b) disassembly of parts of the dispenser from each other or (c) actuation or deactuation of a discharge assistant, flow controller or closure.

SEE OR SEARCH THIS CLASS, SUBCLASS:
147 for a refill preventing means

SEE OR SEARCH CLASS:
70, Locks, for locks, per se.
137, Fluid Handling, 383 for a fluid handling system with lock or seal.
221, Article Dispensing, subclass 154 for an article dispenser having a lock, latch, or seal means for the supply container or its support.
292, Closure Fasteners, 307 for a seal.

Plural:
This subclass is indented under subclass 153.01. Subject matter including two or more securing devices.

Lock actuated by key or tool:
This subclass is indented under subclass 153.01. Subject matter wherein the lock is operated by use of a key or some other hand manipulated instrument.

Lock operation dependent upon dispenser position:
This subclass is indented under subclass 153.01. Subject matter wherein the securing device impedes an operation of the dispenser unless the dispenser is moved to a predetermined orientation.

Single-use fastening seal:
This subclass is indented under subclass 153.01. Subject matter wherein the fastening seal includes an element associated with the dispenser for (a) retaining the dispenser or the dispenser closure in a closed position or (b) indicating to a subsequent user that the dispenser or the dispenser closure has been previously opened or manipulated.

SEE OR SEARCH THIS CLASS, SUBCLASS:
147 for a refill preventing means.

SEE OR SEARCH CLASS:
70, Locks, subclass 50 for padlock with seal.
137, Fluid Handling, 383 for a fluid handling system with lock or seal.
221, Article Dispensing, subclass 154 for an article dispenser having lock, latch, or seal means for the supply container or its support.
292, Closure Fasteners, 307 and 327 for a seal.

Frangible:
This subclass is indented under subclass 153.05. Subject matter wherein the seal element is easily broken to gain access to the dispenser.

Pull tab:
This subclass is indented under subclass 153.06. Subject matter wherein a tab or similar projecting device is associated with the seal element to be grasped by a user for breaking the seal element.

Cord:
This subclass is indented under subclass 153.05. Subject matter wherein the seal element is an elongated string-like
member.
(1) Note. The string-like member may be made of metal or non-metal material.

Inhibiting disassembly:
This subclass is indented under subclass 153.01. Subject matter wherein the securing device operates to impede the separation of the parts of the dispenser from each other.

Overcap:
This subclass is indented under subclass 153.09. Subject matter wherein the securing device is associated with a secondary closure covering a primary flow controller or closure member of the dispenser to impede access to the dispenser.

For a fluid pressure discharge assistant:
This subclass is indented under subclass 153.01. Subject matter wherein the securing device is associated with a dispenser of the type utilizing a gas or liquid under pressure which directly contacts the material to be dispensed to cause a discharge.
(1) Note. A discharge assistant is defined in Lines With Other Classes and Within This Class, Discharge Assistants (e.g., Impellers, Pumps, Conveyors, Movable Trap Chambers, Etc., in the main class definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:
153.13 for a lock to inhibit actuation of the discharge assistant which is not of the fluid pressure type.
394 for a fluid pressure discharge assistant.
402.11 for an aerosol type dispenser having means for rendering the valve actuator inoperable.

Maintain dispenser in open position:
This subclass is indented under subclass 153.11. Subject matter wherein the securing device maintains the dispenser in a dispensing mode.

SEE OR SEARCH THIS CLASS, SUBCLASS:
402.14 for an aerosol type dispenser (i.e., the dispenser where a valve is actuated by a nozzle or through a valve outlet) with means to hold the valve open.

Inhibiting actuation of discharge assistant:
This subclass is indented under subclass 153.01. Subject matter wherein the securing device impedes the actuation of the discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
153.11 for a dispenser with a fluid pressure discharge assistant in combination with a locking device.
384 for a dispenser including piston holding means to prevent motion of the piston of a pump or pulsator.

Inhibiting operation of flow controller or closure:
This subclass is indented under subclass 153.01. Subject matter wherein the securing device impedes the opening or closing of the flow controller or closure of the dispenser for regulating the flow of the material through the discharge outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
153.1 for an overcap with lock denying access to a valve outlet or flow controller.
153.11 for a dispenser with a fluid pressure discharge assistant in combination with a locking device.

This subclass is indented under the class definition. Dispensers having means for permitting inspection of the contents or a part thereof.
(1) Note. Included for example are transparent graduated receptacles, receptacles, having transparent sight openings, transparent inserts in discharge passages, etc.
(2) Note. Mere transparent receptacles, mere filling and/or dispensing openings with or without their closures or valves are not considered inspection devices and occur in appropriate subclasses below.
(3) Note. The container may be either the supply container or a trap.

SEE OR SEARCH THIS CLASS, SUBCLASS:
23 for such subject matter combined with pointers, indicators, exhibitors, etc.
205 215, 420, and 458, for example, for dispensers having mere transparent walls.

SEE OR SEARCH CLASS:
73, Measuring and Testing, 323 for liquid level or depth sight glasses and subclasses 426+ for measuring vessels having no dispensing features but which are provided with inspection means.
116, Signals and Indicators, 264 for fluid flow sight devices.
137, Fluid Handling, subclass 559 for inspection means for fluid handling systems.
184, Lubrication, 96 for sight feeds.
217, Wooden Receptacles, subclasses 9-11, 58 and 63, for those having display features.
221, Article Dispensing, subclass 155 for article dispensing devices having transparent inspecting or viewing means.

This subclass is indented under subclass 154. Dispensers having gauge tubes mounted exteriorly of the container to show the material level within the container.

This subclass is indented under subclass 154. Dispensers in which a portion of the container is transparent and is so placed that the level or condition of the material may be seen.

This subclass is indented under subclass 156. Dispensers in which the sight opening is of such an extent and so marked that the level of the contents may be determined by comparison with the marks.

This subclass is indented under subclass 154. Dispensers in which the entire container or its side walls are transparent and provided with graduations forming a scale for measuring the contents. The graduations may be placed on a separate member either inside or outside of the container.

This subclass is indented under subclass 154. Dispensers in which pipes or conduits are provided with transparent sections so that the fact of flow or the presence of material may be determined.

SEE OR SEARCH THIS CLASS, SUBCLASS:
40 for transparent flow line sections having an indicator moved by flowing material or for moving indicators exterior to the flow line section.

SEE OR SEARCH CLASS:
116, Signals and Indicators, 264.
184, Lubrication, 96.
406, Conveyors: Fluid Current, subclass 36.
431, Combustion, subclass 13 for a burner having a transparent viewing area.

This subclass is indented under the class definition. Dispensers in which at least the dispensing supply container is mounted for motion relative to its support or casing for some purpose other than mere attachment or detachment.
(1) Note. Where a discharge assistant is connected to the supply container for motion relative thereto, the supply container not being mounted for motion, the patent is in subclasses 173+, if means for immovable support is claimed, and in the appropriate following discharge assistant subclasses where no support means for the supply container is claimed.

SEE OR SEARCH THIS CLASS, SUBCLASS:
173 see note 1.
176 where the supply container is mounted on a vehicle but has no motion relative to the vehicle chassis.
216 for agitator-conveyor type discharge assistant or agitator-movable trap chamber combinations.
282 for discharge assistants with volume varying means.
344 for conveyor type or movable trap chambers, including barometric or angle of repose (355) and dipping (358+).
437 and 457, for other barometric and angle of repose traps in various combinations.
463 for rockable or weighted dispensing containers.

SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, particularly subclass 365, 592+, 627, and 644.
109, Safes, Bank Protection, or a Related Device, 45, for movably mounted safes.
137, Fluid Handling, subclass 581 for fluid handling systems involving a movable tank.
164, Metal Founding, 335 for ladle or crucible type melt receptacle associated with molten metal shaping apparatus.
209, Classifying, Separating, and Assorting Solids, which has
many subclasses on movably mounted receptacle type devices.
211, Supports: Racks, 71 for movably mounted receptacle support racks.
221, Article Dispensing, 186 for article dispensing devices in which the supply container is movably mounted for dispensing.
248, Supports, 128 for movable receptacle stands; and subclass 202.1 for swinging receptacle brackets.
298, Land Vehicles: Dumping, appropriate subclasses.
366, Agitating, for a movably mounted mixing chamber, particularly 53 and 219+.
414, Material or Article Handling, appropriate subclasses for a receptacle or other load holder which may move relative to its support for receiving or releasing a load.

This subclass is indented under subclass 160. Dispensers, in which the movement of the dispensing container is of relatively small amplitude, for the purpose of shaking the contents.

SEE OR SEARCH THIS CLASS, SUBCLASS:
196 for supply containers not movably mounted and flexible walled containers, designed to be jarred or have the walls vibrated for the same purpose.

SEE OR SEARCH CLASS:
184, Lubrication, subclass 69 for vibrator cut-offs for gravity feed lubricators.
209, Classifying, Separating, and Assorting Solids, appropriate subclasses, particularly 195 and 446+.
221, Article Dispensing, 200 for article dispensers having means to agitate, vibrate or jar the articles in the supply container, and see also appropriate subclasses indented under subclasses 156+ and 175+ for orienting and stack forming article dispensers, most of which involve agitation of articles in the supply container.
460, Crop Threshing or Separating, subclass 96 for vibrators for grain separator straw carriers.

This subclass is indented under subclass 160. Dispensers in which the supply container is mounted to move relatively to a trap chamber, impeller, or valve element so that its movement causes a dispensing operation.

This subclass is indented under subclass 160. Dispensers in which the container is adjustable relatively to some discharge assistant either to select one of several of different capacities or to vary the size of the outlet or the material surface exposed to the discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
285 for dispensers in which an element carried by the supply container and a discharge assistant are relatively movable to vary the discharge volume, but the supply container is not movably mounted.

This subclass is indented under subclass 160. Dispensers having a tiltably mounted container, i.e., mounted for a back and forth motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:
463 for weighted dispensers and those in which the receptacle configuration permits rocking or tilting.
577 for an inkstand including an inkwell tiltable on a base.

SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, subclass 18 for tilting water feeders for acetylene generators.
105, Railway Rolling Stock, 261.1 for dumping car body involving tilting thereof.
126, Stoves and Furnaces, subclass 349 for a tilting kettle furnace-type liquid heater.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 231 for portable systems or track mounted supply means, and subclass 284 for combinations including movably mounted supply means.
164, Metal Founding, 335 for ladle or crucible type melt receptacles associated with molten metal shaping apparatus.
177, Weighing Scales, subclass 115 for a weigh chamber that discharges by tilting.
209, Classifying, Separating, and Assorting Solids, subclass 260 for sifters involving tilting discharge.
221, Article Dispensing, 188 for article dispensers in which the supply container is mounted for angular back and forth movement about a fixed axis.
248, Supports, 133 for stands for tilting receptacles.
291, Track Sanders, subclass 30, for oscillatory hopper sand feeders.
294, Handling: Hand and Hoist-Line Implements, 68.26 for tilting hoisting-bucket type.
298, Land Vehicles: Dumping, subclass 7, 9, 11, 12+, and 47 for a vehicle having a body mounted for tilting movement (i.e., dumping vehicle) and a dispensing feature.

This subclass is indented under subclass 164. Dispensers in which the container is tilted for refilling with fluent material or for removal and insertion of cartridge containing material to be dispensed.
(1) Note. See the search notes to subclass 164.

SEE OR SEARCH THIS CLASS, SUBCLASS:
325 for other removable cartridges.

SEE OR SEARCH CLASS:
224, Package and Article Carriers, subclass 199, for cartridge carriers having tilting pockets.

This subclass is indented under subclass 164. Dispensers having a container that is tilted for dispensing by the force of gravity alone.
(1) Note. See the search notes to subclass 164.

SEE OR SEARCH CLASS:
366, Agitating, subclass 36 and 39 for tilting skip feeders for mortar mixers.

This subclass is indented under subclass 160. Dispensers in which the container rotates about an axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:
144 for plural sources, compartments or containers so mounted.

SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, 108 for rotary drums or containers.
111, Planting, subclass 74 and 90+ for combinations with revolving hoppers.
165, Heat Exchange, subclass 88 for a heat exchanger comprising a rotary chamber.
177, Weighing Scales, 83 for weigh chambers that rotate to discharge.
209, Classifying, Separating, and Assorting Solids, particularly 198 for rotating receptacle amalgamators, subclasses 270, 284 through 306 for drum sifters, many mounted for rotation and subclasses 451 through 453 for rotating container stratifiers.
224, Package and Article Carriers, subclass 196, for body or belt attached, revolving cartridge carriers.
248, Supports, subclass 130 and 131, for stands supporting rotating containers.
266, Metallurgical Apparatus, 243, for rotary converters.
298, Land Vehicles: Dumping, particularly subclass 9 and 10 for those having rotating motion.
366, Agitating, particularly 45 and 185 for a mixing chamber which is tilted for discharge.

This subclass is indented under subclass 167. Dispensers in which the axis of rotation is vertical or substantially so.

This subclass is indented under subclass 168. Dispensers having a plurality of trap chambers which are positioned at the periphery of the apparatus and are arranged to discharge a measured quantity of contents material supplied by the supply container.

This subclass is indented under subclass 167. Dispensers in which the discharge passage or passages open through the periphery of the rotatable container.

This subclass is indented under subclass 169. Dispensers having trap chambers in the periphery of the container.

This subclass is indented under subclass 169. Dispensers having a sleeve or similar telescoping part acting as a discharge controller for the peripheral outlets.

SEE OR SEARCH THIS CLASS, SUBCLASS:
519 for axially rotary and longitudinally slidable sleeve
type outlet elements.
522 for axially slidable sleeve-type outlet elements.
553 for axially rotary apertured sleeve type discharge controllers.

This subclass is indented under subclass 169. Dispensers in which the discharge outlet is an annular slot between separate parts of the rotary container.

This subclass is indented under the class definition. Dispensers having either (1) a casing enclosing the dispenser in whole or in part, or (2) means for supporting the dispenser.
(1) Note. The casing must be in addition to the wall structure of the material holding container.
(2) Note. The sidewalls of dispensing containers (in which the bottom wall is above the lower edge of the side walls) are considered supports; see subclass 184.

SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for hose or discharge guides having interlock supports.
80 where there is a cutter or punch, particularly subclass 80 where a cutter or punch is provided to penetrate some element in order to support the dispenser therefrom.
100 for collapsible wall type receptacles with casing or support and see the Notes thereto.
129.1 for cabinet housed drink mixing and dispensing apparatus.
143 for packing or stacking arrangements for plural dispensers.
160 and see the Notes thereto for movably mounted supply containers.
184 see Notes 1 and 2.
191 for dispensers combined with tool or implement handles.
325 for cartridges or containers separably supported on bases or in jackets connected with discharge assistants.
437 and 457, for supply container supports involved in barometric type trap organizations.
463 for rockable or weighted dispensing containers.
465.1 and see the notes thereto for dispensers having handles for manipulating the dispenser.
577 for an inkstand; i.e., a dispensing inkwell and a supporting base therefor.

SEE OR SEARCH CLASS:
47, Plant Husbandry, 50 particularly 53 for sap bucket supports.
104, Railways, 275 for hose bridges.
109, Safes, Bank Protection, or a Related Device, 50.
137, Fluid Handling, subclass 125 and 267 for plural tank truck carried systems; subclass 236.1 for distribution systems involving geos:graphic features; subclasses 343+ for fluid systems having casings, supports or protectors, or having static constructional installation features, especially subclasses 899+ for vehicle mounted systems; subclasses 357+ for systems installed in buildings; subclasses 363+ for systems installed in the ground; subclass 374 for those associated with furniture and house furnishings; and subclasses 377+ for guards and protectors for limited areas of the system, as outlets.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 364 for a filling supply means supported on the receiver, and subclasses 369+ for dispensers having supporting means for independent receivers.
211, Supports: Racks, particularly sub- classes 71+ for receptacle support type.
220, Receptacles, 3.3, 3.9+, 476+, and 628+ for supports, subclasses 23.87+, 23.91, 560.1, 573.4+ or a container enclosed in another container or casing and subclasses 23.9, 495.01+, 574.3, and 908.1+ for receptacles having liners.
221, Article Dispensing, 282 for article dispensers having casing or support features.
232, Deposit and Collection Receptacles, subclass 39 for letter boxes with supports.
239, Fluid Sprinkling, Spraying, and Diffusing, appropriate
subclasses especially 146 for vehicular type supports for spray apparatus, subclasses 195+ for hose holders combined with spray apparatus, subclasses 200+ for fixed or ground installed supports for spray apparatus, and subclasses 273+ for spray apparatus connected to or supported from a device which, per se, is elsewhere classified.
242, Winding, Tensioning, or Guiding, 398 for a reel carrier which may be adapted to support a hose reel.
248, Supports, for supports in general, particularly 75 for hose and/or nozzle type, 94 for strainer or funnel type 95, 102, 108, 128, 146, 196, 311.1, and 318 for receptacle type.

This subclass is indented under subclass 173. Dispensers having a pole or other extension device connected thereto. These are for the most part for providing an arrangement so that the dispenser may deposit its contents at a place remote from the person operating the same. The pole may carry the entire dispenser or only an elongated discharge passage.

SEE OR SEARCH THIS CLASS, SUBCLASS:
191 for dispensers combined with tool or implement handles.
379 for material supply container and discharge assistant casing having a telescopic material discharge guide.
398 for containers with fluid pressure discharge assistants having a telescopic supply container or discharge guides.
465.1 for handle and handgrips for dispensers.
523 for miscellaneous telescoping material discharge guides.

SEE OR SEARCH CLASS:
239, Fluid Sprinkling, Spraying, and Diffusing, 280, 375 and 532 for spraying apparatus which is attached to a pole.
294, Handling: Hand and Hoist-Line Implements, 19.1 for pole structures having handling implement terminals and see the notes to the definitions thereof for related devices.

This subclass is indented under subclass 173. Dispensers having means adapting the container to be supported on the body of the user, or having an actuator adapted to be operated by parts of the body other than the hand or foot.

SEE OR SEARCH THIS CLASS, SUBCLASS:
179 for containers with supports having foot operated means for actuating some part of the combinations.
465.1 for dispensers with handles, there being no means for supporting on the body of the user.

SEE OR SEARCH CLASS:
220, Receptacles, 17.1 for leg or lap supported milking pails.
221, Article Dispensing, subclass 185 for article dispensers having means especially adapting them to be carried and supported by the body.
227, Elongated-Member-Driving Apparatus, subclass 49 for body harness and see the notes to such subclass for other combinations involving body carried devices.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 652 for a scatterer comprising a container for nonfluid material and a manually moved tube; subclass 653 for a body supported device comprising a container for nonfluid material and a scattering or strewing means; subclass 686 for a device comprising a container for nonfluid material and a scattering or strewing means operated by a manual or pedal driving means; subclasses 152+ for a sprinkling or spraying device which is body or animal carried.

This subclass is indented under subclass 173. Dispensers having an actuator for the dispensing means adapted to be operated by the feet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
186 for a foot piece or rest to hold the dispenser in place.

SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, subclass 249, 272+ and 308.
49, Movable or Removable Closures, 263 for a pedal or
treadle actuated closure.
74, Machine Element or Mechanism, appropriate subclasses, particularly 473.16, 478, 481, 512+, 539, 542, 560+, and 594.1+, for pedals and pedal actuated mechanisms in general.
84, Music, 72, 353, 357+, and 366 for wind instruments with pedal control.
110, Furnaces, subclass 178 for pedal actuated furnace doors.
111, Planting, subclass 98 for foot plate controlled dibbles.
251, Valves and Valve Actuation, subclass 295 for pedal operated valves.

This subclass is indented under subclass 173. Dispensers in which the dispenser is separable from the casing or support and is removable from such casing or support for dispensing. The dispensing outlet may be closed by the base, making removal necessary for dispensing, or the relation between the dispenser and base may be such that removal is necessary for other reasons, as the size of the base or the lack of a firm connection between the base and dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
142.3 for plural supply containers of the hand manipulable shaker type which are bodily separable from their support or casing for various purposes, as use, refilling or mere assembly.

This subclass is indented under subclass 173. Dispensers in which bracket or suspension means are provided for supporting the dispenser.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 283 for article dispensers which are bracket or suspension supported.
248, Supports, 200 and 317+ for brackets and suspended supports in general.

For bottom discharge:
This subclass is indented under subclass 180. Subject matter wherein the dispenser in a normally supported position will have a discharge through an outlet at or adjacent the lowermost portion of the dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
100 and 105, for a support for a collapsible wall-type dispenser.
160 for a dispenser mounted for a motion relative to its support.
173 for a dispenser with a casing or support.
185.1 for a dispenser mounted in a bottom discharge position on a horizontal surface.

Suspension supported:
This subclass is indented under subclass 181.1. Subject matter wherein the dispenser is supported by a suspension means.

Supported on vertical wall by container integral with wall or by a plate support means:
This subclass is indented under subclass 181.1. Subject matter wherein a support for the dispenser is located on a vertical surface.

This subclass is indented under subclass 173. Dispensers having a cover which may be moved to expose some or all of the actuating parts of the discharge means.
(1) Note. Included are covers soldered in place and broken
away to expose the operating parts.

SEE OR SEARCH THIS CLASS, SUBCLASS:
111 for this feature where there is also means to return drip, leakage, or waste to the main supply.
130 for spaced jackets surrounding the supply container.
183 for jacketed dispensers.
325 where the cover is solely to permit insertion of a cartridge or container for material to be dispensed into a dispenser organization having a discharge assistant.
402.17 for fluid pressure discharge assistant dispensers having a container end cover with an opening through which discharging material passes and means by way of which a valve is actuated, such cover remaining in place during dispensing.

SEE OR SEARCH CLASS:
137, Fluid Handling, 377 for guards and shields for portions of fluid handling systems, usually the outlet.

This subclass is indented under subclass 173. Dispensers having a jacket about the dispensing container.
(1) Note. The jacket may be of skeleton form.

SEE OR SEARCH THIS CLASS, SUBCLASS:
83.5 86 and 88, for dispensers having a sleeve or rest for a container on which a cutter or punch operates.
131 for dispensing containers having spaced jackets, and see the notes thereto for related art.
182 for enclosing covers for actuating parts of discharging means, and see the notes thereto for related art.
210 323+ and 465+, for dispenser handles and handgrips, including those fastened to the dispenser by an encircling band.
325 for removable containers and cartridges enclosed in the casings or supports of discharge assistants.
457.5 for supply containers of the hand shaker type having a hood or shield which forms a discharge passage for material
emitted from the container at a point within the shield, so that the dispensed material follows a generally U-shaped path.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 375 for jacketed fluid handling systems.
215, Bottles and Jars, subclass 12, for those having protective jackets.
220, Receptacles, 23.87, 23.91, 560.1, 573.4+ or a container enclosed in another container or jacket.
221, Article Dispensing, subclass 286 for article dispensers having a casing or outer covering (jacket) which provides a nonmaterial holding intervening space between such casing or covering and a dispenser.

This subclass is indented under subclass 173. Dispensers in which the side walls of the dispensing container are extended below the bottom on which the material rests to form a supporting base.

SEE OR SEARCH THIS CLASS, SUBCLASS:
183 for jackets so formed.

SEE OR SEARCH CLASS:
220, Receptacles, particularly 605 and 628+ for such structures in general.

For bottom discharge dispenser supported on horizontal surface:
This subclass is indented under subclass 173. Subject matter wherein the dispenser is supported on a horizontal surface and will have a discharge through an outlet at or adjacent the lowermost portion of the dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
181.1 for other bottom discharge dispenser.
321.5 for an inlet trap in a material supply container
having a discharge assistant casing.
328 for a material discharge guide on the container side of the outlet.
377 for an inlet trap in the supply container with a pump.

This subclass is indented under subclass 173. Dispensers having an element positioned to be engaged by the foot of the operator for holding the dispenser in place.

SEE OR SEARCH THIS CLASS, SUBCLASS:
179 for pedal controlled discharge means.

SEE OR SEARCH CLASS:
248, Supports, 361 for hold-downs in general.

This subclass is indented under the class definition. Dispensers in which the discharge or dispensing feed is by means of a wick or absorbent material.

SEE OR SEARCH THIS CLASS, SUBCLASS:
189.06 for filters of absorbent material.

SEE OR SEARCH CLASS:
118, Coating Apparatus, 264 for static absorbent or porous applicators.
184, Lubrication, particularly 3.1, 16, 64, and 102 for swab or absorbent applicators.
239, Fluid Sprinkling, Spraying, and Diffusing, 34 for slow diffusers utilizing wicks or other absorbent means.
384, Bearings, subclass 379 for capillary feed to a bearing surface and see search notes.
401, Coating Implements With Material Supply, 198, wherein the implement includes a wick means to feed coating material from its reservoir to a tool which is porous and through which material passes to the work surface; and subclass 283,
for such an implement wherein the tool is of the brush, broom or mop type.
427, Coating Processes, subclass 429 for coating processes utilizing a web, wick, or absorbent applicator.
431, Combustion, 298 for a fuel burner in which the flame is fed by a wick.

This subclass is indented under the class definition. Dispensers having a fluid trap means to seal inlets or outlets.
(1) Note. The fluid traps, for the most part, are to prevent the vapors formed by volatile contents (such as gasoline) escaping through the dispensing and/or vent openings.

SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids subclass 242, for chamber seals, and see the notes thereto.
137, Fluid Handling, 247 for liquid valves and liquid trap seals.
210, Liquid Purification or Separation, 163 for catch basins or traps having grated inlet surface drains.
217, Wooden Receptacles, subclass 105, for valved barrel bungs with a liquid seal.
220, Receptacles, subclass 228 for closures with a liquid seal.
406, Conveyors: Fluid Current, appropriate subclasses for hydraulic conveyors.

WITH FLAME ARRESTER:
This subclass is indented under the class definition. Subject matter having a means associated with a venting or discharge passage for preventing a flame from passing through it.

SEE OR SEARCH THIS CLASS, SUBCLASS:
53 and 152, for maintaining an inert atmosphere in or around the dispenser.
187 for a wick or absorbent material feed.
188 for a fluid trap seal, some of which are disclosed for washing material passing therethrough.
190 for an absorbent material used for other characters of dispensed material treatment or conditioning.
195 for a gas filter for the gas used in agitating the material to be dispensed.
394 for a filter for fluid pressure discharge assistant.

SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, subclass 192 for a flame guard.
55, Gas Separation, 490 for means securing or retaining a separating media.
137, Fluid Handling, subclass 140 and 544+ for fluid handling system having means for separating solid material from the fluid including screen, strainer and filter and subclasses 377+ for a foraminous guard for fluid handling system.
220, Receptacles, subclass 88.2 for a fire preventing screen.

WITH SIFTER:
This subclass is indented under the class definition. Subject matter wherein the dispenser includes a container for granular material consisting of large particles and small particles, and the container further includes a device having a plurality of openings smaller than the large particles and larger than the small particles, so that the small particles will pass through the device and the large particles will be retained, or the device disintegrates the large particles to permit the particles to pass through the openings.

SEE OR SEARCH THIS CLASS, SUBCLASS:
480 for a hand-manipulable shaker, having diverse-type openings.
565 for a sifter, sprinkler, or plural opening patterns.

SEE OR SEARCH CLASS:
99, Foods and Beverages, subclass 521, 522, 528, 603+ and 605+ for a grain huller embodying sifter.
209, Classifying, Separating, and Assorting Solids, particularly 233, for a sifter.
241, Solid Material Comminution or Disintegration, 49, 69+, and 83+ for a sifter combined with or forming part of a comminuter.

Integral with container:
This subclass is indented under subclass 189.02. Subject matter wherein the sifter is permanently connected to the container.

Plural:
This subclass is indented under subclass 189.02. Subject matter including two or more sifters.

Including moving mechanism:
This subclass is indented under subclass 189.02. Subject matter including a device to move the sifter to assist in removing the material from the container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
196 for a jarring or vibrating means.
216 for an agitator or ejector.
226 for an agitator followed by discharge assistant or an interconnected discharge controller.

SEE OR SEARCH CLASS:
221, Article Dispensing, 224 for plural discharge assistants combined with a manipulating means.

WITH FILTER (E.G., STRAINER):
This subclass is indented under the class definition. Subject matter wherein the dispenser includes a container for a liquid material and the container further includes a separating device having a plurality of openings for (a) retaining matter (e.g., solid or fluid) within a container when a fluid is removed from the container or (b) preventing matter (e.g., solid or fluid) from entering the container from surrounding atmosphere.

SEE OR SEARCH THIS CLASS, SUBCLASS:
187 for a wick or absorbent material feed.
188 for fluid-trap-seals, some of which are disclosed for washing material passing therethrough.
189.01 for a flame arrester.
189.02 for a sifter.
190 for a material treatment or conditioning means.
195 for a gas filter for the gas used in agitating the material to be dispensed.
394 for filter for fluid discharge assistant.
480 for mere pattern or sifting type openings such as hand-manipulable shaker.

SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, subclass 192 for a flame guard.
55, Gas Separation, 490 for a means securing or retaining a separating media.
137, Fluid Handling, subclass 140 and 544+ for a fluid handling system having means for separating solid material from the fluid including a screen, strainer, and filter and subclasses 377+ for a foraminous guard for fluid handling system.
209, Classifying, Separating, and Assorting Solids, particularly 233 for a sifter for separating solid materials.
210, Liquid Purification or Separation, subclass 296 for a gravitational separator using liquid as a separating medium combined with a filter, subclasses 348+ for a filter, and subclasses 464+ for a portable receptacle of draining type.
220, Receptacles, 88.1 for a fire prevention screen or flame
arrester.
291, Track Sanders, subclass 13 and 48 for a screen combination.
312, Supports: Cabinet Structure, subclass 210.5 for a sifter combination.

Portable drainer:
This subclass is indented under subclass 189.06. Subject matter wherein (a) the liquid is in a hand-held container tiltable from an erect to a pouring position and (b) the filter is located relative to a pouring outlet so that the solid matter is retained in the container when the container is tilted.

Plural:
This subclass is indented under subclass 189.06. Subject matter including two or more filters.

Associated with vent passage:
This subclass is indented under subclass 189.06. Subject matter wherein the filter is associated with an air passage other than a dispensing passage.

Internally extended outlet pipe (e.g., diptube):
This subclass is indented under subclass 189.06. Subject matter wherein (a) the filter is located within a tube through which the fluid is dispensed and (b) the tube extends into the fluid within the container.

With discharge assistant:
This subclass is indented under subclass 189.06. Subject matter wherein the filter is associated with a discharge assistant.
(1) Note. A discharge assistant is defined in Lines With Other Classes and Within This Class, Discharge Assistants (e.g. Impellers, Pumps, Conveyors, Movable Trap Chambers, Etc.), in the main class definition.

This subclass is indented under the class definition. Dispensers having means to modify, preserve or otherwise treat the material dispensed.
(1) Note. These are disclosed for various purposes such as moisture regulating by draining, humidifying or absorbing moisture, ventilating, etc.
(2) Note. Other main classes appropriate to the type of treating or conditioning means must be searched.

SEE OR SEARCH THIS CLASS, SUBCLASS:
113 for burner combinations.
131 for dispensers having heat exchange jackets.
146 for dispensers having miscellaneous heating or cooling means.
152 for dispensers having inert atmosphere providing means.
160 for movably mounted dispensers.
187 for wick or absorbent material feed.
188 for fluid-trap-seals.
189.01 189.02+ and 189.06+, for filter or strainer combinations.

SEE OR SEARCH CLASS:
53, Package Making, 111 for packaging apparatus combined with means to subject the contents material to an agency which alters a physical or chemical characteristic of the contents material.
221, Article Dispensing, 135 for article dispensers having combined therewith means to modify, preserve or otherwise treat the articles dispensed.
312, Supports: Cabinet Structure, 31 for gas or vapor treatment of material.

This subclass is indented under the class definition. Dispensers combined with the handles of tools or implements, either for support or for interconnection of the handles and dispenser actuators. The dispenser container may serve as, or be contained in, the tool or implement handle.

SEE OR SEARCH THIS CLASS, SUBCLASS:
174 for dispensers mounted on pole or extension devices.
192 for dispensers combined with firearms.
465.1 and see the notes thereto for dispensers having handles or handgrips.

SEE OR SEARCH CLASS:
16, Miscellaneous Hardware, 110.1, especially subclass 111.1 for receptacles combined with handles, and see Note 3 to subclass 110, for handles for tools, implements and analogous devices.
30, Cutlery, subclass 125, for cutlery implements having salt and pepper shakers forming or contained in the handles.
401, Coating Implements With Material Supply, subclass 138 and 140, wherein the implement includes a supply reservoir mounted on an elongated handle, which reservoir feeds material directly to the work (subclass 138) or the work-engaging portion of the implement (subclass 140).

This subclass is indented under the class definition. Dispensers claimed in combination with features other than the container structure and discharge assistant means and not provided for in preceding subclasses.
(1) Note. Container structure includes handles and/or handgrips, the inlets and/or outlets and their check-valves, manually actuated valves, discharge controllers and/or closures and actuating devices for such parts.
(2) Note. Discharge assistants include all mechanism that
moves or tends to move material toward or through a discharge outlet, fluid currents for the same purpose and actuating means therefor.
(3) Note. In this subclass, for example, are combinations with a firearm, bicycle, mirror, tools, or implements (cutters and punches are in subclasses 80+ and dispensers combined with tool or implement handles are in subclass 191), supports for additional articles, bumpers to absorb shock, protector rings, display or exhibiting means which do not display the material (subclasses 154+), display or exhibit a condition, or perform a measuring function (subclasses 23+), specific material to be dispensed, hand shields and sediment traps, or other material separating means (other than those in subclasses 188 and 189).
(4) Note. All preceding subclasses must be investigated for particular combinations within this definition and shown by the preceding subclass titles.
(5) Note. See the notes to the main class definition for combinations of dispensers with other devices located in other classes.

SEE OR SEARCH THIS CLASS, SUBCLASS:
23 see note 3.
80 see note 3.
93 for collapsible wall type containers combined with additional article holding means.
106 for collapsible wall type containers combined with miscellaneous other type devices.
154 see note 3.
188 189, see note 3.
191 see note 3.
538 and see the notes thereto, for means to house or secure discharge guides in a nonuse position.
564 and see the notes thereto for containers having interior material guides, including splash deflectors.

SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, subclass 246, for bumpers attached to the implements of that class.
137, Fluid Handling, subclass 234.6 for a system having a fluid handling guide or support and a fluid supply means for it, and subclass 560 for miscellaneous fluid handling systems combined with nonfluid handling means.
211, Supports: Racks, 69.2, for an inkwell combined with a penrack.
221, Article Dispensing, subclass 199 for combined article dispensing devices not elsewhere provided for.

This subclass is indented under the class definition. Dispensers having means to agitate the contents by gas; including, for example, gas pressure force feed arrangements in which the gas is discharged into the container contents below the surface thereof; also pump devices with means to disconnect the pump from the discharge and operate it to agitate contents; also means to discharge gas pressure exhaust into supply means for agitation.

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630 for fluid flow discharge type dispensers.

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68, Textiles: Fluid Treating Apparatus, subclass 183, for such apparatus where gas is supplied to a liquid.
209, Classifying, Separating, and Assorting Solids, subclass 295 and 321, for pneumatic agitation associated with sifting.
261, Gas and Liquid Contact Apparatus, particularly 121 for the submerged blast type.
366, Agitating, 3 and 10+ for mortar mixing chambers in which gas performs the agitating function, and subclasses 101+ for such gas type agitators of general utility.

This subclass is indented under the class definition. Dispensers having means either to jar the container and/or to cause some part of the container (including its outlet agitator or other discharge assistant adjacent its outlet) to vibrate, i.e., to move in reciprocations or oscillations of such small amplitude that the effect is to accelerate gravity flow rather than to move the material bodily toward or through the discharge outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
161 for supply containers mounted for vibrating, i.e., small amplitude, motion as distinguished from having a wall or wall portion mounted for such motion relative to other walls or wall portions, causing a wall or wall portion to jar or vibrate due to its resilience or flexibility and/or have an agitator or other discharge assistant or trap chamber have small amplitude vibratory motion.
206 for resilient wall dispensers designed for flexing the resilient wall to cause the dispensing operation, no jarring or vibrating means being provided.
226 for agitators removed from the outlet and followed (in the direction of material flow) by other discharge assistants, even though the agitator has movements of small amplitude, unless the agitator and/or the following discharge assistant is the container wall or part thereof with means to cause small amplitude movement, for which see subclasses 196+
275 and 409, for agitators and other discharge assistants having reciprocating motions, not mere vibrations.

SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, subclass 164 for those having treated material vibrating means.
164, Metal Founding, 203 for sand mold forming apparatus employing a vibrating means for compacting the sand.
198, Conveyors: Power-Driven, subclass 533 for a chute or other gravity conveyor that is vibrated and subclasses 521, 594+, 609, and 752.1 for a vibratory conveyor.
209, Classifying, Separating, and Assorting Solids, appropriate subclasses, particularly the impact or jarring subclasses under sifters (330, 334, 336, 338, 340, 343, 345, 347, 349, and 381+).
221, Article Dispensing, 163 for article dispensers including orienting and in which means to selectively separate properly oriented articles from a source of supply involves agitation of the articles in the source; subclasses 175+ for article dispensers having stack forming means, and in many of which agitating serves to assist discharge of articles from a hopper to a stacking outlet; and subclasses 200+ for article dispensers in general having means to shake or stir the supply container or the articles for agitating purposes.
366, Agitating, subclass 39 for skip feeds for mortar mixers having jarring or vibrating means.

This subclass is indented under subclass 196. Dispensers adapted to be supported in the hand and shaken to cause material to move through the outlet and having an inertia-operated movable part associated with the supply container for shifting movement when the container is shaken, whereby jarring results from the impact of the inertia operated member on the material or container and the material is loosened, shifted, dragged or impelled through the outlet.
(1) Note. See class definition, Lines With Other Classes and Within This Class, Hand Manipulable Shakers.
(2) Note. The movable element may be a discharge controller or closure, or a discharge assistant, the latter term including devices analogous to agitators or grinding bodies but not falling within the definitions of Classes 241 and 366. Mere motion of the material as a result of shaking is not considered a jarring element.
(3) Note. Since many manually movable elements are capable of shifting by inertia on movement of the dispenser, only those designed and constructed solely for this mode of operation and having no manual actuating means in connection with the movable element have been placed here.
(4) Note. Discharge assistants of the movable trap chamber type and stationary trap type dispensers have not been included, since the presence of the measuring function is inconsistent with the mode of operation characteristic of this group.

SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for members mounted in a stationary supply container to move only when shifting of the material displaces them, the shifting of the material being caused by dispensing.
404 415, for conveying type discharge assistants having manually operated actuators. See (2) Note.
454 for tiltable containers having traps which may have inertia-operated valves. (See (4) Note).
476 for dispensers which have spaced discharge controllers alternately seated in a single outlet of a container which is not a hand manipulable shaker.
500 for gravity or inertia-operated outlet elements for dispensers other than hand manipulable shakers. See class definition, Lines With Other Classes and Within This Class, Hand Manipuable Shakers.

SEE OR SEARCH CLASS:
241, Solid Material Comminution or Disintegration, 86, for comminuting devices comprising a rotary comminuting element cooperating with a perforated stationary surface, and subclass 168, for hand support comminutors, characterized by positive manual operation of crushing mechanism or by a loose grinding body type of comminuting element. See (2) Note.
366, Agitating, 129 for hand manipulable shaker type agitators. See (2) Note above, and see Class 366, class definition, Lines With Other Classes and Within This Class, in the class definition for the line.

This subclass is indented under subclass 196.1. Hand manipulable shakers in which the movable inertia-operated member is associated with the dispensing outlet, either forming or closing the outlet, or passing through it or approaching it so closely as to force or tend to force material through it.

SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for cleaning means passing through the dispenser outlet but not serving as either closure or discharge assistant.

This subclass is indented under subclass 196.2. Hand manipulable shakers in which the outlet is of the plural opening pattern type and an inertia-operated movable element or a part of such element passes through or moves into each opening of the pattern outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for cleaning means extending through dispenser outlets.
501 for outlet element actuators projecting through dispenser discharge guides.

This subclass is indented under subclass 196.2. Hand manipulable shakers in which the inertia-operable member does not have enlarged portions on both sides of the dispensing outlet but is loosely confined in a guide or housing adjacent the outlet so that it is freely movable toward or away from the outlet either to loosen or shift the material by impact thereon or on the container or to open and close the outlet, or both.
(1) Note. This subclass includes balls inertia elements movable adjacent the dispensing outlet. See Class 241, Solid Material Comminution or Disintegration, subclasses 86+, for comminuting devices which have a stationary comminuting surface with openings which cooperate with a rotary comminuting element.

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500 for other caged outlet elements operated by gravity or inertia.

SEE OR SEARCH CLASS:
241, Solid Material Comminution or Disintegration, 86, see (1) Note, and subclass 168, for hand supported comminutors for condiments in which the movable element is confined only by the walls of the supply container whereby lumps may be crushed between the movable element and the walls.

This subclass is indented under subclass 196.1. Hand manipulable shakers in which an inertia-operated movable element is mounted or formed for limited movement within the supply container so that its primary effect is to jar the dispenser, or loosen or shift the material by impact thereon, and any resultant crushing of the material between the movable element and the container walls is incidental, being prevented by the restrictions on the movement of the inertia-operated element.

SEE OR SEARCH CLASS:
241, Solid Material Comminution and Disintegration, subclass 168, for loose grinding body type hand supported comminutors.

This subclass is indented under subclass 196. Dispensers having vibrating means operating on or carried by a conveyor type or movable trap chamber so as to jar or vibrate the trap to dislodge or settle its contents.

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216 for agitators and ejectors for conveyor type or movable trap chambers.

This subclass is indented under subclass 196. Dispensers having a container with a single outlet, the container walls adjacent the outlet comprising or being covered by a plurality of vibrating members which bound or define the outlet.

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280 for outlets bounded by other discharge assistants.

This subclass is indented under subclass 196. Dispensers having a container with a movable bottom vibrating in substantially its own plane, or swinging toward and away from the outlet, which usually is located in a short arc, at one edge of the movable bottom.

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241, Solid Material Comminution or Disintegration, subclass 249 for such devices acting as feeds for comminutors.

This subclass is indented under subclass 196. Dispensers having a vibrating member movable across the outlet or near it and in a plane transverse to the material flow.

This subclass is indented under subclass 196. Dispensers having a vibratable container wall or false wall and a rotary discharge assistant, the wall receiving its motion from the rotary assistant or a projection or cam carried thereby.

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231 for free engagement type connection between agitators and other discharge assistants or valves.

This subclass is indented under subclass 196. Dispensers in which a wall of the supply container body or a portion thereof is jarred or vibrated to cause flexure thereof.
(1) Note. Means for causing such jarring or vibration other than motion of the hand (hand shaking) of the entire container must be included. Means movable with respect to the container to jar or vibrate a wall when it is hand shaken are here.
(2) Note. Where the wall is mounted on pivots or is mounted for sliding motion, see the preceding subclasses.

This subclass is indented under subclass 202. Dispensers in which the container wall or part thereof which receives the force causing vibration, is constructed of flexible material in whole or in part.
(1) Note. In the patents in subclass 202 in which a wall receives a blow or force to impart vibrations, the wall is of rigid or resilient material which may flex slightly due to the blow or force. The patents in subclass 203 have the wall made of flexible material (as a fabric) or if made of rigid material for the most part involve at least some flexible material (as in the joint) to permit motion.

This subclass is indented under the class definition. Dispensers having (1) a siphon, i.e., a discharge conduit having an outlet below the material level and an intermediate portion at an elevation above the material level so that once flow is started it will continue, combined with (2) a discharge assistant.
(1) Note. Inlets for discharge assistants (for example pump inlets) even though called siphons which do not function as siphons independently of the discharge assistant are not here, but are in the appropriate following subclasses; see subclasses 251+ and the subclasses referred to in the notes to the definitions thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:
251 see (1) Note.
416 for miscellaneous dispensers with siphons.

SEE OR SEARCH CLASS:
137, Fluid Handling, 123 for siphons, especially subclasses 130+ and 142+ for siphon starting means, and subclasses 132+ for periodic or level responsive siphons.

This subclass is indented under the class definition. Dispensers having both a supply and a trap chamber, and having feed means to cause feed from the supply to the trap other than gravity (including forming a vacuum in the trap to cause feed thereto), discharge from the trap being by gravity or by manual removal, i.e., by means not requiring a discharge assistant.
(1) Note. Where discharge assistant means are provided to assist in removing material from the trap chamber, see the appropriate following subclass, subclasses 251+ defining "discharge assistant" and see the notes to such subclasses for other such art.

SEE OR SEARCH THIS CLASS, SUBCLASS:
251 see (1) Note.
416 and 420 through 457, for other trap chamber combinations in which discharge from the trap is by gravity or manual removal.
576 and indented subclasses 577, 578+ and 583, for a dispensing inkwell including nongravity feed to a trap chamber which is a dip well.

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221, Article Dispensing, 191 for article dispensing devices in which the articles are delivered to stationary article supports for manual removal, and subclasses 255+ for article dispensers in which dispensed articles are retained by discharge assistant means for manual removal therefrom.

This subclass is indented under the class definition. Dispensers having one or more walls or portions thereof which may be distorted or deflected by application of a force, to expel material which wall or walls return to their original position when the force is removed.
(1) Note. The wall return motion may be due to its own resilience or due to a spring or other biasing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:
92 for collapsible wall containers.
150 for this subject matter with a cleaner for the dispenser outlet and see the reference to subclass 206 for the line.
202 for dispensers with means to jar or otherwise cause a wall to vibrate.
490 for outlets in the form of slitted resilient diaphragms or nipples.
491 where the resilient element, even though of wall form, is deflected by the pressure of the container contents to open the outlet.

SEE OR SEARCH CLASS:
92, Expansible Chamber Devices, 89 for collapsible wall type expansible chamber devices.
221, Article Dispensing, subclass 64 for article dispensers having flexible supply container walls, and subclass 65 for such dispensers having collapsible or telescoping supply container wall structure.
239, Fluid Sprinkling, Spraying, and Diffusing, 650 for a device comprising a container for nonfluid material and means to strew or scatter the material, and in which the container walls may be resilient or compressible.
401, Coating Implements With Material Supply, 183, wherein
the implement has a resilient-wall material container which is deformed by digital engagement to force the material either into or away from the container (to the applying tool).
417, Pumps, appropriate subclasses for collapsible wall pumps.
418, Rotary Expansible Chamber Devices, subclass 45 for a rotary expansible chamber device having a collapsible progressively deformed working chamber wall.
604, Surgery, subclass 185 and 212+ for bulb type syringes.

This subclass is indented under subclass 206. Dispensers in which there is (1) a supply container for material to be dispensed; and (2) a second chamber which receives material from the supply container and from which the material is delivered. The second chamber is usually a pump or pulsator and either or both the container and chamber has a resilient wall.

This subclass is indented under subclass 206. Dispensers in which either (1) a resilient wall type pump or pulsator generates fluid pressure for causing discharge of the material from the container, or (2) a removable flexible wall closure (that usually serves as a pump or pulsator) is provided.

SEE OR SEARCH THIS CLASS, SUBCLASS:
207 in which a removable resilient wall forcing device receives material from a supply container.
394 for other dispensers in which the material is caused to dispense by a fluid under pressure, and see the notes thereto.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 150 for collapsible bulb fluid pressure generating pumps for starting siphons.

This subclass is indented under subclass 206. Dispensers having a handle or handgrip connected to the dispenser container and by means of which the dispenser may be handled.
(1) Note. Where the handle or handgrip is connected only to a movable dispenser part to actuate the same, classification is with the type of element actuated, such actuating handles being in this subclass only when combined with a container handle or handgrip.

SEE OR SEARCH THIS CLASS, SUBCLASS:
323 for other container handles or handgrips for dispensers with discharge assistants.
441 for trap chambers with cutoffs combined with container handles or handgrips.
465.1 for miscellaneous dispenser-container handle and handgrip combinations.

This subclass is indented under subclass 206. Dispensers in which there is a pipe communicating with and constituting an extension of the dispensing outlet and extending internally of the receptacle. For the most part, these pipes extend to adjacent the receptacle bottom.

SEE OR SEARCH THIS CLASS, SUBCLASS:
214 for foraminous or apertured tubes within the receptacle constituting an element of the wall biasing means.
376 377 and 382, for internally extending outlet pipes in combinations involving a supply container with an encased impeller, follower, or other discharge assistant.
464.1 for miscellaneous dispensers with an internally extending outlet pipe.

This subclass is indented under subclass 206. Dispensers
having flow controllers or closures for openings in the dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for cleaners extending through a dispenser outlet, and see the note to subclass 150 for the line.
476 through 563, for other types of dispensers having flow controllers and closures, and also closures and/or flow controllers for resilient wall containers where characteristics pertaining to the resilient wall features are not claimed.

This subclass is indented under subclass 212. Dispensers provided with mechanism or connections between the flow controller or closure and one or more of the resilient walls so that flexure thereof causes operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:
150 for cleaners so operated, the note under such subclass stating the line.

This subclass is indented under subclass 206. Dispensers having means to bias or deflect one or more walls either to (1) cause them to return to their normal position after having been forcibly distorted or deflected, or (2) to deflect the same to cause discharge.

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401, Coating Implements With Material Supply, 156 for hand-manipulable coating implement having a resilient-wall reservoir and means to deform the wall either to fill the reservoir or to force material therefrom to the applying tool.

This subclass is indented under subclass 206. Dispensers
made of material at least part of which is not metallic.

SEE OR SEARCH THIS CLASS, SUBCLASS:
107 for corresponding collapsible wall receptacles.
209 for nonmetallic flexible wall pumps or pulsators, and nonmetallic, flexible wall, removable closures.

This subclass is indented under the class definition. Dispensers having means directed toward or moving in or through (1) the chambers or pockets of a conveyor type discharge assistant having trap chambers or transverse grooves, or (2) the material pocket of a movable trap chamber to stir or dislodge the contents thereof and acting at or near the discharge point.

SEE OR SEARCH THIS CLASS, SUBCLASS:
195 for gas agitation.
196 where the agitation and/or ejection is due to jarring and/or vibrating means.
226 and 251+, for agitators and/or ejectors in other combinations, subclass 342 having scrapers or wipers for or carried by a discharge assistant.
630 for fluid flow discharge.

SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, subclass 463.1 for a conveyor having load engaging elements and means for ejecting the load from the elements, and subclass 705 for a bucket type conveyor having means for ejecting loads from its buckets.
221, Article Dispensing, 233 for article dispensing devices having means for removing articles from movable segregating chamber structures.
406, Conveyors: Fluid Current, subclass 67 for rotary trap chamber discharge assistants feeding pneumatic conveyors, in which the fluid current clears the traps of material carried therein.

This subclass is indented under subclass 216. Dispensers having the agitator or ejector mounted on or in the conveyor or movable trap chamber and acting on or in the traps or grooves thereof.

This subclass is indented under subclass 217. Dispensers having a rotary conveyor or chamber with radial trap chambers and radially movable members therein, usually constituting movable bottoms for the trap chambers.

SEE OR SEARCH CLASS:
91, Motors: Expansible Chamber Type, 472, for rotary cylinder pumps or motors with reciprocating pistons.
417, Pumps, 269 and 462+, for rotary cylinder pumps with reciprocating pistons.

This subclass is indented under subclass 218. Dispensers having two diametrically opposite traps or a plurality of such trap pairs, each pair having a common ejector which moves alternately to the periphery of the rotor at opposite sides, ejecting at the trap that is in discharge position.

This subclass is indented under subclass 216. Dispensers having a conveyor with trap chambers or grooves and a rotary ejector having a projection, projections or a spiral flange meshing with the chambers or grooves at or near the discharge point to stir or dislodge material.

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342 for similar means for removing material from the discharge assistant at points other than the discharge point.

This subclass is indented under subclass 216. Dispensers having the agitator and/or ejector actuated by cam means.

This subclass is indented under subclass 216. Dispensers having an ejector so pivoted as to rest on the conveyor or movable trap chambers and enter the traps or grooves as they are presented successively at the discharge point.

This subclass is indented under subclass 222. Dispensers combined with an additional pivoted member which levels the charge in the trap or groove as it approaches the discharge point.
(1) Note. The two pivoted members are usually mounted in the same housing which serves as a cover for the outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
350 for pivoted strikers not combined with ejectors.

This subclass is indented under subclass 216. Dispensers in which the ejector terminates in a ball or roller having roller contact with the conveyor or movable trap chambers and entering the traps or grooves in turn.

This subclass is indented under subclass 216. Dispensers having an ejector element of resilient material, the ejector being biased to enter the traps or grooves.

SEE OR SEARCH THIS CLASS, SUBCLASS:
206 for resilient wall dispensers.

This subclass is indented under the class definition. Dispensers having means of the agitator type adapted to mix the material to be discharged and/or move it toward the discharge outlet and either, or both, (1) a discharge assistant acting on the material subsequently or (2) a subsequent cutoff interconnected with the agitator means for operation simultaneously therewith. The first of a series of discharge assistants is considered an agitator if it is not a follower, pump, or pulsator or a conveyor type or movable trap chamber.
(1) Note. Cut-offs or other discharge controllers or closures for dispenser outlets and also other movable dispenser outlet elements having actuating means which contact the material being discharged, but which actuating means have neither added features of structure for, nor particular relationships to cause, agitation are not in this nor the indented subclasses, but are in the appropriate following subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for agitator type discharge assistants not having a cut-off interconnected therewith and for discharge assistants other than agitators as above defined combined with cut-offs, see particularly subclasses 310+, 356, 357, 380, 387, and 400.
252 for serially arranged discharge assistants where the first of the series is not an agitator as above defined.
505 for movable outlet elements with relatively movable actuating means.
510 for movable outlet elements having a rod actuator passing through the dispenser container.

SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, appropriate subclasses for serially arranged conveyors, including 570+.
221, Article Dispensing, 200 for article dispensers including means to agitate, vibrate or jar the articles in the supply container. See also subclasses 182, 183+ and 202+ for article dispensing combinations involving agitating means mounted on, incorporated in, or otherwise interrelated with
discharge assistants for operation therewith.
366, Agitating, particularly 184 for specified discharge means.

This subclass is indented under subclass 226. Dispensers having at least three discharge assistants or two discharge assistants and a discharge controller arranged for successive action on the material being discharged.
(1) Note. Sets of two or more elements having the same function are included as only a single assistant, as are other plural elements which act together as a single device, such as the plural vanes or blades of screws or propellers.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 201 for devices including at least three means for assisting the discharge of articles from the supply container, at least one of said means being an agitating, vibrating or jarring means.

This subclass is indented under subclass 226. Dispensers in which the first means is a flexible or freely pivoted element mounted on a second means movable about an axis, the first means partaking of the rotary or swinging motion, but having additional unconstrained movements determined by the resistance of the material.

This subclass is indented under subclass 226. Dispensers in which the agitating means and subsequent serially arranged means are axially aligned and so related to each other and the container that axially longitudinal movement of one is translated into axially rotary movement of the other, or both have combined axially rotary and longitudinal movement.

This subclass is indented under subclass 226. Dispensers in which the agitating means comprises a resilient or resiliently mounted means so constructed and organized as to have a definite agitating function, and which operates to bias the serially arranged subsequently acting means.

SEE OR SEARCH THIS CLASS, SUBCLASS:
336 for discharge assistants having biasing means, which means have no added features of structure for, nor particular relationship to cause, agitation.
511 for movable dispenser outlet elements having biasing means, which means have no added features of structure for, nor particular relationship to cause, agitation.

This subclass is indented under subclass 226. Dispensers in which the interconnection between the first and second means consists in a mere contact or abutting relation of the means which transmits the movement of one to the other.

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196 for discharge assistants in series and having direct operating connection (1) where the relationship is between two vibrating members, (2) where the operation of either is vibratory and not limited to a single stroke for each discharge cycle of the other, or (3) where the vibrating member carries all or part of the supply load.

This subclass is indented under subclass 226. Dispensers having one rotary means (i.e., the agitator, discharge assistant or valve is rotary) to which the other means (which may be rotary or nonrotary) is connected for relative motion at a point removed from the axis, as by a crank, cam, or other eccentric element.

This subclass is indented under subclass 226. Dispensers in which at least one of the serial means rotates and at least one reciprocates (including oscillates).

SEE OR SEARCH THIS CLASS, SUBCLASS:
404 for miscellaneous compound motion discharge assistants.

This subclass is indented under subclass 233. Dispensers in which the means that reciprocates is not pivoted.

This subclass is indented under subclass 234. Dispensers in which the first of the series, i.e., the agitator, is rotary.

This subclass is indented under subclass 226. Dispensers in which each of the serially arranged means rotates about an axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for plural rotary discharge assistants and trap chambers arranged in sets.
293 and 311+, for rotary devices with discharge volume varying means.
367 for rotary trap chambers.
410 for miscellaneous rotary discharge assistants.

This subclass is indented under subclass 236. Dispensers in
which the serial means comprise juxtaposed rings or plates rotating in opposite directions, or at different speeds in the same direction.

This subclass is indented under subclass 236. Dispensers in which the axes of the serial rotary means are parallel or substantially so.

This subclass is indented under subclass 236. Dispensers in which the serial rotary means have a common axis.

This subclass is indented under subclass 239. Dispensers having (1) the first of the serial means (i.e., the agitator) in the form of a screw, helix, or one or more vanes, and (2) the second means operating at the discharge end thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:
241 for combinations where the agitator is not of screw, helix, or vane but a following discharge assistant is.

This subclass is indented under subclass 239. Dispensers in which (1) the agitator (first of the series) is of any form, and (2) a following discharge assistant is in the form of a screw, helix, or one or more vanes.

SEE OR SEARCH THIS CLASS, SUBCLASS:
240 for this combination where the agitator is of screw, helix, or vane form.

This subclass is indented under subclass 239. Dispensers having the first or agitator means (which may be merely one or more projections), mounted rigidly on a second means in the series, either axially or eccentrically.
(1) Note. If the mounting is on a common shaft or support rather than direct, see the preceding subclasses.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 203 for article dispensing devices having rotary agitating means rigidly mounted on discharge assistant means.

This subclass is indented under subclass 226. Dispensers in which all of the serially arranged means reciprocate (including oscillate).

SEE OR SEARCH THIS CLASS, SUBCLASS:
275 for plural reciprocating (including oscillating) discharge assistants arranged in sets.
361 for reciprocating (including oscillating) trap chambers.
409 for miscellaneous reciprocating (including oscillating) discharge assistants.

This subclass is indented under subclass 243. Dispensers having the serial means relatively movable in parallel planes.

This subclass is indented under subclass 243. Dispensers having one of the serial means reciprocating about a pivot
(oscillating) and a second means reciprocating, but not pivoted. Such means may occur in any sequence.

This subclass is indented under subclass 243. Dispensers having the serial means moving toward and away from the outlet and along or parallel to the axis of the outlet.
(1) Note. Where the outlet from the receptacle is a bent conduit, the motion is along or parallel to at least that portion thereof that communicates with the receptacle interior.

This subclass is indented under subclass 243. Dispensers having the serial means all reciprocating about pivots (i.e., oscillating).

This subclass is indented under subclass 247. Dispensers in which the serial means are rigidly connected or integral and oscillate together as a unit.

This subclass is indented under the class definition. Dispensers having a chamber containing a piston impelled successively in opposite directions by material entering under pressure, the material in the contracting side being expelled by the piston movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:
253 for material operated differential piston.

SEE OR SEARCH CLASS:
73, Measuring and Testing, 239 for reciprocating piston
meters. A device as defined in this subclass (249) having means controlled by piston movement, material pressure, etc., for reversing the flow control means to admit the material to the contracted chamber and thus be continuously operated so long as material flows, is considered a meter.
417, Pumps, 392, for pumps having a single piston common to motor and pump chambers.

This subclass is indented under subclass 249. Dispensers having means for varying the capacity of the chamber and/or the stroke of the piston to vary the volume discharged.

SEE OR SEARCH THIS CLASS, SUBCLASS:
282 and see the notes thereto for other combinations involving discharge volume varying means.
309 for adjustable stops for limiting the movement of a pump piston, pulsator, or follower in a chamber to vary the discharge volume.

This subclass is indented under the class definition. Dispensers having one or more discharge assistants, as impellers, pumps, conveyors, or movable trap chambers, as defined in Lines With Other Classes and Within This Class, Discharge Assistants (e.g., Impellers, Pumps, Conveyors, Movable Trap Chambers, Etc.), in the main class definition.
(1) Note. Elements suspended in supply containers for movement by pressure of the material and/or gravity to prevent material bridging are in this subclass (251).
(2) Note. In subclass 416 siphons are considered as means to be excluded by the above definition.
(3) Note. Any preceding subclass may have the subject matter defined as going into this and the indented subclasses, in particular combinations hereinbefore provided for. Those considered worth special mention are set forth in notes to this and the indented subclasses. Also noted are those subclasses which follow this group that have subject matter sufficiently related to be specially mentioned.
(4) Note. See Lines With Other Classes and Within This
Class, Pumps, for notes to related subject matter in other classes.

SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for gas or vapor dispensers and such dispensers combined with means to dispense liquids and solids, i.e., nongaseous materials. Where gases or vapors are used for the purpose of causing nongaseous materials to be dispensed but there are no means for dispensing the gases or vapors other than to the nongaseous material dispenser and/or venting the same, the patent is not in subclass 3, but in subclasses 251+ or other preceding subclass appropriate to the type of nongaseous material dispenser.
9 for article dispensers.
80 particularly subclass 82 for cutter and/or punch combinations.
92 for combinations with a collapsible wall receptacle.
129 where there are plural sources from which to dispense plural compartments or receptacles with means to dispense from at least one or a receptacle with a spaced jacket.
160 where dispenser supply receptacle is mounted for motion.
173 where a casing or support for the dispenser is claimed, particularly subclass 177 for combinations where a vehicle ground engaging wheel is interconnected with a discharge assistant to operate the same.
195 where a gas is used to agitate the material to be dispensed.
196 where dispensing is aided by jarring dispenser parts or having vibrating dispenser parts.
204 where a siphon is combined with a nongravity discharge assistant.
206 where one or more walls or portions thereof are resilient.
216 where there is an agitator or ejector so related to (1) a conveyor type discharge assistant having trap chambers or grooves, or (2) a movable trap chamber, as to stir or otherwise help to dislodge material therein.
226 for combinations of discharge assistants and/or movable trap chambers serially arranged, the first discharge assistant of the series to operate on the material dispensed being an agitator.
249 for dispensers having a floating piston movable
alternately in opposite directions to discharge material.
416 see (1) Note.
425 through 458, for nonmovable trap chambers.
464.1 for dispensers comprising a container and internally extending outlet pipe so arranged that suction is necessary to cause discharge, no suction means being claimed.
491 for dispenser outlets having movable elements (such as flow controllers, closures, nozzles, or other discharge guides) which are caused to move due to pressure of the material to be dispensed, the means for creating such pressure not being claimed.
576 and indented subclasses 577, 578+ and 583 for a dispensing inkwell including a discharge assistant.
630 where a flowing fluid picks up and carries the material to be dispensed.

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65, Glass Manufacturing, 324 for glass melt dispensing means including a discharge assistant.
137, Fluid Handling, 565.01 for distribution systems comprising pumps.
221, Article Dispensing, 208 for article dispensing devices having discharge assisting means.
401, Coating Implements With Material Supply, 143, wherein the implement includes force-producing means for either filling the reservoir thereof or for moving material from the reservoir to the applying tool.
414, Material or Article Handling, appropriate subclasses (e.g., 209+, 304+, etc.) for a chamber, receptacle, or other load holder provided with a driven or nongravity type of material discharging means, and other appropriate subclasses (e.g., 216, 328+, etc.) for a chamber, receptacle, or other load holder which discharges material by gravity, and wherein a guide, gate, or other flow-affecting device is provided.

This subclass is indented under subclass 251. Dispensers having at least two distinct discharge assistants claimed in combination.
(1) Note. The plurality may be arranged in series and/or in
parallel. One may be an arrangement to apply fluid under pressure directly to the material to be dispensed to cause dispensing.
(2) Note. Plural elements which act together as a single discharge assistant have been so treated (as plural vanes or blades, plural screws, plural movable sequentially operable traps, etc.) but where pumps or pulsators have plural chambers, each chamber having a forcing device therein, the structure has been treated as plural and not as a single pump or pulsator with plural cylinders.

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135 for this subject matter where there are at least two sources of material to be dispensed.
216 for combinations of agitator and/or ejector for removing and/or assisting in removing material from either (1) a conveyor type discharge assistant having trap chambers or grooves, or (2) movable trap chambers.
226 for this subject matter in series arrangement, the first of the series being an agitator.

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100, Presses, 138 for diverse type presses not otherwise classified in which one of the presses is of the type which forwards material while it compresses it.
198, Conveyors: Power-Driven, appropriate subclasses for plural conveyors, including 570+.
221, Article Dispensing, 224 for article dispensing devices having plural discharge assisting means or discharge assisting means combined with manipulating means.

This subclass is indented under subclass 252. Dispensers having two forcing devices, a quantity being fed by one device at one pressure, the second forcing device taking a part of such quantity and delivering it under higher pressure to the point of use by energy derived from the said quantity.

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417, Pumps, 225, for pumps in which a quantity of fluid at one head is divided with the head of one portion being utilized to increase the head of the other.

This subclass is indented under subclass 252. Dispensers having three or more distinct discharge assistants arranged in series, i.e., the material from the supply chamber is operated upon by the first of series, and the others of the series sequentially operate upon the same until it is discharged.

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227 for this subject matter in series arrangement, the first of the series being an agitator.

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221, Article Dispensing, subclass 225 for article dispensing devices having three or more distinct discharge assistants or manipulating means arranged to serially act on articles to be dispensed and see also subclass 201 for similar combinations in which at least one of the means is an agitating means.

This subclass is indented under subclass 252. Dispensers in which all the discharge assistants are pumps.

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254 for plural dispensing pumps with one or more discharge assistants of other types.

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137, Fluid Handling, 565.29 for distribution systems comprising plural

This subclass is indented under subclass 252. Dispensers having two discharge assistants, one being a follower and one being a casing enclosed impeller (such as a pump or a pulsator).
(1) Note. For the most part, the follower acts on the
material in the supply container while the casing enclosed impeller receives material therefrom and discharges the same.
(2) Note. Discharge assistants, even though casing enclosed, which will not operate to increase pressure on the material dispensed, were not considered casing enclosed impellers. Those functioning merely to convey without increase in pressure or merely to agitate are examples.

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372 for supply containers having no means for creating pressure on the contents which deliver to a chamber enclosing an impeller (i.e., a pump or pulsator) or to a chamber having a follower or other form of discharge assistant and from which the material is in turn discharged, and see the notes to such subclasses for related art.
386 for containers having a follower therein, and see the notes for related art.

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221, Article Dispensing, 226 for article dispensing devices having plural discharge assisting means or discharge assisting means combined with manipulating means and in which at least one of the discharge assisting means is of the follower type.

This subclass is indented under subclass 256. Dispensers in which the tubular outlet through which the material is dispensed is movably mounted on the dispenser, which tubular outlet is interconnected with at least one of the two discharge assistants (follower or casing enclosed impeller) as defined in subclass 320.
(1) Note. Where the nozzle is so mounted on the dispenser as not to be movable relative thereto, it is not in this or the indented subclasses, even though the nozzle is made of flexible material (as a hose) and is capable of motion due to this fact. Also where the nozzle is movably mounted on the dispenser, but the defined interconnection is not present, it is not in this and the indented subclass, but in other appropriate subclasses.

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320 where there is a single discharge assistant.
344 for movable trap chambers and conveyor type trap
chambers resembling movable nozzles, particularly subclasses 361+.
492 499, 513+, 519+, 522+, and 526+, for movable nozzles not associated with discharge assistants.

This subclass is indented under subclass 257. Dispensers which utilize either fluid under pressure or a motor to operate either or both the follower or impeller.
(1) Note. The motor may be of any type including those operated by fluid pressure and may directly operate the discharge assistants or it may operate devices which develop fluid pressure which in turn operates to apply pressure to the discharge assistant.

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261 through 263, for other combinations of plural discharge assistants with motors or utilizing fluids under pressure.
333 and the notes thereto, for other motor combinations.
394 and the notes thereto, for other fluid pressure combinations.

This subclass is indented under subclass 257. Dispensers in which the follower and the casing enclosed impeller are both (1) either arranged coaxially or with their axes parallel and (2) interconnected.
(1) Note. The interconnection may be that the casing enclosed impeller is arranged to pass into or through an opening in the follower.

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260 for this subject matter where there is no interconnection between one of the discharge assistants and a movable nozzle, even though the nozzle is movably mounted on the dispenser.

This subclass is indented under subclass 256. Dispensers in which the follower and the casing enclosed impeller are both (1) coaxial or with their axes parallel and (2) interconnected.
(1) Note. The interconnection may be that the casing enclosed impeller is arranged to pass into or through an opening in the follower.

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259 where there is also an interconnected movable nozzle.
378 for coaxially arranged outlet nozzle, supply container and single discharge assistant.

This subclass is indented under subclass 260. Dispensers which utilize either fluid under pressure or a motor to operate either or both the follower or impeller.

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258 and see the notes to the definition therof for related subject matter.

This subclass is indented under subclass 256. Dispensers utilizing either fluid under pressure or a motor to operate either or both the follower or impeller.

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258 and see the notes thereto for related subject matter.

This subclass is indented under subclass 252. Dispensers utilizing either fluid under pressure or a motor to operate one or more of the plural discharge assistants, or one or
more fluid pressure discharge assistants.

SEE OR SEARCH THIS CLASS, SUBCLASS:
258 and see the notes thereto for related subject matter.

This subclass is indented under subclass 252. Dispensers having two or more co-axial rotors with axially opening trap chambers or a single rotor with two or more concentric rows of such trap chambers, so that two or more discharge paths for material are provided.
(1) Note. Where there are co-axial rotors they may lie in the same plane, as one being an annulus surrounding the other.

This subclass is indented under subclass 252. Dispensers having plural discharge assistants all of which perform substantially the same function and have similar structure, so that the general effect is duplication of dispensing units.
(1) Note. Such means may be of unitary structure where it provides plural separate discharge paths even though they all deliver to a common outlet, but a unitary device which both provides a single discharge path and delivers to a single outlet is classified as a single discharge assistant.
(2) Note. Plural discharge assistants which are alternatively usable only may be considered to be in sets if they have similar structure. If the structures are dissimilar, see subclasses 278+.
(3) Note. Plural discharge assistants, even though they move in different directions, which are so related as to form a single outlet between them and thus move material therethrough in the same general direction are not considered to be in sets, see subclasses 280+.
(4) Note. Discharge assistants having plural vanes or blades movable as a unit and all of which move the material in a single discharge path to a single outlet are not considered to be plural discharge assistants.
(5) Note. A single rotor having plural vanes is regarded as
being in sets only if each has a separate discharge outlet associated with it.

SEE OR SEARCH THIS CLASS, SUBCLASS:
278 see note 2.
280 see note 3.

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73, Measuring and Testing, 426 for receptacles provided with separable partition means which are applied to the receptacle to divide its contents into a plurality of measured charges.

This subclass is indented under subclass 265. Dispensers having means to prevent discharge from certain of the discharge assistants while others are in use, i.e., having some means by which the desired one or more discharge assistants are caused to be operative to discharge while the other one or more are prevented from causing discharge (whether maintained in motion or not).
(1) Note. Individual discharge controllers for each outlet or discharge assistant path are not included, see subclasses 310+.

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278 for alternatively usable discharge assistants of different types, where the arrangement provides for discharging from one at a time only. Plural devices comprising a unitary rotor structure are ordinarily considered of similar types, even though the several devices have different characteristics.
310 see note 1.

This subclass is indented under subclass 265. Dispensers in which unitary or interconnected means is provided for changing the discharge capacity of all the discharge assistants.

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282 for discharge volume varying means for devices not arranged in sets and see the notes for other combinations having such means.

This subclass is indented under subclass 267. Dispensers in which the devices whose discharge volume is varied are rotors.

This subclass is indented under subclass 265. Dispensers having a supply receptacle having a sectional bottom or wall construction, each section being related to one of the discharge assistants.

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270 where miscellaneous means are provided within the supply receptacles for guiding material to the discharge assistant.
329 for movable or removable depending cups for discharge assistants of rotor form.

This subclass is indented under subclass 265. Dispensers having means within the supply receptacle for guiding material toward the adjacent discharge assistants.

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269 for sectional walls related to the discharge assistant.
328 for similar guides for dispensers having single discharge assistants.

This subclass is indented under subclass 265. Dispensers in
which the discharge assistants rotate each around its own axis.

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233 and 236+, for such subject matter having a serially arranged preceding agitator.
282 particularly 293+, and 311+, for rotors with discharge volume varying means, the rotors not being arranged in sets.
344 particularly subclasses 367+, for miscellaneous rotary conveyor type or movable trap chambers.
410 for miscellaneous rotary discharge assistants (not of the conveyor type trap chamber or movable trap chamber type).

This subclass is indented under subclass 271. Dispensers having discharge assistants related as right hand and left hand members moving the material in opposite directions either toward the same outlet or simultaneously toward different outlets.
(1) Note. Drum and cup type rotors having oppositely directed material contacting faces are not included, see subclasses 273+.

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273 see note 1.
280 where plural discharge assistants form a single opening between them, and thus operate together to move material between them in the same general direction.

This subclass is indented under subclass 271. Dispensers in which the rotary devices are coaxial or substantially so.

This subclass is indented under subclass 273. Dispensers in which the rotary devices are substantially spaced along the common axis.

This subclass is indented under subclass 265. Dispensers in which the discharge assistants reciprocate (including oscillate).

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243 for serially arranged devices, the first being an agitator, all having such motion.
361 for conveyor type or movable trap chambers having such motion.
409 for miscellaneous discharge assistants having such motion.

This subclass is indented under subclass 275. Dispensers having unitary or rigidly connected discharge assistants forming a set.

This subclass is indented under subclass 276. Dispensers having a to and fro movement about an axis.

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177, Weighing Scales, 94 and 115 for an oscillating weigh chamber.

This subclass is indented under subclass 252. Dispensers in which each of the plural discharge assistants is used or
intended to be used by itself.
(1) Note. These devices are usually separately usable depending upon the type of material placed in the dispenser, or to give a different mode of discharge of the same type of material.

SEE OR SEARCH THIS CLASS, SUBCLASS:
265 for devices arranged in sets, note 2 of subclass 265 stating the line, subclass 266 having devices arranged in sets with means for selecting less than all for discharge.
288 for interchangeable, removable or selectively usable discharge assistants or elements and see the notes thereto for the line.

This subclass is indented under subclass 278. Dispensers having means such as removable or shiftable covers or baffles for preventing access of material to the discharge assistant that is not in use.

This subclass is indented under subclass 252. Dispensers having the plural devices forming the edges, walls, or borders of a single discharge outlet and all movable together to cause material motion through such single outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
198 for outlets bounded or formed by plural vibrating members.
265 for devices arranged in sets, and see note 3 for the line.

This subclass is indented under subclass 280. Dispensers in which the plural devices are all in the form of parallel rotary rolls (drums) of any cross sectional shape.

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271 for rotary sets, and see the notes thereto.

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100, Presses, 155 for roll type presses, not elsewhere classified, for concurrently pressing and conveying material.

This subclass is indented under subclass 251. Dispensers having means to vary the output (discharge volume) from the discharge assistant for a given cycle of operation.

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14 especially subclass 21, for preset means for selective dispensing of different volumes from a dispenser.
134 for dispenser involving plural sources and having interconnected discharge volume varying means.
163 for supply receptacles mounted for motion for discharge volume varying purposes.
250 for dispensers having a floating piston with plural or alternate discharge paths and discharge volume varying means.
266 where there are plural discharge assistants arranged in sets and discharge volume is varied by selecting less than all for discharge.
267 where there are plural discharge assistants arranged in sets with common discharge volume varying means.
278 for plural alternatively usable discharge assistants which may discharge different volumes.
434 for trap chamber cutoff combinations with discharge volume varying means, the trap chamber not being movable.

SEE OR SEARCH CLASS:
92, Expansible Chamber Devices, 13 for stroke varying means for expansible chamber devices.
198, Conveyors: Power-Driven, for a conveyor having means for controlling the flow of conveyed material, particularly 525, 577, 670, and 761.
221, Article Dispensing, 241 for article dispensing devices having means to adjust the size of the device to accommodate different size articles, and subclasses 206+ for article dispensing devices having quantity preselection means included therewith.
417, Pumps, appropriate subclasses for pumps with capacity varying means.
418, Rotary Expansible Chamber Devices, 16 for capacity varying means for rotary expansible chamber pumps.

This subclass is indented under subclass 282. Dispensers having two or more independent means for varying the discharge volume.
(1) Note. Sectional devices, each part of which controls a corresponding part of the outlet are not considered plural. See appropriate following subclasses.

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486 for plural discharge controllers for plural dispensing outlets variably related.

This subclass is indented under subclass 282. Dispensers having a plurality of conveyor type or movable trap chambers, usually joined, so arranged that discharge can be terminated after any desired number have been discharged. Endless and drum types are included when provided with detent means to check movement after a variable number of chambers have been discharged.

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436 for nonmovable trap chambers in series for discharge volume varying.

This subclass is indented under subclass 282. Dispensers
having (1) an element forming part of or carried by the source of supply and (2) a discharge assistant movable relatively to each other in a direction axial to the source outlet to widen the discharge path, place varying areas of the discharge assistant in operative position or otherwise vary the output.

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163 for supply receptacles mounted for movement for discharge volume varying purposes.

This subclass is indented under subclass 285. Dispensers having the section of the discharge conduit or receptacle adjacent the discharge assistant telescopically related to the main part for adjustment.

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100, Presses, 144 for presses not elsewhere classified, in which material is concurrently compressed and conveyed.

This subclass is indented under subclass 282. Dispensers having a relatively movable actuator for the discharge assistant which embodies the output adjusting means.

This subclass is indented under subclass 282. Dispensers having a part or parts of the discharge assistant means exchangeable or removable bodily or to an inoperative relation or position to vary the output.
(1) Note. The discharge assistant may have its capacity or its mode of operation changed, as from conveyor type trap chamber to conveyor type, but it remains in use as the discharge assistant, as distinguished from alternatively usable discharge assistants, where one goes out of use.

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278 for alternatively usable devices.

This subclass is indented under subclass 288. Dispensers in which the part or parts are reversible in their relation to the rest of the device to bring one of two alternatively usable elements into operation. Mere shifting of a rotary or pivoted part about its usual axis is not considered reversibility.

This subclass is indented under subclass 282. Dispensers having a means for conveying material past the outlet and adjustably positioned means for deflecting a desired part of the material into the outlet.

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408 for similar structure having no volume varying means claimed.

This subclass is indented under subclass 282. Dispensers having a movable discharge assistant having blades or other projections which are alternatively projected from and withdrawn into the body of the discharge assistant as it moves, and means to vary the extent of maximum projection.

This subclass is indented under subclass 282. Dispensers having a rotary conveyor type discharge assistant or rotary trap chamber with radially movable projections or trap elements interconnected to be adjusted by a common means.

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303 for rotor parts having traps or grooves and a second
rotor part having elements to block the traps or grooves, the two parts being relatively adjustable axially.

This subclass is indented under subclass 282. Dispensers in which there is a rotor, which is made up of at least two rotor parts, each rotary about the same axis, with means to relatively adjust the same to vary the discharge volume.
(1) Note. These are of two general types, (1) those in which the two rotor parts extend radially about the same axis (including complete annuli) and swing or rotate about such axis for adjustment, and (2) those in which the two rotor parts are axially adjacent or spaced and move axially for adjustment.
(2) Note. A rotor form element must be either (1) symmetrically disposed about the axis of the whole rotor, or (2) mounted on the axial support of the whole rotor.
(3) Note. The adjustment is usually to either change a trap chamber size or to change the size of a material passage through or past the rotor.

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268 for sets of rotors with common discharge volume varying means.
311 for rotors with discharge controllers acting as discharge volume varying means.
367 for miscellaneous rotary trap chambers and see the notes thereto for other rotors.

This subclass is indented under subclass 293. Dispensers having the rotor form parts, each of generally disk or annular form, of substantially equal diameter and coaxial, and adjustable relative to each other by a motion of rotation about the axis of rotation to change the discharge volume.

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302 for disks adjustable linearly along the axis for volume adjusting purpose.

This subclass is indented under subclass 293. Dispensers having the rotor form parts adjustable relatively to each other linearly in the direction of the axis of rotation to vary the discharge volume.

This subclass is indented under subclass 295. Dispensers comprising a disk rotor having a face contacting the material and a rotor member having pins which project through or past the disk in the direction of the axis of rotation, at least a portion of the pins being in the material passage formed in part by the material contacting face of the disk, the pins and disk being relatively axially adjustable.
(1) Note. The pins may have any shape in cross-section.

This subclass is indented under subclass 295. Dispensers having one rotor part of a generally cup shape, with the material discharge path along the inner wall of the cup, the cup rotating about its center on a horizontal axis, the cup volume being varied by an axially adjustable rotor part.
(1) Note. The cup may be divided into plural pockets.

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315 for horizontal axis cup rotors having a discharge controller to vary discharge volume.

This subclass is indented under subclass 295. Dispensers having at least one grooved or trap carrying rotor part bodily movable in and/or through a discharge channel and relative to another rotor part so as to vary either (1) the area available for passage of the material or (2) the
character of the means acting on the material to produce discharge.

This subclass is indented under subclass 298. Dispensers having means associated with axially adjustable rotor parts to block the portion of the discharge channel not directing material to or from the discharge effecting portion of the rotor.
(1) Note. Such channel blocking means is not independent of the slidable rotor part and usually is movable an amount proportionate to the slidable adjusting motion thereof.

This subclass is indented under subclass 299. Dispensers having the channel blocking means comprising in part at least a sleeve which does not rotate.
(1) Note. The sleeve is usually slidably adjustable.

This subclass is indented under subclass 298. Dispensers in which one rotor part is peripherally fluted and another is a correspondingly interiorly fluted annular disk-like member, the interior flutes of which interfit with the peripheral flutes, the annular disk bearing on the stationary structure and closing the space between it and the first rotor part (to thereby prevent material leakage).

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299 and 300, in which search must be completed.

This subclass is indented under subclass 295. Dispensers in which the axially adjustable rotor parts each have at least
one material passage extending therethrough in alignment with each other and parallel to the axis of rotation.
(1) Note. The two material passages generally have telescopic interengagement so that relative axial adjustment changes the volume of the passage, the passage functioning as a trap chamber, receiving material at one location and discharging it at another. Usually the two rotor elements are constructed to have plural such chambers which sequentially fill at one location and discharge at another.

This subclass is indented under subclass 295. Dispensers in which one rotor part has either (1) one or more trap chambers therein, or (2) peripheral grooves, and the second relatively adjustable rotor part has one or more elements to block or fill such trap chambers or grooves to different extents to vary their volume upon relative axial adjustment.

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292 for related structures where the relative motion is radial of the rotor.

This subclass is indented under subclass 303. Dispensers in which the relative axial adjustment is between a single trap chamber coaxial of one rotor part and an axially adjustable wall or block forming the other rotor part.

This subclass is indented under subclass 282. Dispensers having means for varying either the actual or the effective capacity of material traps of the conveyor or movable chamber type.

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344 for conveyor type or movable trap chambers not having volume adjusting means.

This subclass is indented under subclass 305. Dispensers having trap chambers with a single opening for both the entrance and discharge of the material received from the supply and having only the wall opposite the opening, i.e., the bottom of the trap chamber, adjustable to vary the capacity of the trap chamber.

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444 and see the notes thereto, for other trap chambers having inflow-outflow passages.

This subclass is indented under subclass 305. Dispensers having at least one wall of the trap chamber adjustable by bodily inward or outward movement to the same extent in all its parts to vary the capacity of the trap chamber.

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304 for axial pocket rotary trap chambers having an adjustable wall to vary the capacity.
440 for straight line motion adjustable walls for stationary trap chambers.

This subclass is indented under subclass 307. Dispensers having the wall adjustable by screw means.

This subclass is indented under subclass 282. Dispensers in which a pump, piston, pulsator or follower is caused to move through a chamber to eject or force material the volume delivered being varied by adjusting a stop means which limits the motion of the forcing device or the position of the ejecting means with reference to a stationary stop.
(1) Note. There may be plural spaced stops selectively movable to operative position, which plural stops may, in addition, be individually adjustable, or there may be a single adjustable stop means. Such stop means may be carried or supported in any way to perform their function, as on the frame, container, or movable forcer element.

SEE OR SEARCH THIS CLASS, SUBCLASS:
250 for discharge volume varying means including adjustable stop, for floating pistons having plural or alternate discharge.

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73, Measuring and Testing, subclass 429, for measuring vessels having adjustable bottoms but in which the bottom is not adapted to force the material from the container.
92, Expansible Chamber Devices, 13 for stroke adjusting means for expansible chamber devices.

This subclass is indented under subclass 282. Dispensers having the discharge capacity varied by means of movable gates, valves, or other discharge controller.

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417 and the subclasses following the same, for dispensers having gates, valves, closures, and other discharge controllers in various combinations not involving a discharge assistant.

This subclass is indented under subclass 310. Dispensers having a rotary discharge assistant and a discharge controller for varying the discharge volume by relative adjustment therebetween.
(1) Note. Many of the preceding subclasses indented under subclass 282 have rotors with other types of discharge volume varying means, all conveyor type or movable trap chambers with trap capacity varying means being in preceding subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:
282 see note 1 above.
367 and see the notes thereto for other rotary conveyor type and movable trap chambers.
410 and see the notes thereto for other rotary discharge assistants.

This subclass is indented under subclass 311. Dispensers having the variable material passage between a drum type rotor and the discharge controller.

This subclass is indented under subclass 312. Dispensers having the discharge controller urged toward a desired position by spring, weights or other biasing means.

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511 and see the notes to the definition thereof for biased flow controllers in other combinations.

This subclass is indented under subclass 312. Dispensers having a nonpivoted discharge controller movable in a single plane toward and from the rotor.

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351 for a similarly movable element forming a striking or clearing element for a conveyor type trap chamber.

This subclass is indented under subclass 311. Dispensers in
which the rotary discharge assistant is of cup shape rotating on a horizontal axis, material flow being from the supply to the interior of the cup to discharge, the discharge controller varying the size of the material passage inside the cup to vary discharge volume.

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297 for discharge assistants of this type having axially adjustable rotor parts for varying the discharge volume.

This subclass is indented under subclass 311. Dispensers having the discharge controller made up of two or more sections each controlling part of the discharge path.
(1) Note. The sections are usually independently biased or adjusted.

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502 for miscellaneous dispensers having sectional discharge controllers.

This subclass is indented under subclass 311. Dispensers having the discharge controller in advance of the rotor, i.e., on the side of the rotor that receives material to be dispensed.
(1) Note. The discharge controller usually is adjustable relative to a container wall to vary the size of the passage leading to the rotor.

This subclass is indented under subclass 251. Dispensers in which material being dispensed may be by-passed around the pump, forcer, movable trap chamber or other discharge assistant, either (1) from the inlet side thereof to the discharge side thereof, (2) from the discharge side thereof back to the inlet side, (3) from the discharge side back to the supply, or (4) any combination of the preceding.

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72 for volume or rate of flow meter by-pass arrangements.
108 for drip, leakage, or waste catching or disposal, including return to supply.
330 for discharge assistants having plural outlets not involving a by-pass or return to supply.
345 for striking and clearing means for conveyor type and movable trap chambers.
375 for miscellaneous casing enclosed discharge assistants and provided with antileak or antisiphon means.
424 for miscellaneous dispensers not having discharge assistants provided with means to return material to the supply.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclasses 563-564.5 for closed circulation type distribution systems, subclass 569 for systems having a pump and a bypass for it, or subclasses 599.01-601.21 for systems dividing into a parallel flow lines then recombining.
221, Article Dispensing, 159 for article dispensing devices including means to orient the dispensed articles and having means to return to supply such articles as are not properly oriented.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 90 and 124+ for spraying systems having means to bypass some of the fluid back to the supply, or to vent the system by permitting the fluid to escape to the atmosphere other than through the usual spray outlet.
406, Conveyors: Fluid Current, subclass 105 for by-pass means around the fan.
417, Pumps, 279 and 440+ for pumps with by-pass valves.

This subclass is indented under subclass 251. Dispensers in which the outlet for material to be dispensed from a supply receptacle or trap chamber is above the material surface level thereof, and there are structural means (as distinguished from fluids) which enters the mass of material in a supply receptacle, with a resultant displacement of a
volume of material equal to the volume of that portion of the structural means that has entered the material, and thus cause the upper surface of the material to rise to or above the level of the outlet to overflow for discharge or for a step preliminary to discharge.

SEE OR SEARCH THIS CLASS, SUBCLASS:
373 for devices which introduce a liquid into contact with the material in a trap chamber to displace the material.
395 for devices which introduce liquid into a supply chamber into contact with the material to displace the same.
405 for miscellaneous discharge assistants which cause discharge from the top of the supply.

SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, subclass 14, for such means for feeding water to acetylene generators.
137, Fluid Handling, subclass 101.11 for such means in a fluid handling system.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 245 for such means associated with filling apparatus.

This subclass is indented under subclass 251. Dispensers in which (1) the nozzle is connected to and bodily movable with a follower, (2) the nozzle is movable relative to the dispenser container and coacts with an element stationary relative to the dispenser container to cause forced discharge (as the movable nozzle constitutes a part of a pump or pulsator), (3) the nozzle is movable relative to the dispenser container and is interconnected in any way with a discharge assistant so that motion of the nozzle is necessary for or occurs because of motion of the discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for this subject matter where there is claimed both (1) a follower and (2) a casing enclosed impeller.
526 and see the notes thereto for movable nozzles not claimed in combination with discharge assistants.

With material supply container and discharge assistant casing:
This subclass is indented under subclass 320. Subject matter wherein the movable nozzle and interconnected discharge assistant are associated with a casing, and there is a container supplying a material to such casing.

SEE OR SEARCH THIS CLASS, SUBCLASS:
252 for plural discharge assistants.

With precompression:
This subclass is indented under subclass 321.1. Subject matter including means for preventing a flow of material from the discharge assistant until a predetermined discharge pressure is reached.

With antileak or antisiphon means:
This subclass is indented under subclass 321.1. Subject matter including means to prevent leakage of the material from a discharge passage or means to prevent siphoning following the operation of the discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for a volume or rate of flow metering with a by-pass, gas separation or anti-siphon means.
73 for a volume or rate of flow metering with means for relieving or maintaining hose pressure.
108 for means for catching or disposing of leakage, drip, or waste, including those which also return the same to the supply.
318 for means for by-passing a discharge assistant or for returning material from the discharge side thereof to the supply.
424 for a miscellaneous dispenser having means to return material to the supply.

SEE OR SEARCH CLASS:
137, Fluid Handling, 215 for a back flow or siphon
preventing in fluid handling system.
221, Article Dispensing, subclass 245 for an article dispensing device having a return stroke inhibiting means (i.e., full stroke-mechanism).
251, Valves and Valve Actuation, subclass 34 for a reverse flow prevention in fluid pressure type servo-motor valve actuator.

With plural-point inlet to casing:
This subclass is indented under subclass 321.1. Subject matter wherein there is a structure provided for inlet of the material from the supply container to discharge assistant casing from at least two spaced points.
(1) Note. This may be by providing plural inlet pipes or a single inlet pipe which may move from place to place within the dispenser due to flexibility or joints or any other means or which may have plural openings.

SEE OR SEARCH THIS CLASS, SUBCLASS:
381 for a movable discharge assistant casing which does not position the inlets at plural points.

Inlet trap (e.g., sump):
This subclass is indented under subclass 321.1. Subject matter wherein an inlet to the discharge assistant casing extends into a supplemental chamber communicating with the supply container.
(1) Note. The trap chamber may be formed by walls within the supply container, or by a depression in the bottom wall of the container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
328 for a material discharge guide on the container side of the outlet.

Aligned discharge assistant, actuator, container and nozzle:
This subclass is indented under subclass 321.1. Subject matter wherein the discharge assistant, an actuating means on the discharge assistant, the container and the nozzle are arranged substantially coaxially.

SEE OR SEARCH THIS CLASS, SUBCLASS:
259 and 260+, for a similar arrangement involving more than one discharge assistant.
510 for a container having an oulet element in one wall and the actuator therefor passing through the container interior and another wall.

Container-mounted pump:
This subclass is indented under subclass 321.1. Subject matter wherein the encased discharge assistant is a pump which is mounted on the supply container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
382 for a pump mounted on a supply container and having an internally extending pipe constituting an extension of the pump or the pulsator inlet.

With relatively movable actuator:
This subclass is indented under subclass 321.7. Subject matter including an actuator for the pump which is mounted for a relative movement with respect to a nozzle.

SEE OR SEARCH CLASS:
221, Article Dispensing, 272 for an article dispenser having discharge assisting means with a relatively movable actuator.
251, Valves and Valve Actuation, subclasses for valve operating mechanisms (e.g., mechanical movement actuators for valves, 213 ; lever actuated, subclasses 231+; geared, subclasses 248+; cam actuated, subclasses 251+; toggle actuated, subclasses 280; push or pull button, subclasses 319+).

Pump casing within supply container:
This subclass is indented under subclass 321.7. Subject matter wherein a casing or cylinder of the pump is located within the supply container.

This subclass is indented under subclass 251. Dispensers in which an actuator for a movable dispenser part projects through the dispenser outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for cleaning elements extending through the dispenser outlet.
402.1 particularly subclass 402.25 for dispensers with a fluid pressure discharge assistant which have a valve closing an opening for material which is opened by motion of an actuator extending through the opening, such opening not being the dispenser outlet discharging to atmosphere.
501 for such actuators for dispensers not having discharge assistants.

This subclass is indented under subclass 251. Dispensers claiming a handle or handgrip connected to the supply container and by means of which the dispenser may be handled.
(1) Note. The handle must be secured to the dispensing container for handling the container. The handles which are for operation of the discharge assistant means and/or its controls but not for handling the container are not included except when in combination with a container handle.

SEE OR SEARCH THIS CLASS, SUBCLASS:
79 for devices of this type simulating a firearm.
210 for this subject matter associated with resilient wall dispensers.
384 for pump or pulsator handles held against motion in a position to serve as handles for the supply containers.
402 for handles for operating fluid pressure generating pumps and pulsators and capable of use as container handles when held against motion.
441 for this subject matter associated with trap chambers having cutoffs, there being no discharge assistant.
465.1 for miscellaneous dispensers having this subject matter.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 185 for body supported article dispensing devices including specific handle arrangements.

This subclass is indented under subclass 323. Dispensers in which the handle is associated with a combination which includes a material supply container which delivers material to a casing, the discharge assistant being associated with the casing.

This subclass is indented under subclass 251. Dispensers in which the container for the material to be dispensed is so related to the rest of the dispenser organization that it is separable therefrom (leaving the remaining portions in substantially normal operative relation) for either refilling or to be replaced by a full container.
(1) Note. A frame (carrying the nongravity discharge assistant or movable trap chamber) and comprising more than a mere closure for the separable container, into or from which the material container may be inserted or removed is included.
(2) Note. A cartridge is an auxiliary container to be inserted within another container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
95 where the inserted cartridge or container, is of the collapsible wall type designed to expel material when the wall is collapsed.
131 for dispensers with spaced jackets not for the sole
purpose of receiving a separable supply container or cartridge.
182 and 183, for dispensers having enclosures or jackets not for the sole purpose of receiving a separable supply container or cartridge.

SEE OR SEARCH CLASS:
221, Article Dispensing, 46 for article dispensers of the napkin holder type having removable supply magazines associated therewith, subclasses 197+ for article dispensers having supply cartridges or containers removable from enclosing casings, and subclass 287 for article dispensers in which the container enclosing the articles and comprising a source of supply is removable from the remainder of the dispensing device.

This subclass is indented under subclass 325. Dispensers in which a follower is included in the dispenser organization with which the separable supply container or cartridge is associated, which follower operates to expel the contents of the container or cartridge.

SEE OR SEARCH THIS CLASS, SUBCLASS:
386 for containers or cartridges having followers, the features for this subclass (326) not being claimed.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 198 for article dispensers having removable supply cartridges or containers with followers operating therein.
401, Coating Implements With Material Supply, subclass 135, wherein the implement includes an insertable, frangible-wall reservoir having a piston movable to force material into the reservoir or from the reservoir to the applying tool; and see the search notes to subclass 386 of this class (222).

This subclass is indented under subclass 326. Dispensers in which the follower forms part of the separable supply container or cartridge assembly.

This subclass is indented under subclass 251. Dispensers having means in addition to the necessary wall structure of the supply container on the container or supply side of the discharge assistant to guide material thereto for discharge.

SEE OR SEARCH THIS CLASS, SUBCLASS:
266 for covers for units of a set of discharge assistants.
270 for interior guide structure related to discharge assistants arranged in sets.
279 for guides constituting removable or shiftable baffles or covers for discharge assistants not in use.
547 for interior guide structure related only to dispensers having outlets with flow controllers or closures.
564 for miscellaneous interior guides.

This subclass is indented under subclass 251. Dispensers in which the material guides are removable or movable shaped casings for guiding material to rotary discharge assistants located below the main receptacle body.

SEE OR SEARCH THIS CLASS, SUBCLASS:
269 for supply containers having a lower wall composed of separable sections, each relating to or mounting one of a set of discharge assistants.

This subclass is indented under subclass 251. Dispensers having more than one outlet for material at least one being on the discharge side of a single discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
249 for floating pistons having plural or alternate discharge.
478 for miscellaneous dispensers having plural outlets, there being no discharge assistant claimed.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 262 for fluid handling means comprising flow dividing compartments; subclasses 597 and 861+ for distribution systems having plural outlets.
221, Article Dispensing, subclass 252 for article dispensing devices having discharge assisting means and plural outlets for the articles dispensed.

This subclass is indented under subclass 330. Dispensers having at least two of the plural outlets of different character.
(1) Note. For example, there may be a gravity discharge outlet in addition to the outlet for the discharge assistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:
318 for plural outlets, one of which is a by-pass or return to supply passage.

This subclass is indented under subclass 251. Dispensers in which there is a vent passage for a movable trap chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:
478 for miscellaneous dispensers with vent passages, and see the notes thereto for other dispensers with vent passages.

This subclass is indented under subclass 251. Dispensers having a motor to operate same.

SEE OR SEARCH THIS CLASS, SUBCLASS:
14 where there is means to stop feed due to operation of a selectively preset volume or rate of flow responsive mechanism.
23 for recorder, register, indicator, signal, or exhibitor combinations.
52 especially subclass 63 for dispensers in which the motor is automatically controlled.
70 for timing mechanism combinations.
74 for motors having an interlock or interconnection with a hose or other discharge guide.
76 for motors with nonautomatic electrical controls
178 for ambulant support-motor combinations.
252 where one or more of plural discharge assistants are motor operated.
504 for dispensers outlet element-motor combinations.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 258 for article dispensers having motor operated discharge assisting means.
291, Track Sanders, subclass 20 for electric motor operated sanders.

This subclass is indented under subclass 333. Dispensers in which the motor is operated by fluid under pressure.

SEE OR SEARCH CLASS:
184, Lubrication, subclass 29 for fluid pressure operated pumps for lubricators.
291, Track Sanders, subclass 24 for fluid motor operated sanders.

This subclass is indented under subclass 251. Dispensers in
which there is a discharge assistant which is actuated by the pressure of the material being dispensed, or by suction on such material, the pressure of suction creating means not being claimed.
(1) Note. The discharge assistant may be moved by the pressure of material and also require additional actuation (as manually) to cause discharge assisting function.
(2) Note. The pressure on the material may fill a trap chamber, and thereafter operate on a piston to cause the piston to move and force the material from the trap chamber.
(3) Note. Valve or closure elements on the interior of the receptacle caused to move toward closing position due to pressure on the contents and thus push material through the outlet are included.

SEE OR SEARCH THIS CLASS, SUBCLASS:
92 for patents which claim characteristics of the collapsible wall or means for collapsing the same.
249 for floating piston devices operated by material pressure.
252 where a second means for creating pressure on the contents is claimed.
322 where means for operating the discharge assistant extends through the dispensing outlet.
491 where the valve or closure does not push material through the outlet due to motion caused by pressure of the material.

This subclass is indented under subclass 251. Dispensers in which there are biasing means of spring or other form for moving to a desired position, either (1) the discharge assistant or (2) its enclosing casing.
(1) Note. Under section (1) of the above definition, the biasing means must act to move the discharge assistant to operative (discharging) or nonoperative (nondischarging) position. Biasing means operating on movable parts but not having such function are not included.
(2) Note. For section (2) of the above definition, see the definition of subclass 337.

SEE OR SEARCH THIS CLASS, SUBCLASS:
337 see note (2) above.
394 for biasing means for fluid pressure generating pumps and pulsators.
407 for biased deformable discharge assistant elements, the biasing means not operating as in note (1) above.
511 for biasing means for dispenser outlet elements, such as movable nozzles, valves, closures, or other flow controllers.
581 and 582, for a dispensing inkwell including a dip well which is a movable trap chamber biased toward resetting position; and see the search notes to these subclasses.

SEE OR SEARCH CLASS:
184, Lubrication, 45.1 and 46, for lubricators with spring and weight operated followers.

This subclass is indented under subclass 336. Dispensers in which the biasing means has the sole function of increasing the resistance to material flow through a joint (contacting surfaces) between two relatively movable parts.
(1) Note. Where the biasing means has either the sole function of moving the movable part to operative (discharging) or nonoperative (nondischarging) position, or has such function in addition to the joint sealing function, see subclass 336 or other appropriate indented subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:
512 for mere outlet structures with joint sealing biasing means.

This subclass is indented under subclass 337. Dispensers in which one or more of the walls for enclosing the discharge assistant is biased by spring or other means to engage the discharge assistant closely.

SEE OR SEARCH THIS CLASS, SUBCLASS:
345 for a mere lip or attachment for leveling or striking off the charge in a trap chamber to prevent the passage of surplus material from the supply container. These may be biased, but do not enclose the trap chamber.

This subclass is indented under subclass 336. Dispensers in which the device biased has a motion of oscillation about its axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:
516 for biased rotary outlet structures.
517 for oscillating outlet elements.

SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, subclass 257.072 for an inkwell which includes penpoint-actuated diaphragm means for forcing ink into a dip cup which is not a trap chamber because it is incapable of retaining the ink after cessation of the applied force.

This subclass is indented under subclass 336. Dispensers in which the device is either a piston or a follower type impeller having a reciprocating motion and operating in either the supply receptacle or in a casing which receives material from the supply container, so that motion of the piston or follower applies pressure to the material to cause discharge.

SEE OR SEARCH THIS CLASS, SUBCLASS:
336 for reciprocating piston form conveyors or movable trap chambers, including movable trap chambers in the form of a stem having plural concentric enlargements thereon.
372 for supply receptacles delivering to casings having pistons or followers therein, no biasing means for causing piston or follower motion being claimed.
386 for receptacles having followers therein, there being no biasing means for causing follower motion being claimed.
449 for trap chamber cutoffs with biasing means.
518 for biased, reciprocable outlet elements such as valves, nozzles, closures, etc.
582 for a dispensing inkwell including a discharge assistant which is biased toward a resetting position following an actuating stroke, usually in the direction of the supply.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 276 for article dispensers having spring biased reciprocating discharge assisting means, and subclass 271 for similar devices in which the reciprocating discharge assistant is spring biased to a discharging position.

This subclass is indented under subclass 340. Dispensers in which at least one biasing means is within a chamber or passage containing material to be dispensed.

This subclass is indented under subclass 251. Dispensers having means for cleaning, scraping or wiping the discharge assistant or means carried by the discharge assistant for cleaning, scraping or wiping the adjacent parts of its casing or the discharge path.

SEE OR SEARCH THIS CLASS, SUBCLASS:
148 for cleaning means operating independently of the discharge assistant or for cleaning the supply container, material discharge guide or receiver.
216 for agitators and/or ejectors for removing material from conveyors having trap chambers or grooves or from movable trap chambers of any kind.
345 for conveyor type or movable trap chamber striking or clearing means.
636 for fluid flow discharge for movable conveyor type trap chambers.

SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, 494 for a conveyor having
installed as part of its structure a means for cleaning a component of the conveyor.

This subclass is indented under subclass 251. Dispensers having projecting parts of the discharge assistant following a path variable with respect to other parts, to increase and decrease the extent of projection. The purpose is to facilitate picking up and discharging material, not to vary the discharge volume.

SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for discharge assistants having discharge volume varying means and especially subclass 291 for devices similar to those having volume varying function.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 270 for article dispensers having reciprocating discharge assistants having retractable pusher elements.
418, Rotary Expansible Chamber Devices, 259 for rotary expansible chamber devices of the positively actuated vane type and subclass 270, for similar devices in which the vane is not actuated or biased.

This subclass is indented under subclass 251. Dispensers having a chamber so constructed and related to the supply as to receive material therefrom, which chamber is movable mounted relative to the supply. The material in the trap chamber is isolated from the supply either by the relative movement of the supply and trap chambers or by special means as flow controllers, closures, etc.
(1) Note. A conveyor type trap chamber functions to convey (translate) the material from the inlet from the supply to a spaced outlet while some are movable chambers which, when moved to one position, permit material flow thereinto from the supply and in a second position cut off the supply and permit discharge. The isolation of material must be accompanied by the motion of the trap chamber relative to the supply, and the trapped material must be either discharged or made accessible for use. The isolation may be accomplished by the travel of the trap chamber beyond a wall of a casing
or supply container, by removal beyond the point where the angle of repose of the material in the supply is established, preventing further flow into the trap chamber, or by raising the chamber above the level of the material in the supply container.
(2) Note. Many conveyor type or movable trap chambers are provided for in preceding subclasses in other combinations, some of these being specially noted below.
(3) Note. Movable trap chamber structures (designated as segregating chambers) may be found in Class 221, Article Dispensing. In many instances the structure and mode of operation is entirely similar. A statement of the line between the classes, outlining the specific disposition of the art, is included in Lines With Other Classes and Within This Class, in the Class definition of Class 221.

SEE OR SEARCH THIS CLASS, SUBCLASS:
135 for conveyor type of movable trap chambers where there are plural sources, compartments, receptacles and/or with spaced jacket, not serially arranged in the dispensing path.
160 where the supply receptacle is movably mounted.
216 where an agitator receptacle or ejector operates to remove material from the trap chambers.
226 where there is a serially precedent agitator.
252 where there are plural conveyor type or movable trap chambers or combinations with other discharge assistants.
282 where there is discharge volume varying means.
332 where there is a vent passage.
336 where there is a biasing means.
425 which have nonmovable trap chambers (i.e., trap chambers which do not require motion to trap material, though they may be movable for mere adjustment purposes) and which have valves or other cut-offs to control inflow of material from a source and/or discharge of material. Chambers having movable wall parts which perform a definite material conveying (translating) motion are in subclass 344 and indented subclasses, as are chambers which move and substantially completely surround the trapped material, as distinguished from chambers which are stationary and merely have valves or other cut-off elements which move to permit entry and/or discharge of material from the trap chamber.

SEE OR SEARCH CLASS:
73, Measuring and Testing, subclasses 217-226, for tank type volume or rate of flow meters.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 110 and 358 for devices including scoop, drawer, or tube type devices which must be removed from the supply container for discharge of material therefrom.
184, Lubrication, 61 for conveyor type lubricators.
221, Article Dispensing, 263 for article dispensing devices having movable segregating chamber structures. See (3) Note, above.

This subclass is indented under subclass 344. Dispensers in which either (1) the supply container wall adjacent the trap inlet is modified to level or strike off surplus material in the trap chamber as it moves away from the bulk of material, or (2) in which an attachment is provided for this purpose.

SEE OR SEARCH THIS CLASS, SUBCLASS:
80 for cutter combinations, and see the Note referring to this subclass (345) for the line.
108 for drip, leakage, or waste catching or disposal including return of same to the supply.
148 for cleaning means for dispenser parts other than discharge assistants see Note 1 stating the line.
216 for agitators or ejectors for removing material from movable trap chambers.
342 for scrapers or wipers for or carried by a discharge assistant.

SEE OR SEARCH CLASS:
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, 218 for a molding machine for nonmetals with means for striking off excess stock material from a mold inlet.

This subclass is indented under subclass 345. Dispensers having striking or clearing means located within the supply container but removed from the point where the material
separated by the conveyor trap leaves the bulk of the material.

This subclass is indented under subclass 345. Dispensers having unitary or interconnected striking or clearing means operable both at the point where the movable trap chamber leaves the supply chamber and where it re-enters.
(1) Note. Some of these are for use with plural oppositely acting trap chambers which are not claimed.

This subclass is indented under subclass 345. Dispensers having the striking or clearing means made up of relatively movable sections each cooperating with a portion of the trap chamber pathway.

This subclass is indented under subclass 345. Dispensers having the striking or clearing means either movably mounted or formed of yieldable material to be movable from its normal position.
(1) Note. This is usually to allow the passage of pieces of material too large to be received in the trap chambers or which for other reasons are caught between the striking or clearing means and the moving trap chamber element.

This subclass is indented under subclass 349. Dispensers having pivoted striking or clearing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:
223 for this subject matter combined with a pivoted ejector to remove material from movable trap chambers.

This subclass is indented under subclass 349. Dispensers having nonpivoted striking or clearing means movable in its own plane toward and from the trap chamber element.

SEE OR SEARCH THIS CLASS, SUBCLASS:
314 for discharge controllers adjustable to vary discharge volume mounted for similar motion.

This subclass is indented under subclass 349. Dispensers having a striking or clearing means comprising a brushlike structure.

SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, for brushes used in other combinations and for brush structure, per se.

This subclass is indented under subclass 344. Dispensers in which the flow from the main receptacle to the movable trapping chamber is (1) of the barometric control type, or (2) is of the type where solid material in the trapping chamber builds up to its angle of repose and stops flow from the main chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:
437 for nonmovable barometric or angle of repose trap chambers with means to adjust the cut-off point to vary the volume trapped.
457 for miscellaneous combinations between a supply and a barometric or angle of repose trap chamber, and see the notes for related art.
479 for containers having plural, coterminous openings (usually tubular spouts), many of which are disclosed as operating on a barometric principle when used to deliver to
an unclaimed receptacle.

This subclass is indented under subclass 344. Devices in which there is a cut-off for either or both the inlet to the trap chamber or the outlet from the trap chamber, which is carried by the trap chamber element to move therewith and also so mounted and operated as to move relative to the trap chamber element.

SEE OR SEARCH THIS CLASS, SUBCLASS:
355 for trap chamber operated cut-offs, not carried by the trap chamber.
425 for cut-offs associated with trap chambers other than the movable type.

This subclass is indented under subclass 344. Devices in which there is a cut-off for a material passage which is interconnected with the trap chamber or its operating means to be caused to assume its open or closed position upon operation of the trap chamber.
(1) Note. The interconnection may be merely that some element carried by the trap chamber engages the cut-off to operate it due to trap chamber motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:
354 for trap chamber carried cut-offs.

This subclass is indented under subclass 344. Dispensers in which the trap chamber, other than the rotary or endless belt types, is dipped below the surface of the contents of the chamber for filling and is raised to a position with its inlet above the surface before discharge.
(1) Note. See Lines With Other Classes and Within This Class, Dipping and Sampling, in the main class definition for
notes on related dipping and sampling art in other classes.

SEE OR SEARCH THIS CLASS, SUBCLASS:
367 for similarly operating rotors.
371 for similarly operating endless belt carried chambers.

SEE OR SEARCH CLASS:
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 110 and 358 for devices including those of chamber form for obtaining material from a supply container and completely separable therefrom for discharge.

This subclass is indented under subclass 356. Dispensers in which the trap chamber has motion about a plurality of axes or has other combined motions.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 262 for article dispensers having discharge assistants (including trap chamber structures) having compound motions.

This subclass is indented under subclass 356. Dispensers in which the trap chamber moves about a single axis eccentric to the center or axis of such chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:
367 for dipping rotors.

This subclass is indented under subclass 344. Dispensers in which the actuating means is so connected to the conveyor type or movable trap chamber as to move relative thereto when operated.

SEE OR SEARCH THIS CLASS, SUBCLASS:
177 for dispensers having ambulant supporting means and means interconnected with a ground engaging wheel to operate a dispensing means.
179 for dispensers having pedal operated dispensing means.
333 and see the notes thereto for motor operated movable dispensing parts.
336 for combinations involving biasing means.
505 for movable nozzles, valves, closures, etc., with relatively movable actuating means.

This subclass is indented under subclass 359. Dispensers in which the relatively movable actuating means imparts step-by-step rotary motion to the conveyor type or movable trap chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:
367 for other rotary conveyor type trap chambers and see the notes thereto.

This subclass is indented under subclass 344. Dispensers in which the movable trap chamber or trap forming elements are reciprocated between supply and discharge positions to control the material flow and transport the trapped material relatively to the supply container.
(1) Note. In the case of two rigidly connected reciprocating trap-forming members the passage from the supply container to the dispenser outlet must cooperate with the members to prevent continuous flow in the normal and intended operation of the dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
137 for combinations involving plural sources, compartments or receptacles.
164 for tilting supply containers.
216 for combinations with an agitator or ejector to remove
material from the trap chamber.
233 and 243+, for combinations with a precedent, serially arranged agitator.
275 for plural devices arranged in sets.
282 for combinations with discharge volume varying means.
336 for combinations with biasing means.
356 for nonreciprocating dipping trap chamber type.
409 for reciprocating discharge assistants not of trap chamber type.
559 and see the notes thereto for reciprocable flow controllers or closures.
583 for a dispensing inkwell including a movable trap chamber which is a dip well immersible in the supply for filling and elevatable to a position accessible to a penpoint.

This subclass is indented under subclass 361. Dispensers in which the trap chamber element is pivoted to move about an axis.
(1) Note. For the most part, the axis is eccentric to the center or axis of the trap chamber or plural trap chamber assembly, but may be coaxial therewith where there are means restricting the same to oscillation.

SEE OR SEARCH THIS CLASS, SUBCLASS:
367 for trap chambers which are pivoted to rotate about their own axis and for plural trap chambers radially disposed about a common axis, where the trap chamber is capable of continuous rotation in the same direction.

This subclass is indented under subclass 362. Dispensers in which the pivoted trap chamber has a single opening which serves both as an inlet and outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:
366 for other single inlet-outlet reciprocating trap chambers.
368 for rotary trap chambers with single inlet-outlet.
444 and see the notes thereto for other trap chambers having single inflow-outflow passages.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 266 for article dispensers having movable trap chamber structures of the single inlet-outlet type.

This subclass is indented under subclass 363. Dispensers having the pivot of the movable trap lying in the trap chamber rim.

SEE OR SEARCH THIS CLASS, SUBCLASS:
531 for related movable discharging guide structures not having material trapping features.

This subclass is indented under subclass 361. Dispensers having the trap forming members consisting of a stem connecting the central portions of bodies capable of filling the chamber to close off the material holding part.

SEE OR SEARCH THIS CLASS, SUBCLASS:
453 for stems having cut-off enlargements thereon which do not function to convey (shift) the material.
476 for spaced alternately seated cut-offs for a single outlet.

This subclass is indented under subclass 361. Dispensers in which the trap chamber has a single passage for both filling
and discharging. The assembly may be inverted for discharge or the contents of the trap chamber are dipped out.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 266 for article dispensers having movable trap chamber structure of the single inlet-outlet type.

This subclass is indented under subclass 344. Dispensers in which the movable trap chamber element is of the conveyor type and has a motion of rotation about its own axis or plural trap chambers are assembled to rotate about a common axis.
(1) Note. The trap chamber element has a generally circular periphery and may have one or more pockets, the axis being the center of the unit as a whole.

SEE OR SEARCH THIS CLASS, SUBCLASS:
138 for combinations involving plural sources, compartments, or receptacles.
167 for rotatable supply receptacles.
216 for combinations with an agitator or ejector to remove material from the supply container.
233 and 236+, for combinations with a precedent, serially arranged agitator.
264 and 271+, for plural such devices.
282 for combinations with discharge volume varying means, particularly 293+.
336 for combinations with biasing means.
356 for dipping trap chamber type which are nonrotary.
360 for rotary devices having a relatively movable actuator for imparting intermittent motion.
362 where means are provided to require oscillation.
410 for rotary discharge assistants not of the trap chamber type.
452 for rigidly connected rotary valves for controlling the inlet and outlet of a trap chamber, but not forming a
complete enclosure for the trapped material, so as to constitute a conveyor type trap chamber.
548 and see the notes thereto for rotary closures.

SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, 48, for rotary carbid feeders.
73, Measuring and Testing, 217 for volume or rate of flow meters of the rotary tank or bucket type.
184, Lubrication, subclass 63, for rotary bucket conveyors.
198, Conveyors: Power-Driven, appropriate subclasses for rotary conveyors, including 441, 450, 469.1+, 608, 611+, and 803.16.
406, Conveyors: Fluid Current, 63 for those having feeders having pockets which successively register with the conveyor.
417, Pumps, appropriate subclasses for rotary pumps.
418, Rotary Expansible Chamber Devices, for rotary expansible chamber type pumps.

This subclass is indented under subclass 367. Dispensers in which the trap chamber or each trap chamber of the group has a single opening which serves both for inlet from the supply and for discharge.

SEE OR SEARCH THIS CLASS, SUBCLASS:
363 and 366, for oscillating and reciprocating trap chambers with single inlet-outlet.
444 and see the notes thereto for other trap chambers having single inflow-outflow passages.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 266 for article dispensers having movable trap chamber structure of the single inlet-outlet type.

This subclass is indented under subclass 368. Dispensers having the chamber or chambers arranged so that the outlet-inlet is positioned radially, forming a scoop or bucket.

This subclass is indented under subclass 367. Dispensers in which the trap chamber has both an inlet and an outlet both of which are axial, i.e., material passes through the trap chambers along a path parallel to the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:
302 for such trap chambers comprising axially adjustable rotor parts each having axial material trap sections.

SEE OR SEARCH CLASS:
221, Article Dispensing, subclass 265 for article dispensing devices having rotary trap chamber structures of the axial inlet and outlet type.

This subclass is indented under subclass 344. Dispensers having trap chambers carried by or formed in or by an endless belt or belt elements.

SEE OR SEARCH THIS CLASS, SUBCLASS:
415 for endless belt dispensers without trap chambers.

SEE OR SEARCH CLASS:
48, Gas: Heating and Illuminating, subclass 49, for endless belt carbid feeders.
184, Lubrication, subclass 62.
198, Conveyors: Power-Driven, for endless belt conveyors.

This subclass is indented under subclass 251. Dispensers in which a supply container delivers to a casing which casing houses a discharge assistant (such as an impeller, piston, follower, etc.) which assists in discharge of material from the casing.
(1) Note. This subject matter occurs in many preceding subclasses in special embodiments or in other combinations.
(2) Note. In the subclasses following this group are patents for supply containers having discharge assistants (not associated with a casing) operating directly on the material in the supply container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
95 where the supply container is of the collapsible wall type.
129 where there are plural sources, compartments, or receptacles and/or a spaced jacket, where the additional compartment or receptacle is other than a casing which houses the discharge assistant and receives material from the source.
205 for combinations in which a supply container has a discharge assistant associated therewith for delivery of material to a trap chamber having no discharge assistant.
252 and see the notes thereto for plural discharge assistants including those in which a discharge assistant is associated with the supply container to deliver material to the casing which houses a second discharge assistant.
320 where a movable nozzle is connected to the discharge assistant in the casing.
324 where a handle for the combination is claimed.
335 where a source of supply under pressure (the pressure creating means not being claimed) operates a discharge assistant.
336 where the discharge assistant is biased to move by spring or other means.

SEE OR SEARCH CLASS:
92, Expansible Chamber Devices, appropriate subclasses for an expansible chamber device comprising a piston and cylinder. See Lines With Other Classes and Within This Class, in the class definition of Class 92, under "SEARCH CLASS 222", for a statement of the line between Class 92 and Class 222.
137, Fluid Handling, 565.01 for distribution systems including a pump.
169, Fire Extinguishers, subclass 33 for portable fire extinguishers with pumps, 72+ for gas pressure vessels having discharge assistance.
184, Lubrication, 64 for lubricators using pumps.
239, Fluid Sprinkling, Spraying, and Diffusing, 88, 124+, 157, 319, and 329+ for combinations of pumps with spray apparatus or spray nozzles.
366, Agitating, particularly subclass 196 for discharge effected by a stirrer, and subclasses 262+ for a pump type stirrer.
417, Pumps, for pump structure.
418, Rotary Expansible Chamber Devices, for rotary expansible chamber pumps.
604, Surgery, 131 for pressure devices; subclasses 151+ for pumps and subclasses 218+ for pistons.

This subclass is indented under subclass 372. Dispensers in which the casing which receives material from the supply container by gravity is fed fluid under pressure to cause discharge therefrom.

SEE OR SEARCH THIS CLASS, SUBCLASS:
394 and see the notes thereto for related art.
630 for fluid flow discharge.

This subclass is indented under subclass 372. Dispensers having (1) means to prevent leakage from the discharge passage, (2) means to prevent siphoning following operation of the discharge assistant and (3) means to insure a full stroke of the pump mechanism.
(1) Note. Pressure relief devices, as valves or expansion chambers, are included in the Class Definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for volume or rate of flow metering with by-pass, gas separation and/or anti-siphon means.
73 for volume or rate of flow metering with means for relieving or maintaining hose pressure.
108 for means for catching or disposing of leakage, drip, or waste, including those which also return the same to the supply.
318 for means for by-passing a discharge assistant and/or for returning material from the discharge side thereof to the supply.
424 for miscellaneous dispensers having means to return material to the supply.

SEE OR SEARCH CLASS:
137, Fluid Handling, 215 for back flow or siphon preventing in fluid handling systems.
221, Article Dispensing, subclass 245 for article dispensing devices having return stroke inhibiting means (full stroke-mechanism).
251, Valves and Valve Actuation, subclass 34 for reverse flow prevention in fluid pressure type servo-motor valve actuators.

This subclass is indented under subclass 372. Dispensers in which there is structure providing for the inlet of material from the supply container to the discharge assistant casing from at least two spaced points.
(1) Note. This may be by providing plural inlet pipes or a single inlet pipe which may move from place to place within the dispenser due to flexibility or joints or any other means or which may have plural openings.
(2) Note. Inlets connected with pump pistons or movable pump cylinders to move therewith are here.

SEE OR SEARCH THIS CLASS, SUBCLASS:
381 for movable discharge assistant casings which do not position the inlets at plural points.

This subclass is indented under subclass 372. Dispensers in which the inlet to the discharge assistant casing extends into a supplemental or trap chamber communicating with the supply chamber.
(1) Note. The trap chamber may be formed by baffles or walls within the supply chamber, or by a depression in the bottom wall (including conical bottom walls).
(2) Note. These are for two general purposes, i.e., (1) to be able to substantially completely exhaust the supply, and (2) to be able to trap a small amount about the force feeder inlet so as to be able to dispense same even though the main body of the supply is not about the inlet due to tipping of the dispenser.

SEE OR SEARCH THIS CLASS, SUBCLASS:
328 for material discharge guides on container side of the outlet.

This subclass is indented under subclass 372. Dispensers in which the discharge assistant, the actuating means therefor, the supply container and the nozzle are arranged substantially coaxially.

SEE OR SEARCH THIS CLASS, SUBCLASS:
259 and 260+, for similar arrangements involving more than one discharge assistant.
321.1 for similar arrangements where a movable nozzle is connected to the discharge assistant.
510 for containers having an outlet element in one wall and the actuator therefor passing through the container interior and another wall.

This subclass is indented under subclass 372. Dispensers in which the dispenser outlet is telescopic and/or the inlet to the discharge assistant casing is telescopic.

SEE OR SEARCH THIS CLASS, SUBCLASS:
398 for fluid pressure type dispensers having telescopic supply containers or outlets.
523 for miscellaneous telescopic outlets.

This subclass is indented under subclass 372. Dispensers in which the dispenser outlet has a valve therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:
375 for anti-leak or anti-siphon means.
387 for follower type dispenser with valved outlet.
544 and see the notes thereto for dispensers with valved outlets.

SEE OR SEARCH CLASS:
221, Article Dispensing, 247 for article dispensing devices having ejector means and relatively movable outlet elements associated therewith.

This subclass is indented under subclass 372. Dispensers in which the discharge assistant casing is movable.

SEE OR SEARCH THIS CLASS, SUBCLASS:
376 for movable casings which position the inlet at plural points.

This subclass is indented under subclass 372. Dispensers in which there is a pipe communicating with and constituting an extension of the inlet to the discharge assistant casing and extending internally of the receptacle. For the most part these pipes extend to adjacent the receptacle bottom.

SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for this structure associated with resilient wall dispensers.
376 where there are plural such pipes, or where a single such pipe is movable for plural point inlet.
377 for such pipes associated with an inlet trap.
464.1 for miscellaneous dispensers having such outlet pipes.

Container-mounted pump:
This subclass is indented under subclass 372. Subject matter wherein the encased discharge assistant is a pump, which is mounted on the supply container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
382 for a pump or pulsator mounted on a supply container and having an internally extending pipe constituting an extension of the pump or the pulsator inlet.

Rotary pump:
This subclass is indented under subclass 383.1. Subject matter wherein a working member of the pump undergoes a rotary motion.

SEE OR SEARCH CLASS:
418, Rotary Expansible Chamber Devices, for rotary pump.

Movable material discharge guide:
This subclass is indented under subclass 383.1. Subject matter in wherein there is associated with the pump a material discharge guide which is so constructed as to be movable relative to the pump for the purposes other than mere attachment or detachment.

SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for a hose or other movable discharge guide interlocks and interconnection.
83 for a nozzle or other material guide that has a cutter or punch associated therewith and is mounted for motion.
160 where the dispensing container is mounted for motion.
257 for combination of a follower and a casing enclosed impeller, at least one of them being interconnected with a movable nozzle.
320 for a movable nozzle interconnected with a single discharge assistant.
461 for a funnel type outlet movably interconnected with a container.
507 for an annular outlet surrounding discharge guide which is movable and constitute an actuator for a second movable outlet element.
522 for an axially slidable tube, sleeve, or apertured cap.
526 for a movable material discharge guide.
567 for a nozzle, spout and pouring device having a separable means for mere attachment and detachment purposes.

SEE OR SEARCH CLASS:
137, Fluid Handling, 615 for an articulated or swinging flow conduit in a distribution system.
251, Valves and Valve Actuation, 149, 150, 341+, and 349+ for other moving flow pipe section or spout.
291, Track Sanders, subclass 31 for a flexible or movable pipe operable to cutoff the sand feed.

Dispensers under subclasses 383.1+ in which means is provided for holding or preventing motion of the pump or pulsator piston.

SEE OR SEARCH THIS CLASS, SUBCLASS:
309 for similar means for adjusting discharge volume.
402 for similar means for holding the piston of a fluid pressure generating pump or pulsator.

Dispensers under subclasses 383.1+ in which the casing or cylinder of the pump or pulsator is within the supply container.

This subclass is indented under subclass 251. Dispensers in which there is an element acting as a supply container wall which follows the material as it is dispensed.
(1) Note. The follower may be caused to move by atmospheric pressure only, or there may be means associated therewith to cause motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for collapsible wall dispensers.
205 where the material ejected from the supply container by the follower is delivered to a trap chamber having no discharge assistant.
206 for resilient wall dispensers.
252 for combinations with other discharge assistants.
320 for followers connected to movable nozzles.
323 for follower type dispensers having handles for handling the organization.
326 for insertable cartridge or removable container combinations.
333 for motor for biased followers.
336 for baised Followers.
372 for casings having followers, there being a supply container to deliver to the casing.

SEE OR SEARCH CLASS:
92, Expansible Chamber Devices, appropriate subclasses for an expansible chamber device comprising a piston and cylinder, and particularly 172 for a piston, per se, even though disclosed as a follower for a dispenser.
100, Presses, 179 for presses not elsewhere classified in which a plunger forces material through a constricted tubular casing.
137, Fluid Handling, subclass 205.5 and 564.5 for fluid handling systems in which there is a follower type discharge assistant for the material in a receptacle to be mixed in a flowing liquid.
169, Fire Extinguishers, subclass 33 for portable fire extinguishers with followers.
184, Lubrication, subclasses indented under "Follower" starting with subclass 37.
220, Receptacles, 578 for a closure-like member which rests on the unused contents of a container.
221, Article Dispensing, 279 for article dispensing devices having follower members included therein, and see also subclasses 56+ for dispensers for flexible articles having followers, and subclasses 226+ for article dispensers of general types having plural discharge assisting means one of which is a follower means.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 23, 313 and 320+ for spaying apparatus in which the fluid is discharged by means of a follower type discharge assistant.
401, Coating Implements With Material Supply, 171, wherein the implement has a cylindrical wall reservoir for the material and a piston movable relative to the wall to force the material from the reservoir.
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, subclass 87 for shaping apparatus of the caulking gun type having a molding material supply and means shaping a deposited material in plural dimensions.
604, Surgery, 218 for pistons or plungers expelling material from reservoirs.

This subclass is indented under subclass 386. Dispensers in which the follower member is of a nonrigid (flexible or resilient) material.
(1) Note. Outer receptacle wall structure is not considered to be a follower and structures wherein a collapsible or resilient outer wall follows the material being dispensed are not included in this subclass. For such devices, see subclasses 92+ of this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:
92 for collapsible wall type containers, and particularly subclasses 95+, for such containers in combination with wall collapsing means therefor. See (1) Note.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 564.5 for nonrigid type followers in fluid handling systems.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 323 for nonrigid followers in spraying systems.

This subclass is indented under subclass 386. Dispensers in which (1) the outlet is valve controlled, (2) the nozzle or other discharge guide is movable relative to the dispenser, and/or (3) means are provided for venting gas from the material side of the follower.

SEE OR SEARCH THIS CLASS, SUBCLASS:
320 for movable nozzles connected to the follower.
380 for valved outlets for casing enclosed discharge assistants which receive material from a supply.
526 and see the notes thereto for movable discharge guides.
544 and see the notes thereto for other dispensers with flow controllers or closures.

This subclass is indented under subclass 386. Dispensers having an opening in the side wall of the container through which the container is refilled.

SEE OR SEARCH THIS CLASS, SUBCLASS:
327 where a cartridge or container with a follower is removable from and insertable into the dispenser organization.

This subclass is indented under subclass 386. Dispensers in which the follower is operated by fluid under pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:
258 261 and 262, for combinations with other discharge assistants.
386.5 for dispensers having nonrigid followers which are operated by fluid under pressure.
394 and see the notes thereto for related art.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 564.5 for a follower type feeder responsive to a main line flow in a fluid handling system.
184, Lubrication, 39.

This subclass is indented under subclass 386. Dispensers in which the follower is operated by a screw mechanism.

SEE OR SEARCH CLASS:
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 324 for screw type followers for the fluid in a spraying system.
401, Coating Implements With Material Supply, 172, wherein the implement has a cylindrical wall reservoir for the material and a piston movable relative to the wall by screw means to force the material into the reservoir or from the reservoir to the applying tool.
604, Surgery, subclass 224.

This subclass is indented under subclass 386. Follower type dispensers in which the operating means for the follower involves an intermittent grip type mechanism.

SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 111, for intermittent grip
mechanisms, per se.
128, Surgery, subclass 236.

This subclass is indented under subclass 386. Follower type dispensers in which there is either or both (1) a follower in the form of a ribbon, (2) a strand for operating a follower of any form.

This subclass is indented under subclass 386. Dispensers in the form of scoops with followers.

SEE OR SEARCH CLASS:
30, Cutlery, 128 for cutlery (including spoons) with ejectors or strippers.
294, Handling: Hand and Hoist-Line Im- plements, 50 for fork and shovel clearers, and subclass 55 for scoops.
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, 282 for a scoop type shaping means (e.g., ice cream dishes, etc.), having means to release a product therefrom.

This subclass is indented under subclass 251. Dispensers in which the material is caused to discharge from the container by fluids under pressure that directly contact the material to be dispensed.

SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for gas or vapor dispensers.
51 for float level indicators.
61 for automatic control of fluid pressure discharge type of dispenser.
64 for material level controls.
95 for fluid pressures used to collapse the walls of receptacles.
152 for inert atmosphere providing means where the gas pressure does not operate to cause material discharge.
195 for gas agitation.
204 for siphons combined with discharge assistants.
206 for resilient wall dispensers.
258 261, 262, and 263, where there is a second discharge assistant.
320 where the gas pump piston rod is also the nozzle.
323 for gas pumps located in the supply container handle.
333 for motors including those operated by pressure fluids.
373 where fluids are applied to the material in a casing to cause discharge, the casing receiving material from a supply by gravity.
386.5 for fluid pressure operated, nonrigid followers.
389 for followers that are fluid pressure operated.
630 for fluid flow discharge.

SEE OR SEARCH CLASS:
60, Power Plants, subclass 39.48, for combustion products power plants with fluid pressure feeding of oxidizer, fuel or water.
137, Fluid Handling, 206 for fluid handling systems having gas displacement means as gas storage over liquid in a pressure system.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, subclass 19 for dispensers having a cutter or punch to open a gas pressure cell to deliver gas under pressure to the dispenser's container to force out the contents material.
169, Fire Extinguishers, subclass 9 and 71+
184, Lubrication, the subclasses indented under "Fluid operated" starting with subclass 49.
221, Article Dispensing, subclass 278 for article dispensing devices having fluid pressure discharge assisting means.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 22, 364+, 372, and 373 for spraying apparatus in which the discharge of one fluid is caused at least in part by the pressure of another fluid in contact therewith.
261, Gas and Liquid Contact Apparatus, for dispensers of the gas pressure discharge assistant type claimed in combination with means to secure an intimate contact between and/or a mixing of the gaseous medium and the fluid to be dispensed.
291, Track Sanders, subclasses 3-16, 18 for sanders operating by fluid pressure or fluid flow.
401, Coating Implements With Material Supply, 184, wherein the implement includes a reservoir for the material and means to vary the pressure of the contained gas (usually air) so as to vary the pressure on the material to force the material into the reservoir or from the reservoir to the applying tool.
406, Conveyors: Fluid Current, subclass 146.
516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting, 1 for continuous gas or vapor phase colloid system (e.g., smoke, fog, aerosol, cloud, mist) or agents for such systems or making or stabilizing such systems or agents, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.
604, Surgery, 140 for material impelled by pressurized charge or gas.

This subclass is indented under subclass 394. Dispensers having a liquid only disclosed as the pressure fluid.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 154 and 172 for diverse liquids in a pressure system.
184, Lubrication, subclasses 49-54.
604, Surgery, subclass 150 for material impelled by water or hydrant pressure.

This subclass is indented under subclass 394. Dispensers having means, such as pressure operated relief valves, to limit the maximum fluid pressure exerted on the contents.

SEE OR SEARCH THIS CLASS, SUBCLASS:
52 if automatic control means (other than mere valves operated directly by pressure) are claimed.
397 for manually operated relief valves.

SEE OR SEARCH CLASS:
137, Fluid Handling, 171 for fluid separating traps or vents in diverse fluid containing pressure systems.

This subclass is indented under subclass 394. Dispensers having means for discharging the pressure fluid from the container.
(1) Note. Such pressure fluid discharging means must be in addition to the pressure fluid introducing means and/or the dispenser outlet and/or their controls, even though such means may be disclosed as relief means.

SEE OR SEARCH THIS CLASS, SUBCLASS:
396 and see the notes thereto.

SEE OR SEARCH CLASS:
137, Fluid Handling, 171 for fluid separating traps or vents in diverse fluid containing pressure systems.

This subclass is indented under subclass 394. Dispensers in which (1) the container is made of at least two telescopically related sections which are moved relative to each other to generate the fluid pressure which acts on the material to cause discharge, and/or (2) there is an outlet pipe having telescopically related sections.

SEE OR SEARCH THIS CLASS, SUBCLASS:
379 for telescopic outlets associated with a supply container having a casing enclosed discharge assistant.
523 for miscellaneous telescopic outlets.

This subclass is indented under subclass 394. Dispensers having a reservoir separate from but communicating with the container whose contents are to be dispensed, which reservoir contains gas under pressure which is fed to the material container to cause dispensing.

SEE OR SEARCH CLASS:
137, Fluid Handling, 209 for gas maintenance or application in gas storage over or displacement of liquid in a diverse fluid containing pressure system.

This subclass is indented under subclass 394. Dispensers in which the operator for the material outlet valve is so related to a fluid pressure generating pump or pulsator that manipulation of the operator causes operation of the pump or pulsator.

This subclass is indented under subclass 394. Dispensers in which the fluid pressure inlet and the material discharge outlet element have a common mounting adapted for manipulation as a unit for positioning on or removal from a container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
399 for similar structures in which a gas reservoir is connected to the fluid pressure inlet.
400.5 for similar structures also including interconnected operating means for the outlet and for a fluid pressure generating pump or pulsator.

SEE OR SEARCH CLASS:
137, Fluid Handling, subclass 212 for unitary mounting for gas inlet and fluid outlet in a diverse fluid containing displacement type pressure system.

This subclass is indented under subclass 400.7. Dispensers in which there is a fluid pressure generating pump or pulsator associated with the fluid pressure inlet.

This subclass is indented under subclass 394. Dispensers in which a fluid pressure generating pump or pulsator is mounted on the container whose contents are to be dispensed, or is adapted to be so mounted.

SEE OR SEARCH THIS CLASS, SUBCLASS:
209 where the pump or pulsator has a resilient wall.
383.1 for pumps and pulsators mounted on a supply container to receive therefrom material to be dispensed.
400.5 for such devices where the pump actuator also operates an outlet valve.
400.8 where the pump is mounted on the same element as the material discharge outlet and movable therewith to and from operative position on the container.

This subclass is indented under subclass 401. Dispensers provided with means for securing the fluid pressure generating pump or pulsator in one position whereby operation is precluded.
(1) Note. Many of these devices are inter-engaging means on the piston rod and some part stationary relative to the container, so that the inter-engaged parts assist in removing the pump from the container. The piston rod handle may serve in its secured position as a handle for the supply container.

SEE OR SEARCH THIS CLASS, SUBCLASS:
384 for pumps and pulsators having such means and mounted on a supply container to receive therefrom material to be dispensed.

This subclass is indented under subclass 394. Dispensers in which a valve closing an opening for material under fluid pressure is opened by motion, relative to a wall of the container holding the material, of an actuator which is either (1) a tubular flow guide through which the material passes from the opening toward discharge or (2) a member moving inwardly of the container through the opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:
322 for dispensers with discharge assistants in which an actuator for a movable dispenser part projects through the final dispenser outlet discharging to the atmosphere.

SEE OR SEARCH CLASS:
169, Fire Extinguishers, 71 for devices of that class adapted to be transported by an operator to the fire and comprising a container for an extinguishing agent and gas pressure means for causing the discharge of the agent at the wall of the operator.

This subclass is indented under subclass 402.1. Dispensers having means for rendering the valve actuator inoperable.

SEE OR SEARCH THIS CLASS, SUBCLASS:
153.01 for dispensers with locks or seals.
182 for dispensers with covers barring access to the actuator.

This subclass is indented under subclass 402.1. Dispensers having means associated with the opening through which the dispensed material discharges to the atmosphere to protect the material at the opening from exposure to the atmosphere when not dispensing.

This subclass is indented under subclass 402.1. Dispensers having a cover which grips the container and encloses the portion of the end wall of the container on which the valve is mounted with such cover having an opening through which discharging material passes and means by way of which the valve is actuated to open.

SEE OR SEARCH THIS CLASS, SUBCLASS:
182 for dispensers with enclosing covers that may be removed to expose the actuating parts of the dispenser discharge means.

This subclass is indented under subclass 402.1. Dispensers having means for maintaining the valve in open position after the actuator which opened it has discontinued its opening movement.
(1) Note. The opening of the outlet valve may be due to human finger pressure and the dispensers in this subclass may have means to relieve the need for holding the valve open by the finger when continuous dispensing is desired.

This subclass is indented under subclass 402.1. Dispensers having a lever mounted or mountable on the container which can be actuated to move the valve actuator.

SEE OR SEARCH THIS CLASS, SUBCLASS:
70 for dispensers with timing devices which may have a lever in the system for actuating the dispenser.
402.13 for pressurized dispensers with over-caps which may
have a lever-like portion to actuate the outlet valve.

This subclass is indented under subclass 402.1. Dispensers in which there is a flow path provided for fluid entering the container and such flow path is, at least in part, other than a flow path along which the material moves toward discharge in dispensing.
(1) Note. Disclosures of filling by mere reverse flow along the dispensing flow path are classified according to the dispensing structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:
400.7 for fluid pressure dispensers under subclass 394 having a fluid pressure inlet and a material discharge outlet element in a common mounting adapted for manipulation as a unit for positioning on or removal from a container.

This subclass is indented under subclass 402.1. Dispensers in which there are available alternative flowpaths for the material to move along toward discharge and there is a means outside the container which can be moved relative to the container for electing the flowpath to be used in dispensing.