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 [Search a list of Patent Appplications for class 433]   CLASS 433,DENTISTRY
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SECTION I - CLASS DEFINITION

This class is a specific class under the broader class of Surgery and includes methods directed to or including specific dental steps, e.g., taking impressions of the teeth or gums, adapting a plate or model to a particular mouth formation, mounting teeth on a plate in a particular way, etc.; apparatus, implements, and devices relating to the treatment of teeth or gums, or the replacement of teeth.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

APPARATUS

Inasmuch as this class is defined in terms of specific rather than proximate function, many of the apparatus provided for in this class are also provided for broadly in the proximate function classes. Unless otherwise stated, patents claiming such apparatus should be classified as follows: patents with claims reciting structure peculiar to dentistry should be placed as originals in Class 433. Use of the functional adjective "dental" will not in itself cause placement in Class 433. For example, "a dental mirror comprising...", without further peculiar dental structure recited is classified broadly with mirrors in Class 359, Optics: Systems (Including Communication) and Elements (subclass 882 for a mirror with a handle). However, the recitation of means to prevent fogging or accumulation of water from a drill dictates classification in Class 433. Use of nouns peculiar to dentistry such as "a dental handpiece..." or "an articulator comprising...", will cause classification in Class 433. Apparatus and implements classified in Class 433 are generally those of the type used by a dentist. However, Class 433 will take a device which is disclosed as being used by individuals upon their own teeth, if not provided for elsewhere.

METHODS

Methods including steps normally performed by a dentist are classified in Class 433. Methods for making prostheses and appliances and which contain only those steps which are performed by a technician (e.g., molding, die shaping, etc.) are classified in the appropriate manufacturing class. Methods of treating a tooth by application of a named composition are classified in Class 433 if more than the mere application to a tooth is claimed (e.g., an additional step of drilling, cleaning, filling, etc.).

PROSTHESES OR APPLIANCES

Class 433 will take claims to a dental prosthesis or appliance, per se, unless claimed in terms of a particular composition or material and no structural limitations are recited. Patents including a claim to a composition, per se, are classified in the appropriate composition class.

SECTION III - REFERENCES TO OTHER CLASSES

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29Metal Working,   subclasses 592+ for miscellaneous processes for making dental parts; subclasses 426.1 for methods of disassembly; and subclasses 426.1+ for methods of assembly.
72Metal Deforming,   subclasses 60+ and 343+ for forming metal dentures or portions thereof by die shaping.
75Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,   appropriate subclasses for alloys for making and filling teeth, and other dental prostheses.
106Compositions: Coating or Plastic,   subclass 35 for coatings or plastic compositions specialized for dental use.
134Cleaning and Liquid Contact With Solids,   appropriate subclasses for methods and apparatus for cleaning dentures.
164Metal Founding,   appropriate subclasses for apparatus and methods for casting dental parts of metal. See particularly subclass 376 for investment type molds.
206Special Receptacle or Package,   subclass 63.5 for a special container, package, or carrying case for a dental implement, material, or article.
264Plastic and Nonmetallic Article Shaping or Treating: Processes,   subclasses 16+ for processes of molding dental parts of material other than metal, where a specific dental step is not recited.
378X-Ray or Gamma Ray Systems or Devices,   appropriate subclasses for X-ray sources, detectors, and related apparatus, or methods of using such apparatus in dentistry for producing images of teeth.
420Alloys or Metallic Compositions,   subclasses 526+ for amalgams, per se, which may be useful for dental purposes.
422Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,   appropriate subclasses for processes for sterilizing or disinfecting dental apparatus, and for apparatus for chemically disinfecting or sterilizing dental implements.
427Coating Processes,   subclasses 2.1+ for processes for making dental products comprising a coating step (e.g., dental implements, dental prostheses, etc.).
451Abrading,   subclasses 28+ for a process for abrading a dental prosthesis.
520Synthetic Resins or Natural Rubbers,   appropriate subclasses, particularly Class 523, subclasses 105+ for nonmedicated compositions containing a synthetic resin having utility specifically intended to be for contact with animal living tissue, especially subclasses 109 and 113- 120 for dental compositions or to processes of preparing said compositions.

SUBCLASSES

[List of Patents for class 433 subclass 1]    1VETERINARY DENTISTRY:
 This subclass is indented under the class definition.  Subject matter peculiar to the treatment or replacement of the teeth of animals.
  
[List of Patents for class 433 subclass 2]    2ORTHODONTICS:
 This subclass is indented under the class definition.  Subject matter relating to the correction of malocclusions, or the maintenance of desired position or alignment of natural teeth.
  
[List of Patents for class 433 subclass 3]    3Tool:
 This subclass is indented under subclass 2.  Apparatus to be used for manipulating or otherwise working with an orthodontic appliance.

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25+,for other dental tools.
141+,for hand manipulatable tools.

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29Metal Working,   subclasses 700+ for assembly and disassembly tools.
81Tools,   appropriate subclasses for hand tools of both general purpose and specific application which are not provided for elsewhere.
140Wireworking,   appropriate subclasses for wireworking tools.
  
[List of Patents for class 433 subclass 4]    4Plier type:
 This subclass is indented under subclass 3.  Apparatus comprising a hand manipulatable implement which includes two elongated members pivotally connected intermediate their lengths, each having cooperating work engaging jaw on one side of the pivot and a handle portion on the opposite side of the pivot.

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29Metal Working,   subclasses 225+ and 268 for disassembly and assembly pliers.
81Tools,   subclasses 300+ for pliers in general.
  
[List of Patents for class 433 subclass 5]    5Including extra-oral force transmitting means:
 This subclass is indented under subclass 2.  Subject matter wherein a tooth is aligned or positioned by a device which includes a member that is worn externally of the mouth and places the device under tension.
  
[List of Patents for class 433 subclass 6]    6By mouthpiece-type retainer:
 This subclass is indented under subclass 2.  Subject matter wherein a member which conforms in shape to a patient"s teeth is worn over the teeth to complete an orthodontic treatment or to correct mild malocclusions.
  
[List of Patents for class 433 subclass 7]    7By device having means to apply outwardly directed force (e.g., expander):
 This subclass is indented under subclass 2.  Subject matter wherein a tooth is positioned or aligned by a device which includes two force applying surfaces movable in divergent paths.
  
[List of Patents for class 433 subclass 8]    8Bracket:
 This subclass is indented under subclass 2.  Subject matter relating to an orthodontic element adapted to be fixed to a tooth and having means for rigidly connecting or positioning an arch wire or similar force transmitting strand thereto.
  
[List of Patents for class 433 subclass 9]    9Cemented to tooth:
 This subclass is indented under subclass 8.  Subject matter wherein the appliance is secured to a tooth by a settable binding substance.

SEE OR SEARCH THIS CLASS, SUBCLASS:

226+,for methods of treating or restoring natural teeth by filling or cementing.
  
[List of Patents for class 433 subclass 10]    10Having means to secure arch wire:
 This subclass is indented under subclass 8.  Subject matter wherein the orthodontic element includes means for rigidly connecting an arch wire or similar force transmitting strand thereto.
  
[List of Patents for class 433 subclass 11]    11Resiliently biased clamping member:
 This subclass is indented under subclass 10.  Subject matter wherein the means for rigidly connecting arch wire to the bracket includes an elastically yieldable retaining means.
  
[List of Patents for class 433 subclass 12]    12Tension adjustment nut:
 This subclass is indented under subclass 10.  Subject matter wherein a threaded member is provided and adapted to cooperate with threads formed on either the bracket or an arch wire engaged therewith whereby rotation of the threaded member causes a change in the tension of the arch wire.
  
[List of Patents for class 433 subclass 13]    13Separable securing means:
 This subclass is indented under subclass 10.  Subject matter wherein the arch wire may be rigidly connected to the bracket by a readily removable retaining element.
(1) Note. The retaining element must be readily removable from both the arch wire and the bracket.
  
[List of Patents for class 433 subclass 14]    14Lock pin:
 This subclass is indented under subclass 13.  Subject matter wherein the removable retaining element comprises a rigid member which is substantially elongated relative to any lateral dimension.
  
[List of Patents for class 433 subclass 15]    15Ligature wire:
 This subclass is indented under subclass 13.  Subject matter wherein the removable retaining element comprises a length of metallic strand which is adapted to be wrapped around the arch wire and a portion of the bracket.
(1) Note. Patent claiming brackets having structure for accommodating ligature wire have been placed as originals in this subclass; i.e., the ligature wire need not be claimed.
  
[List of Patents for class 433 subclass 16]    16Having adjustable or angular arch wire guide:
 This subclass is indented under subclass 8.  Subject matter wherein the bracket includes a wire engaging surface for locating or orienting the arch wire or similar force transmitting strand with respect to the tooth carrying the bracket, and either (a) the surface is adjustably carried by the bracket whereby it may assume any of an plurality of positions with respect to the bracket, or (b) the wire engaging surface forms an acute angle with the plane of occlusion whereby the arch wire or strand applies a torque to the tooth carrying the bracket.
  
[List of Patents for class 433 subclass 17]    17Having arch wire enclosing guide (e.g., buccal tube):
 This subclass is indented under subclass 8.  Subject matter wherein the bracket includes an elongated member having a passage therein through which the arch wire is placed.
  
[List of Patents for class 433 subclass 18]    18Means to transmit or apply force to tooth:
 This subclass is indented under subclass 2.  Subject matter relating to either (a) a strandlike member adapted to be secured to a bracket and placed under tension to apply force to a tooth, or (b) a device adapted to engage two brackets or teeth, or a bracket and arch wire, for creating a force between a tooth and arch wire.
  
[List of Patents for class 433 subclass 19]    19Acting between upper and lower teeth:
 This subclass is indented under subclass 18.  Subject matter wherein the strandlike member or the force creating device is connected to a tooth on the maxillary arch and to a tooth on the mandibular arch to transmit or apply a force between the two teeth.
  
[List of Patents for class 433 subclass 20]    20Arch wire:
 This subclass is indented under subclass 18.  Subject matter relating to a metallic strandlike member adapted to be secured to a bracket and placed under tension to apply force to a tooth.
  
[List of Patents for class 433 subclass 21]    21Metallic spring:
 This subclass is indented under subclass 18.  Subject matter comprising a device for creating a force between two teeth or between a tooth and arch wire comprising a metallic element of sufficient elastic property that it recovers its original shape when released after being distorted.

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267Spring Devices,   appropriate subclasses for springs in general.
  
[List of Patents for class 433 subclass 22]    22Arch wire attachment:
 This subclass is indented under subclass 2.  Subject matter comprising a discrete element adapted to be secured to an arch wire.
  
[List of Patents for class 433 subclass 23]    23Band:
 This subclass is indented under subclass 2.  Subject matter relating to an appliance element adapted to be positioned around substantially the entire circumference of a tooth for the purpose of securing a bracket thereto.
  
[List of Patents for class 433 subclass 24]    24Method of positioning or aligning teeth:
 This subclass is indented under subclass 2.  Method including a step for correcting a malocclusion.
  
[List of Patents for class 433 subclass 25]    25APPARATUS:
 This subclass is indented under the class definition.  Device or subcombination thereof for facilitating the replacement, treatment, or testing of either natural or artificial teeth.
(1) Note. The above apparatus do not remain in the patient"s mouth after treatment.
(2) Note. This and indented subclasses are intended to collect patents to devices for performing specific dental steps (i.e., those performed by a dentist). Devices of a more general nature (e.g., molds, forming dies, etc.) which are used by technicians are classified elsewhere unless specifically provided for in this class (see search notes below).

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1,for apparatus peculiar to the treatment or replacement of the teeth of animals.
3,for a tool for manipulating an orthodontic appliance.

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15Brushing, Scrubbing, and General Cleaning,   subclass 167.1 for toothbrushes.
24Buckles, Buttons, Clasps, etc.,   subclasses 305+ for combined fasteners, especially subclasses 326+ for dental chair fasteners.
29Metal Working,   subclasses 33+ and 650 for manufacturing apparatus which perform two or more diverse operations (as in the manufacture of dental prostheses); and subclasses 700+ for assembling and disassembling apparatus.
30Cutlery,   appropriate subclasses for hand held cutting implements in general. Class 433 will take cutting implements which are disclosed solely for use by a dentist.
118Coating Apparatus,   subclasses 200+ for toothbrushes provided with dentifrice supply means.
128Surgery,   subclasses 3+ for specula.
132Toilet,   subclasses 321+ for toothpicks and dental floss, and subclasses 308+ for a toilet kit including a toothbrush.
248Supports,   subclasses 637+ for machinery supports not peculiar to or including dental treating apparatus.
425Plastic Article or Earthenware Shaping or Treating: Apparatus,   subclass 2 for shaping means utilizing an anatomical body or portion thereof; and subclasses 175+ for investment molding apparatus.
451Abrading,   for abrading of dentures in a manufacturing or laboratory operation. Abrading or polishing natural teeth or mutually abrading upper and lower dentures is provided for in Class 433 (sole disclosure).
601Surgery: Kinesitherapy,   subclasses 136+ for gum massagers and subclasses 154+ for water getting devices for gums.
604Surgery,   subclasses 19+ for aspirating devices; and subclasses 181+ for handheld injecting devices.
606Surgery,   subclasses 79+ for orthopedic cutting instruments, subclass 116 for cutting means for marking animals, subclass 132 for skin cutting dermatomes; subclass 137 for cutting means used in animal sterilization, subclass 163 for cutting means used in debeaking or dehorning animals and subclasses 167+, for cutting instrument in general.
  
[List of Patents for class 433 subclass 26]    26Tooth selection guide:
 This subclass is indented under subclass 25.  Apparatus comprising a common holder for displaying a plurality of artificial teeth for the purpose of choosing the proper color, shape, etc.

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163,for an artificial tooth holder.

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206Special Receptacle or Package,   subclass 63.5 for a special container, package, or carrying case for a dental implement, material or article.
  
[List of Patents for class 433 subclass 27]    27Having condition sensor to transmit signal to regulate indicating device or controller:
 This subclass is indented under subclass 25.  Device wherein means are provided for detecting the random occurrence of a predetermined event and releasing, terminating, or modifying a flow of energy which in turn either produces a perceptible manifestation of the event, or regulates a control means (e.g., motor, valve, solenoid, etc.).
  
[List of Patents for class 433 subclass 28]    28Switch or valve controlled by presence of device on support:
 This subclass is indented under subclass 27.  Apparatus including a holder for storing an implement, and wherein removal or replacement of the implement on the holder activates or regulates the controller.
  
[List of Patents for class 433 subclass 29]    29Having means to emit radiation or facilitate viewing of the work:
 This subclass is indented under subclass 25.  Device including (a) means to increase the lighting intensity at selected areas, or (b) means to bend or reflect light waves to make characteristics of the device or work more readily discernable, or (c) means from which electromagnetic radiation is directed at the work.
(1) Note. Mouth props, per se, are excluded.

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140,for mouth props.

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128Surgery,   subclasses 3+ for specula; and subclass 23 for lamps.
250Radiant Energy,   appropriate subclass for X-ray sources, detectors and related apparatus, or methods of using such apparatus in dentistry for producing images of teeth.
362Illumination,   appropriate subclasses for lighting systems in general, especially subclasses 572+ and 577 for optic transmission fibers which modify light from a man-made source.
385Optical Waveguides,   appropriate subclasses for optic transmission fibers.
408Cutting by Use of Rotating Axially Moving Tool,   subclass 16 for drilling apparatus provided with means to facilitate viewing of the work.
  
[List of Patents for class 433 subclass 30]    30Mirror:
 This subclass is indented under subclass 29.  Apparatus including a polished or smooth surface for forming an image by reflection.

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359Optics: Systems (Including Communication) and Elements,   subclasses 838+ for mirrors in general, and dental mirrors without structure peculiar to dental use.
600Surgery,   subclasses 185+ , 246, and 247+ for surgical mirrors, especially subclasses 246 and 247+ for oral mirrors.
  
[List of Patents for class 433 subclass 31]    31Combined with other device:
 This subclass is indented under subclass 30.  Apparatus wherein the mirror is connected to a disparate dental device.
  
[List of Patents for class 433 subclass 32]    32Having heater or electrode:
 This subclass is indented under subclass 25.  Device provided with either (a) means to raise the temperature of the device, work or environment, or (b) a conductor for establishing electrical contact with the work.

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215+,for methods of treating teeth by heat or electricity.

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128Surgery,   subclasses 362+ for other light, thermal, or electrical application in surgery.
219Electric Heating,   appropriate subclasses for details of electrical heating devices in general.
606Surgery,   subclasses 2+ for light, subclasses 27+ for heat and subclasses 32+, for electrical applicators surgical instruments.
  
[List of Patents for class 433 subclass 33]    33Having support for patient or operator:
 This subclass is indented under subclass 25.  Apparatus including means to support a patient or operator against the force of gravity.

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5Beds,   subclass 600 for invalid beds and surgical patient supports.
297Chairs and Seats,   appropriate subclasses for dental chairs, per se.
378X-Ray or Gamma Ray Systems or Devices,   subclasses 38+ , 168+, and 190+ for tables or chairs for supporting persons for X-ray diagnosis, and having means peculiar thereto.
  
[List of Patents for class 433 subclass 34]    34Having static product shaping surface (e.g., mold):
 This subclass is indented under subclass 25.  Device comprising static structure for confining a settable fluent material that is allowed to contact said structure and harden into a specific contour.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71,for bite trays wherein an impression is obtained by biting into a solid material.

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249Static Molds,   subclass 54 for a mold for making a dental prosthesis.
264Plastic and Nonmetallic Article Shaping or Treating: Processes,   subclasses 16+ for a process of molding or otherwise shaping a dental prosthesis.
425Plastic Article or Earthenware Shaping or Treating: Apparatus,   subclass 2 for shaping apparatus utilizing an anatomical body or portion thereof as a shaping surface, and particularly subclasses 175+ for investment molding apparatus for dentures.
  
[List of Patents for class 433 subclass 35]    35Having cooling means:
 This subclass is indented under subclass 34.  Apparatus including means to carry heat away from the hardenable fluent material.

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249Static Molds,   subclasses 79+ for molds having cooling passages.
  
[List of Patents for class 433 subclass 36]    36Having settable material dispenser or fill opening:
 This subclass is indented under subclass 34.  Device including either a supply means for the settable fluent material or an orifice through which settable material is introduced into the static structure.

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80+,for an intra-oral dispenser, per se.

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141Fluent Material Handling, With Receiver or Receiver Coacting Means,   subclasses 311+ for filling means having a coacting receiver, other than a molding apparatus.
249Static Molds,   subclass 105 for a mold having static filling means in contact with the mold cavity.
425Plastic Article or Earthenware Shaping or Treating: Apparatus,   subclasses 447+ for molding apparatus including a shaping surface and means feeding fluent stock thereto, see the collection to search notes thereunder.
  
[List of Patents for class 433 subclass 37]    37Intra-oral:
 This subclass is indented under subclass 34.  Apparatus wherein the static structure is placed in the mouth of a patient to form a mold in conjunction with a surface inside the patient"s mouth.
  
[List of Patents for class 433 subclass 38]    38Comprising frame and flexible bib:
 This subclass is indented under subclass 37.  Apparatus wherein the surface of the static structure which supports or contacts the settable fluent material comprises a thin strip of pliant material supported in a relatively rigid construction.
  
[List of Patents for class 433 subclass 39]    39Deformable or flexible band (e.g., matrix):
 This subclass is indented under subclass 37.  Apparatus comprising a thin strip of material adapted to be bent or flexed to define a mold cavity in conjunction with a surface.

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155,for matrix clamps.
226,for a method of filling a tooth.
  
[List of Patents for class 433 subclass 40]    40Single tooth:
 This subclass is indented under subclass 37.  Apparatus wherein the static structure forms a mold in conjunction with the surface of one tooth only.

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223,for a method of constructing a prosthetic crown including the step of forming an impression of the natural tooth stump.
  
[List of Patents for class 433 subclass 41]    41Adjustable:
 This subclass is indented under subclass 37.  Apparatus wherein means are provided to vary the position or orientation of a first portion of the static structure relative to a second portion to accommodate different patients.

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249Static Molds,   subclass 155 for adjustable molds for forming different size or shaped product.
  
[List of Patents for class 433 subclass 42]    42Upper section relative to lower section:
 This subclass is indented under subclass 41.  Apparatus wherein the first and second relatively movable portions are adapted to form maxillary and mandibular casts of the patient"s mouth.
  
[List of Patents for class 433 subclass 43]    43Pivotally connected sections:
 This subclass is indented under subclass 41.  Apparatus wherein the first and second portions are hingedly attached to one another for swinging movement about an axis.
  
[List of Patents for class 433 subclass 44]    44Having positioning means or gauge:
 This subclass is indented under subclass 37.  Apparatus including a dimensional reference or other means to facilitate exact placement of the static structure inside the patient"s mouth.
  
[List of Patents for class 433 subclass 45]    45Having means to facilitate assembly or disassembly:
 This subclass is indented under subclass 37.  Device wherein means are provided to facilitate the putting together or taking apart of the various elements of the static structure.
  
[List of Patents for class 433 subclass 46]    46Detachable handle:
 This subclass is indented under subclass 45.  Apparatus wherein the static structure is provided with a specific portion by which a person may grasp the structure, and wherein the portion is readily removable from the remainder of the structure.

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16Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 110.1 through 430for handles, per se.
  
[List of Patents for class 433 subclass 47]    47Including release facilitating means:
 This subclass is indented under subclass 37.  Device wherein the static structure includes means specifically provided to assist in separating the hardened fluent material from either the static structure or the mouth of the patient.

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249Static Molds,   subclass 66.1 for a mold having means to apply force to remove or release a product from a mold.
  
[List of Patents for class 433 subclass 48]    48Mold material:
 This subclass is indented under subclass 37.  Apparatus wherein the static structure is formed of a specified composition.
  
[List of Patents for class 433 subclass 49]    49Work support:
 This subclass is indented under subclass 25.  Apparatus comprising means to sustain the weight of a workpiece and which in turn is adapted to be supported on a surface external to the patient.
(1) Note. Tool and equipment supports are excluded from this subclass.

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77+,for storage or nonuse supporting means for dental apparatus.
163,for a hand-held work carrier.

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269Work Holders,   appropriate subclasses for work holders not specifically provided for in the various treatment classes.
  
[List of Patents for class 433 subclass 50]    50Including tool, marker, or coupling means therefor:
 This subclass is indented under subclass 49.  Apparatus provided with either (a) an implement to contact and modify the workpiece being supported, or (b) structure adapted to cooperate with an implement or secure an implement to the support.

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75+,for a tool guide carried by the operator or the workpiece itself.

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269Work Holders,   subclass 48 , 87+, and 290+ for other than dental work holders and which have a tool guide or coupling means.
  
[List of Patents for class 433 subclass 51]    51Abrading tool or cutter:
 This subclass is indented under subclass 50.  Apparatus wherein the implement comprises a instrument which is rotated or otherwise moved while in contact with the surface of a workpiece to either (a) polish the surface or remove a portion of the surface by reducing the surface to powder or small fragments, or (b) penetrate the surface by a cutting edge or point.

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125,for a hand-held motor driven grinder or polisher.
142,for a hand manipulatable grinder or polisher.

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451Abrading,   subclasses 364+ for a work holder for an abrading apparatus or process.
  
[List of Patents for class 433 subclass 52]    52Including motor or power transmitting means:
 This subclass is indented under subclass 49.  Apparatus provided with a prime mover or means to receive the output of a prime mover.

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451Abrading,   subclasses 114+ for abrading by mutual moving contact between plural work pieces held respectively by relatively moving work holders.
  
[List of Patents for class 433 subclass 53]    53Including means to support plural workpieces for relative movement:
 This subclass is indented under subclass 49.  Apparatus comprising a common support having a first work carrying means for supporting a first workpiece and a second work carrying means for supporting a second work part, at least one of said work carrying means being movable on said common support toward or away from the other of said work carrying means.

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269Work Holders,   subclass 45 for similar work holders not used in dentistry.
  
[List of Patents for class 433 subclass 54]    54Articulator or attachment therefor:
 This subclass is indented under subclass 53.  Apparatus wherein the first and second work carrying means are specifically adapted to support maxillary and mandibular dental casts, respectively, and wherein the relative movement between the two work carrying means represents movement of the temporo-mandibular joints, or subcombinations peculiar thereto.

SEE OR SEARCH THIS CLASS, SUBCLASS:

196,for a method of using an articulator for positioning or aligning teeth.
  
[List of Patents for class 433 subclass 55]    55Having visual indicator or recorder:
 This subclass is indented under subclass 54.  Apparatus wherein the articulator includes a scale or other markings which provide a visual reference to the position or movement of the holder or a portion thereof.
  
[List of Patents for class 433 subclass 56]    56Including gauge or means for removably mounting gauge on support:
 This subclass is indented under subclass 54.  Apparatus wherein the articulator includes either means providing a dimensional or angular reference, or structure for removably carrying such referencing means.
  
[List of Patents for class 433 subclass 57]    57Including hinge having parts which cooperate in a manner allowing relative movement:
 This subclass is indented under subclass 54.  Apparatus wherein the relative movement between the first and second work carrying means is governed by a joint which comprises a fulcrum carried by one of said work carrying means and a cooperating surface on the other of said work carrying means, wherein the fulcrum pivots and translates relative to the cooperating surface.
  
[List of Patents for class 433 subclass 58]    58And resiliently biased:
 This subclass is indented under subclass 57.  Apparatus including means to elastically urge the fulcrum against its cooperating surface.
  
[List of Patents for class 433 subclass 59]    59Including adjustable incisal guide:
 This subclass is indented under subclass 54.  Apparatus comprising a surface associated with one of the work carrying means which cooperates with a guide pin or analogous structure associated with the other of the work carrying means to cause lateral movement between the two work carrying means as they approach one another, and wherein said surface may be adjusted to assume a selected angle or position with respect to a horizontal plane.
  
[List of Patents for class 433 subclass 60]    60Including means to secure workpiece on articulator:
 This subclass is indented under subclass 54.  Apparatus wherein at least one of the first and second work carrying means includes structure for fastening a dental cast thereto.
  
[List of Patents for class 433 subclass 61]    61Having pivot and additional adjustment between workpiece supporting means:
 This subclass is indented under subclass 54.  Apparatus wherein the work carrying means are connected through a joint which allows relative swinging movement about an axis through the joint, and wherein the joint in turn is also movable relative to one of the work carrying means.
  
[List of Patents for class 433 subclass 62]    62Additional pivot:
 This subclass is indented under subclass 61.  Apparatus wherein the joint is mounted for swinging movement relative to one of the work carrying means about a second axis.
  
[List of Patents for class 433 subclass 63]    63Rectilinear adjustment:
 This subclass is indented under subclass 62.  Apparatus wherein the joint is also capable of adjustable movement in a straight-line fashion relative to one of the work carrying means.
  
[List of Patents for class 433 subclass 64]    64Ball-and-socket:
 This subclass is indented under subclass 62.  Apparatus wherein the joint comprises a spherical convex surface mated with a concave surface to allow relative swinging movement of the work carrying means in more than one plane.
  
[List of Patents for class 433 subclass 65]    65Rectilinear adjustment only between supporting means and pivot:
 This subclass is indented under subclass 61.  Apparatus wherein the joint is mounted for rectilinear movement along a second axis relative to one of said work carrying means.
  
[List of Patents for class 433 subclass 66]    66Having lock or adjustable stop for pivoted work holder:
 This subclass is indented under subclass 54.  Apparatus wherein the work carrying means are connected through a joint which allows relative swinging movement between the two work carrying means, and either (a) means are provided to selectively allow or prevent relative swinging movement between the two work carrying means, or (b) abutment means are provided to limit the extent of relative movement of the work carrying means about the joint, and wherein the abutment means is movable to vary the relative positions of the work carrying means.

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403Joints and Connections,   subclasses 83+ for articulated members lockable at fixed positions.
  
[List of Patents for class 433 subclass 67]    67Workpiece supporting means between adjustable stop and pivot:
 This subclass is indented under subclass 66.  Apparatus wherein an adjustable abutment means is provided at a greater radius from the joint than the work carrying means.
  
[List of Patents for class 433 subclass 68]    68Having means to record or indicate jaw movement or position or dental occlusion:
 This subclass is indented under subclass 25.  Apparatus including means to provide a representation of the position or movement of the mandible, or of the positions or alignment of a patient"s teeth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

37+,for dental impressions trays.
140,for jaw positioners.
  
[List of Patents for class 433 subclass 69]    69Jaw movement:
 This subclass is indented under subclass 68.  Apparatus comprising means to provide a representation of maxillomandibular movement.

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55,for an articulator provided with means to record relative movement of the work (denture) carrying means.

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346Recorders,   appropriate subclasses for apparatus and methods in general for making records of the movement of instruments.
  
[List of Patents for class 433 subclass 70]    70By transfer of material to teeth:
 This subclass is indented under subclass 68.  Apparatus comprising means carrying a marking material which is transferred by contact to the teeth of a patient when the patient bites the material carrying means.
  
[List of Patents for class 433 subclass 71]    71By deformation of material:
 This subclass is indented under subclass 68.  Apparatus comprising a relatively easily deformed material or a holder therefor adapted to be contacted by the teeth of a patient to provide a visual representation of the patient"s bite.
  
[List of Patents for class 433 subclass 72]    72Having gauge or guide:
 This subclass is indented under subclass 25.  Apparatus including either (a) dimensional or angular reference, or (b) a surface adapted to be contacted by another device (e.g., a tool) to govern the movement of the device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44,for an impression tray provided with a gauge.
55,for an articulator provided with a gauge having indicia thereon.
56,for an articulator having a gauge without indicia.

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33Geometrical Instruments,   subclasses 511+ for anatomical gauges; and subclasses 783+ for anatomical calipers.
  
[List of Patents for class 433 subclass 73]    73Condylar referencing means (i.e., face bow):
 This subclass is indented under subclass 72.  Apparatus comprising means specifically provided for transferring a dimension measured with respect to the temporo-mandibular joints.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56,for an articulator provided with a face bow or means to mount or engage a face bow.
  
[List of Patents for class 433 subclass 74]    74Dowel pin or positioner therefor:
 This subclass is indented under subclass 72.  Apparatus comprising either (a) an elongated member for attachment to either an artificial tooth or base casting to ensure proper positioning of the tooth on the base following removal therefrom, or (b) a device for locating the member in the proper position on the tooth or base prior to fixing the member thereto.

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53,for dowel pin positioners having a support for the casting.
  
[List of Patents for class 433 subclass 75]    75Having tool, marker, or coupling or guiding means therefor:
 This subclass is indented under subclass 72.  Apparatus including either (a) an implement to contact and modify a workpiece, or (b) structure for cooperating with such an implement or for securing such an implement to the dimensional or angular reference means.

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50,for similar devices which include a work supporting means as well as tool, marker, or coupling means therefore.

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408Cutting by Use of Rotating Axially Moving Tool,   subclass 241 for drill guides of general utility; and subclass 202 for a depth limiting member.
  
[List of Patents for class 433 subclass 76]    76Parallel drilling:
 This subclass is indented under subclass 75.  Apparatus wherein means are provided to guide a drill such that the hole formed thereby will be parallel to an adjacent hole.
(1) Note. Included herein are dental drills having plural parallel drilling bits.

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408Cutting by Use of Rotating Axially Moving Tool,   subclass 46 for a paralleling drill of general utility; and subclass 241 for drill guides.
  
[List of Patents for class 433 subclass 77]    77Having storage or nonuse supporting means (e.g., tray, rack, cabinet,etc.):
 This subclass is indented under subclass 25.  Apparatus comprising means for stowing or carrying dental equipment or materials while they are not being used.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for equipment supports having means to automatically activate a tool when it is removed from the support.
29,for dental stands equipped with illuminating means.
33,for a dental stand provided with a patient"s or dentist"s chair.
49+,for work supports.
108+,for a dental stand or bracket having means for retaining a tool carrying arm in an adjusted or stored position.

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312Supports: Cabinet Structure,   appropriate subclasses for cabinet structure, per se, especially subclass 209 for dental equipment cabinets. Class 433 takes cabinets provided with specific dental equipment.
  
[List of Patents for class 433 subclass 78]    78Including hose retractor:
 This subclass is indented under subclass 77.  Apparatus comprising means for moving a length of flexible conduit from an extended operable position to a stowed position.

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242Winding, Tensioning, or Guiding,   subclasses 370+ for a reeling device, particularly subclasses 371+ for a spring powered reeling device.
  
[List of Patents for class 433 subclass 79]    79Movably mounted tray or holder:
 This subclass is indented under subclass 77.  Apparatus including an equipment support which is externally attached to a supporting structure by means which allows relative movement between the support and its supporting structure.

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108Horizontally Supported Planar Surfaces,   appropriate subclasses for movably mounted trays without specific dental structure (e.g., fluid conduits, controls, combined with dental chair, etc.).
  
[List of Patents for class 433 subclass 80]    80Having intra-oral dispensing means:
 Apparatus under subclass provided with a discharge outlet through which material passes from a supply into a patient"s mouth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for a syringe combined with a support and means for actuating a valve when the syringe is removed from the support.
36,for a dispenser claimed in combination with a mold.

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118Coating Apparatus,   subclasses 200+ for toothbrushes with dentifrice supplying means.
128Surgery,   subclass 66 for hydrants (i.e., water picks and the like).
222Dispensing,   appropriate subclasses for dispensers in general. See particularly the search notes in the class definition for other classes having dispensers.
604Surgery,   subclasses 77+ for Intra-oral medicator; and subclasses 181+ for hypodermic syringes.
  
[List of Patents for class 433 subclass 81]    81Endodontic:
 This subclass is indented under subclass 80.  Apparatus comprising means for dispensing material interiorly of a tooth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102,for an endodontic broach.
224,for endodontic methods.
  
[List of Patents for class 433 subclass 82]    82Combined with or attachment for work contacting tool or handpiece therefor:
 This subclass is indented under subclass 80.  Apparatus wherein the discharge outlet is provided in structure with either (a) includes a nondispensing means for contacting and modifying the work, or a handle for removably carrying a work contacting and modifying means or (b) is provided with means to connect the structure to a work contacting and modifying means.

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30+,for dental mirrors having air outlets adjacent the mirror surface for removing debris therefrom.
100,for dental drills having means to circulate lubricant or coolant through the tool.

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401Coating Implements With Material Supply,   appropriate subclasses for dentifrice dispensing tooth brushes.
408Cutting by Use of Rotating Axially Moving Tool,   subclasses 66+ for drilling apparatus which dispense coolant to the tool or work.
451Abrading,   subclass 488 for means to ventilate or cool an abrading tool or workpiece.
  
[List of Patents for class 433 subclass 83]    83Having means to compact dispensed material:
 This subclass is indented under subclass 82.  Apparatus wherein the means for contacting and modifying the work comprises a surface for compressing the dispensed material into the work.

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118+,for motor driven pluggers.
151,for spring operated pluggers.
164,for hand manipulatable pluggers.
  
[List of Patents for class 433 subclass 84]    84Power-driven tool having fluid control valve for dispensed material:
 This subclass is indented under subclass 82.  Apparatus wherein the dispensed material is liquid or gaseous and means are provided to regulate the flow through the discharge outlet.

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28,for a valve which is actuated by removing a dispenser from its nonuse supporting means.

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137Fluid Handling,   for condition responsive valves and valves in fluid systems.
251Valves and Valve Actuation,   appropriate subclasses for valve and actuator structure, per se.
  
[List of Patents for class 433 subclass 85]    85On or adjacent handpiece or handle:
 This subclass is indented under subclass 84.  Apparatus wherein an activator for the flow regulating means is located on or immediately adjacent to a portion of the device that is adapted to be gripped by the operator"s hand while the device is in use.

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100,for fluid motor regulating valves on dental handpieces.
  
[List of Patents for class 433 subclass 86]    86Ultrasonic tool:
 This subclass is indented under subclass 82.  Apparatus wherein the work contacting means is caused to vibrate by the prime mover at a very high frequency that is above audibility limit of the human ear.

SEE OR SEARCH THIS CLASS, SUBCLASS:

119,for an ultrasonic tool, per se.

SEE OR SEARCH CLASS:

601Surgery: Kinesitherapy,   subclasses 1+ for ultrasonic devices employed in kinesitherapy.
  
[List of Patents for class 433 subclass 87]    87Dispenser externally mounted on tool or handpiece:
 This subclass is indented under subclass 82.  Apparatus wherein the structure having the discharge outlet therein comprises a discrete device carried on the exterior of the treating device.
  
[List of Patents for class 433 subclass 88]    88Dispensed material discharged by fluid current:
 This subclass is indented under subclass 80.  Apparatus including means to direct a flow of fluid into contact with the material to be dispensed so that the fluid entrains or impels the material to carry or force the same into the patient"s mouth.

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222Dispensing,   subclasses 630+ for apparatus for dispensing material by a fluid current.
406Conveyors: Fluid Current,   appropriate subclasses for entrainment and transport of solid material by a fluid current.
451Abrading,   subclasses 75+ for sandblasting apparatus.
  
[List of Patents for class 433 subclass 89]    89Hand-held implement with material supply:
 This subclass is indented under subclass 80.  Apparatus which is supported entirely by the hand of the operator while being used and includes a reservoir for containing the supply of material to be dispensed.

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222Dispensing,   subclass 372 for a supply container and pump.
604Surgery,   subclasses 77+ for intra-oral medicators.
  
[List of Patents for class 433 subclass 90]    90Single charge device having plunger type ejector:
 This subclass is indented under subclass 89.  Apparatus including a pistonlike member movable through either the reservoir or an additional chamber supplied from the reservoir to expel the material contained in said reservoir or chamber through the discharge outlet.

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222Dispensing,   subclasses 386+ for dispensers comprising a container, discharge outlet and follower.
  
[List of Patents for class 433 subclass 91]    91Having suction orifice:
 This subclass is indented under subclass 25.  Apparatus including a nozzle at which a low pressure is created to draw air or material through or around a nozzle.

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15Brushing, Scrubbing, and General Cleaning,   subclasses 300.1+ for devices which clean by suction.
604Surgery,   subclasses 131+ for surgical aspirators.
  
[List of Patents for class 433 subclass 92]    92And suction pump or material separator:
 This subclass is indented under subclass 91.  Apparatus including either (a) means for creating subatomospheric pressure at the nozzle, or (b) means for recovering and retaining the removed material from the air current.
  
[List of Patents for class 433 subclass 93]    93And mouth prop, tongue guard depressor, or cheek spreader:
 This subclass is indented under subclass 91.  Apparatus wherein the nozzle is adapted to remove material from the mouth of a patient and means are provided to either (a) brace the patient"s mouth in an open position, (b) protect the patient"s tongue or retain the tongue at the bottom of the mouth, or (c) hold the cheek away from adjacent teeth.

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140,for a dental jaw, cheek, lip, or tongue positioner.

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600Surgery,   subclasses 184+ for surgical specula.
  
[List of Patents for class 433 subclass 94]    94And clamp or positioner:
 This subclass is indented under subclass 91.  Apparatus including means for holding or locating the nozzle in a desired position.
  
[List of Patents for class 433 subclass 95]    95And control valve for suction:
 This subclass is indented under subclass 91.  Apparatus including means for regulating the vacuum strength at the nozzle.

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84,for intra-oral dispensers provided with a fluid control valve.
98+,for dental apparatus having valves for actuating a fluid motor.
  
[List of Patents for class 433 subclass 96]    96In flexible conduit or eduction tube:
 This subclass is indented under subclass 91.  Apparatus wherein the nozzle comprises an aperture located in a readily deformable length of conduit.
  
[List of Patents for class 433 subclass 97]    97Having receptacle (e.g., cuspidor):
 This subclass is indented under subclass 25.  Apparatus including a basin or other container for receiving material.

SEE OR SEARCH CLASS:

4Baths, Closets, Sinks, and Spittoons,   subclass 263 for a dental cuspidor, per se.
  
[List of Patents for class 433 subclass 98]    98Including activator or regulator for controller or drive:
 This subclass is indented under subclass 25.  Apparatus wherein means are provided by which an energy flow or signal is initiated or modified to activate or otherwise regulate a motor or other controller (e.g., valve, solenoid, etc.).

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27+,for a condition responsive activator.

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200Electricity: Circuit Makers and Breakers,   appropriate subclasses for switch or actuating structure, per se.
327Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,   particularly subclasses 518+ for miscellaneous control circuits which can be used for handpieces or dental stands.
  
[List of Patents for class 433 subclass 99]    99In handpiece:
 This subclass is indented under subclass 98.  Apparatus wherein an actuator for the means which initiates or modifies an energy flow or signal is carried on a hand-held device which includes either means to drive or to transmit power to a tool releasably secured thereto.
  
[List of Patents for class 433 subclass 100]    100Fluid control valve:
 This subclass is indented under subclass 99.  Apparatus wherein the means for initiating or modifying an energy flow or signal comprises means for regulating the flow of a fluid which operates or drives a controller.

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85,for a handpiece provided with a valve for controlling a dispensed fluid.
  
[List of Patents for class 433 subclass 101]    101Foot operated:
 This subclass is indented under subclass 98.  Apparatus wherein an actuator for the means which initiates or modifies an energy flow or signal is located near the floor and adapted to be actuated by the foot of an operator.

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200Electricity: Circuit Makers and Breakers,   subclass 86.5 for foot operated electric switches.
251Valves and Valve Actuation,   subclass 295 for foot operated valves, per se.
318Electricity: Motive Power Systems,   subclass 551 for foot-operated motor controller systems having three or more positions.
  
[List of Patents for class 433 subclass 102]    102Broach:
 This subclass is indented under subclass 25.  Apparatus comprising an elongated member having serrations or projections on the periphery thereof and adapted to be pulled and pushed inside of a natural tooth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

75,for a broach provided with a penetration gauge or stop.
81,for the combination of a broach and endodontic dispenser.
224,for a method of using a broach.
  
[List of Patents for class 433 subclass 103]    103Having motor or means to transmit motion from motor to tool (e.g., "engine"):
 This subclass is indented under subclass 25.  Apparatus including either (a) a prime mover for driving a work contacting and modifying means, or (b) dynamic power transmission means between a prime mover and a work contacting and modifying means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for a motor operated in response to a sensed condition.
52,for a motor driven work holder.
82+,for a motor operated tool combined with a dispenser.
98+,for a motor driven apparatus wherein an activator (i.e., switch or valve) is claimed.
  
[List of Patents for class 433 subclass 104]    104Including lubricating or apparatus cooling means:
 This subclass is indented under subclass 103.  Apparatus wherein means are provided either (a) to apply a substance between moving parts of the apparatus which are in contact to reduce the friction therebetween, or (b) to carry heat away from the apparatus.
(1) Note. Apparatus which dispense the lubricating or cooling liquid into the patient"s mouth will be found in the dispensing subclasses above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82+,for motor operated tools which dispense the cooling or lubricating fluid into the patient"s mouth.

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384Bearings,   subclasses 313+ for cooling a bearing by a lubricant and subclasses 317+ for cooling a bearing by means other than lubricant.
408Cutting by Use of Rotating Axially Moving Tool,   subclasses 66+ for cooling or drilling apparatus in general.
451Abrading,   subclass 488 for abrading apparatus combined with cooling means.
  
[List of Patents for class 433 subclass 105]    105Including clutch or variable transmission:
 This subclass is indented under subclass 103.  Apparatus including either (a) a selectively engageable drive between the prime mover and tool, or (b) means to vary the ratio of the speed of movement of the prime mover"s working member to the speed of movement of the tool.

SEE OR SEARCH CLASS:

74Machine Element or Mechanism,   subclasses 640+ for gearing.
192Clutches and Power-Stop Control,   subclasses 30+ for a clutch, per se.
408Cutting by Use of Rotating Axially Moving Tool,   subclasses 124+ and 139 for drilling apparatus having clutches or variable speed transmissions, especially subclass 133 for plural speed drives.
474Endless Belt Power Transmission Systems or Components,   appropriate subclasses for variable speed transmission using a belt drive.
  
[List of Patents for class 433 subclass 106]    106Including braking means:
 This subclass is indented under subclass 103.  Apparatus wherein means are provided to decelerate the motor, tool, or transmission means.

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188Brakes,   appropriate subclasses for braking means, per se.
  
[List of Patents for class 433 subclass 107]    107Including means to apply counter force to counteract tool weight or movement:
 This subclass is indented under subclass 103.  Apparatus including an elongated bracket for movably connecting a tool or handpiece to a standard, wall or other support, and means are provided to offset the moment or inertia of the tool at the end of the bracket.

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248Supports,   subclass 162.1 for counterbalanced stands; and subclasses 280.11 and 292.11 for counterbalanced brackets in general.
408Cutting by Use of Rotating Axially Moving Tool,   subclass 235 for means to counterbalance a drill or drill supporting structure.
  
[List of Patents for class 433 subclass 108]    108And means to retain standard, arm, or handpiece in adjusted or stored position:
 This subclass is indented under subclass 103.  Device wherein the prime mover or power transmission means is carried by either an adjustable floor supported columnar structure, an adjustable elongated bracket or a hand-held tool chuck, and means are provided to releasably hold or support the columnar structure, bracket, or chuck in a predetermined position.

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248Supports,   subclass 127 for adjustable stands; and subclasses 274.1+ for adjustable brackets.
  
[List of Patents for class 433 subclass 109]    109Pivotally adjustable:
 This subclass is indented under subclass 108.  Apparatus wherein the columnar structure, bracket, or chuck are swingably attached to an adjacent supporting structure to permit swinging movement to the supported or held position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

79,for a swingably mounted tray or tool holder.
  
[List of Patents for class 433 subclass 110]    110Endless belt transmission:
 This subclass is indented under subclass 103.  Apparatus including a dynamic power transmission means which comprises an endless flexible member to transmit rotary or oscillatory motion from a prime mover to a tool.

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408Cutting by Use of Rotating Axially Moving Tool,   subclass 128 for belt and pulley driven drilling apparatus.
474Endless Belt Power Transmission Systems or Components,   appropriate subclasses for an endless belt power transmission; and particularly subclasses 58+ for a system wherein a power output pulley is selectively shiftable to different power output locations relative to an input pulley.
  
[List of Patents for class 433 subclass 111]    111Having tensioning means:
 This subclass is indented under subclass 110.  Apparatus including means to adjust the tension of the endless flexible member.

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474Endless Belt Power Transmission Systems or Components,   particularly subclasses 101+ for a belt tensioner for an endless belt transmission.
  
[List of Patents for class 433 subclass 112]    112Flexible shaft transmission:
 This subclass is indented under subclass 103.  Apparatus including a dynamic power transmitting means comprising an elongated member which is readily deformable in a direction perpendicular to its length.

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408Cutting by Use of Rotating Axially Moving Tool,   subclass 127 for flexible shaft driven drilling apparatus.
464Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts,   appropriate subclasses for flexible rotary shafts used in torque transmission.
  
[List of Patents for class 433 subclass 113]    113Having treadle:
 This subclass is indented under subclass 103.  Apparatus including a swiveling or lever device adapted to be depressed by the foot and which operates the drive for a tool.

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74Machine Element or Mechanism,   subclasses 512 and 561 for treadle linkage systems, per se.
408Cutting by Use of Rotating Axially Moving Tool,   subclass 136 for treadle powered drilling apparatus.
451Abrading,   subclass 341 for treadle actuated abrading apparatus.
  
[List of Patents for class 433 subclass 114]    114Hand-held tool or handpiece:
 This subclass is indented under subclass 103.  Apparatus comprising either (a) a hand-held device having a driven work contacting and modifying means, or (b) a hand-held chuck for removably holding a driven work contacting and modifying means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29+,for a hand-held tool or handpiece provided with means to facilitate viewing of the work.
50+,for a tool combined with means to support the work.
75+,for a tool provided with a gauge or guide.
82+,for a hand-held tool or handpiece provided with a dispenser (which may dispense the motive fluid).
99+,for a hand-held tool or handpiece provided with an activator (e.g., switch or valve).
  
[List of Patents for class 433 subclass 115]    115Having seal:
 This subclass is indented under subclass 114.  Apparatus including a substance or member employed specifically to block the passage of material into or out of the tool or handpiece.

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277Seal for a Joint or Juncture,   for a generic sealing means or process.
384Bearings,   subclasses 130+ for bearings with a seal.
415Rotary Kinetic Fluid Motors or Pumps,   subclasses 110+ and 170.1 for seals employed in rotary fluid motors other than Class 433 type.
416Fluid Reaction Surfaces (i.e., Impellers),   subclass 174 for a seal between an impeller or shaft and a static part.
  
[List of Patents for class 433 subclass 116]    116Having cover or guard:
 This subclass is indented under subclass 114.  Apparatus including means carried by the tool hand-held or handpiece either to protect the tool or handpiece, or to protect the patient or operator from contact with a tool.

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136+,for means to protect a tooth or the mouth from an adjacent work area.

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451Abrading,   subclasses 451+ for a cover or work guard for an abrading apparatus.
  
[List of Patents for class 433 subclass 117]    117Including shock absorbing or vibration dampening means:
 This subclass is indented under subclass 114.  Apparatus wherein the handpiece or hand tool includes means to reduce the transmission of vibration or sudden forces along the tool or handpiece.

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173Tool Driving or Impacting,   subclasses 210+ for impacting tools provided with cushioning means; and subclass 162 for tool drive means in general provided with vibration dampening means.
408Cutting by Use of Rotating Axially Moving Tool,   for drilling apparatus in general wherein the tool carrier is provided with vibration dampening means.
  
[List of Patents for class 433 subclass 118]    118Having reciprocating, vibrating, or oscillating output:
 This subclass is indented under subclass 114.  Apparatus wherein the prime mover or power transmission means causes a work contacting surface of a tool driven thereby to move back and forth along a straight-line or arcuate path.

SEE OR SEARCH THIS CLASS, SUBCLASS:

151,for spring operated pluggers.

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74Machine Element or Mechanism,   appropriate subclasses for mechanical movements, per se (e.g., rotary motion to reciprocating motion).
173Tool Driving or Impacting,   appropriate subclasses for reciprocating tool drives in general.
601Surgery: Kinesitherapy,   subclasses 46+ for vibrators; and subclasses 84+ for other kinesitherapeutic devices having specific movement.
  
[List of Patents for class 433 subclass 119]    119Ultrasonic:
 This subclass is indented under subclass 118.  Apparatus wherein the tool is vibrated at a very high frequency that is above the audibility limit of the human ear.

SEE OR SEARCH THIS CLASS, SUBCLASS:

86,for an ultrasonic tool combined with a dispenser.

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310Electrical Generator or Motor Structure,   subclasses 311+ for ultrasonic transducers, per se.
601Surgery: Kinesitherapy,   subclasses 1+ for ultrasonic kinesitherapeutic devices.
  
[List of Patents for class 433 subclass 120]    120Fluid motor:
 This subclass is indented under subclass 118.  Apparatus wherein the means to drive the tool comprises structure which converts the energy of a working fluid into movement of a working member to drive the tool.

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91Motors: Expansible Chamber Type,   appropriate subclasses for a fluid motor, per se.
601Surgery: Kinesitherapy,   subclasses 46+ for fluid motor driven vibrations; and subclasses 88+, 96, and 105 for other kinesitherapeutic devices driven by fluid motors.
  
[List of Patents for class 433 subclass 121]    121Impact by sudden release of spring:
 This subclass is indented under subclass 118.  Apparatus including a resilient member which alternately stores and releases energy from the prime mover or power transmission to drive the tool.

SEE OR SEARCH THIS CLASS, SUBCLASS:

151,for a hand manipulatable impact delivering tool which employs a spring which stores an energy input from the operator.

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173Tool Driving or Impacting,   subclasses 202+ for a spring driven hammerhead adapted to drive a tool.
  
[List of Patents for class 433 subclass 122]    122Having rotating cam or eccentric:
 This subclass is indented under subclass 118.  Apparatus comprising power transmission means which includes a driven member having a surface which is so arranged about an axis as to cause a cooperating member to be reciprocated to drive the tool.

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74Machine Element or Mechanism,   subclasses 53 , 54, and 55+ for mechanical movements of the rotary to or from reciprocating or oscillating type which include a cam.
173Tool Driving or Impacting,   subclasses 122+ for a tool driving hammer reciprocally driven through a linkage which includes a cam or eccentric.
  
[List of Patents for class 433 subclass 123]    123And adjustment for stroke, intensity, or position of tool:
 This subclass is indented under subclass 122.  Apparatus including means whereby one of the following may be varied: (a) the distance the tool travels during each reciprocation, (b) the impact with which the tool strikes the work, or (c) the orientation or attitude of the tool with respect to the hand engaged portion of the device.

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105,for tools or handpieces provided with a clutch to disengage the drive from a tool or chuck.
130,for a rotary hand tool or handpiece provided with an adjustable head.

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173Tool Driving or Impacting,   subclass 115 for a tool driving hammer element wherein means are provided to selectively vary the length of cyclic travel; and subclass 120 for a spring driven tool driving hammer element wherein means are provided to adjust the spring force.
  
[List of Patents for class 433 subclass 124]    124Angularly offset tool:
 This subclass is indented under subclass 118.  Apparatus wherein the longitudinal axis of the handpiece or the handle of the hand-held tool is angularly offset with respect to the movement axis of the tool.

SEE OR SEARCH THIS CLASS, SUBCLASS:

133,for a handpiece for driving a rotary tool wherein the axis of rotation of a tool held therein is angularly offset with respect to the longitudinal axis of the handle.
  
[List of Patents for class 433 subclass 125]    125Having abrading or polishing means:
 This subclass is indented under subclass 114.  Apparatus including a driven work contacting or modifying means adapted to either smooth a surface by friction or to reduce a surface to powder or small fragments by a plurality of natural cutting edges.

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142,for hand-held grinder or polisher that is not power-driven.

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451Abrading,   subclasses 344+ for a hand-held grinding or polishing device.
  
[List of Patents for class 433 subclass 126]    126Having means facilitating assembly or disassembly of tool or handpiece:
 This subclass is indented under subclass 114.  Apparatus wherein means are provided to facilitate the putting together or taking apart of distinct elements of the apparatus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146,for a hand manipulatable implement provided with means to facilitate assembly or disassembly of the implement.
  
[List of Patents for class 433 subclass 127]    127Means to releasably grip tool:
 This subclass is indented under subclass 126.  Apparatus including a chuck for releasably holding a work contacting and modifying means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

147,for a hand manipulatable tool having a removable tool element or bit.

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279Chucks or Sockets,   appropriate subclasses for tool chucks in general. See particularly the search notes under the class definition.
408Cutting by Use of Rotating Axially Moving Tool,   subclasses 239+ for drill chucks.
  
[List of Patents for class 433 subclass 128]    128Comprising locking means extending into groove or recess:
 This subclass is indented under subclass 127.  Apparatus wherein the chuck includes a movable member adapted to engage an indentation formed in the work contacting and modifying means to retain the work contacting and modifying means in the chuck.

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279Chucks or Sockets,   subclasses 76+ for nondental tool chucks of similar structure.
  
[List of Patents for class 433 subclass 129]    129Including axially movable collect to cam fingers:
 This subclass is indented under subclass 127.  Apparatus wherein the means for releasably holding a working contacting or modifying means comprises a plurality of gripping elements adapted to grip the periphery of the work contacting and modifying means by moving a member which surrounds said gripping elements to urge them inwardly to grip the work contacting and modifying means.

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279Chucks or Sockets,   subclasses 9.1+ for nondental tool chucks of similar structure.
  
[List of Patents for class 433 subclass 130]    130Having adjustable head:
 This subclass is indented under subclass 114.  Apparatus wherein a joint is provided between the handle and proximal end of the hand held-tool or handpiece which allows the longitudinal axis of the work contacting and modifying means to assume any one of the plurality of selected positions with respect to the longitudinal axis of the handle.

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123,for reciprocating, vibrating, or oscillating hand tools provided with adjustable heads.
  
[List of Patents for class 433 subclass 131]    131Having motor:
 This subclass is indented under subclass 114.  Apparatus wherein the hand-held tool or handpiece is provided with a prime mover to drive the work contacting and modifying means.

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98+,for a hand-held tool or handpiece having a motor and wherein an activator (i.e., switch or valve) is claimed.

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310Electrical Generator or Motor Structure,   subclass 40 for miniature motors.
  
[List of Patents for class 433 subclass 132]    132Rotary fluid turbine:
 This subclass is indented under subclass 131.  Apparatus wherein the prime mover comprises a disc or shaft which is rotated about an axis by a current of fluid directed against a series of reaction surfaces formed or carried on the disc or shaft.

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415Rotary Kinetic Fluid Motors or Pumps,   appropriate subclasses for rotary fluid turbine motors, per se. See particularly subclass 904 for a tool drive turbine art collection.
416Fluid Reaction Surfaces (i.e., Impellers),   appropriate subclasses for turbine rotor structure.
  
[List of Patents for class 433 subclass 133]    133Contra angled handpiece:
 This subclass is indented under subclass 114.  Apparatus comprising an elongated handpiece having a longitudinal axis angularly offset with respect to the longitudinal axis of the tool.

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124,for a reciprocating, vibrating, or oscillating angularly offset tool.
  
[List of Patents for class 433 subclass 134]    134Arbor:
 This subclass is indented under subclass 103.  Apparatus comprising a member having a first portion adapted to be received in a motor driven chuck, and a second portion adapted to releasably hold a tool bit.

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127+,for tool gripping features of dental handpieces.

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279Chucks or Sockets,   appropriate subclasses for an arbor in general.
451Abrading,   subclasses 490+ for a grinding tool support.
  
[List of Patents for class 433 subclass 135]    135Screw actuated clamp for apertured tool bit:
 This subclass is indented under subclass 134.  Apparatus wherein the second portion adapted to releasably hold a tool bit includes helically ribbed means adapted to be inserted through an opening in the tool bit and rotated to secure the tool bit to the arbor.
  
[List of Patents for class 433 subclass 136]    136Having absorption means or means to isolate tooth or mouth from adjacent area (e.g., bib, dam, etc.):
 This subclass is indented under subclass 25.  Apparatus including either (a) a piece of material adapted to be placed inside the mouth to absorb fluids, or (b) means for covering a tooth, mouth or other area of a patient to protect the same against injury or debris, or (c) means to engage and retain (a) or (b) in or adjacent the work area.

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2Apparel,   subclasses 46+ and 455 for guards and protectors.
  
[List of Patents for class 433 subclass 137]    137Bib:
 This subclass is indented under subclass 136.  Apparatus comprising means for covering an area of the patient externally of the mouth.

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2Apparel,   subclasses 46+ for a garment protector.
  
[List of Patents for class 433 subclass 138]    138And discrete oral fastening or positioning means:
 This subclass is indented under subclass 136.  Apparatus including means readily separable from the absorption or isolating means to removably attach or orient the absorption or isolation means to the patient"s mouth.
  
[List of Patents for class 433 subclass 139]    139Tooth clamp:
 This subclass is indented under subclass 138.  Apparatus wherein the attaching means is adapted to be fastened to a tooth inside the patient"s mouth.
(1) Note. Patents reciting a clamp and any structure which recognizes the presence of an absorption or isolating device have been placed as originals in this subclass.

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153+,for miscellaneous clamps used in dentistry.

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24Buckles, Buttons, Clasps, etc.,   subclasses 305+ for combined fasteners.
  
[List of Patents for class 433 subclass 140]    140Jaw, cheek, lip, or tongue positioner:
 This subclass is indented under subclass 25.  Apparatus comprising means to engage and retain either the mandible cheek, lip, or tongue, in a desired position.

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29+,for mirror or means to increase the lighting intensity in the vicinity of the work, excluding mouth props, per se.
68,for an adjustable mouth prop provided with a gauge to indicate jaw position.
93,for similar structure combined with a suction orifice.
138+,for a dam clamp provided with means to retain the jaw, tongue, etc., in a desired position.

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600Surgery,   subclasses 238+ for surgical specula without structure peculiar to dental use.
  
[List of Patents for class 433 subclass 141]    141Hand manipulatable implement:
 This subclass is indented under subclass 25.  Apparatus which is carried and actuated by the hand.

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3+,for orthodontic implements.
30+,for dental mirrors, per se, and combined with other implements.
72+,for gauges and implements combined therewith.
102,for endodontic broaches.

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81Tools,   appropriate subclasses for hand tools of both general purposes and specific application which are not provided for elsewhere. Class 433 will take any hand tool wherein the sole disclosure is for use by a dentist.
606Surgery,   subclasses 1+ for surgical instruments.
  
[List of Patents for class 433 subclass 142]    142Having abrading or polishing means:
 This subclass is indented under subclass 141.  Apparatus including a work contacting and modifying means adapted to either smooth a surface by friction or to reduce a surface to powder or small fragments by a plurality of natural cutting edges.

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125,for a motor driven abrading or polishing means.

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132Toilet,   subclasses 75.6 and 76.5+ for manicuring abrading implements.
451Abrading,   subclasses 523+ and 557+ for a manually manipulated abrading tool.
  
[List of Patents for class 433 subclass 143]    143Scaler:
 This subclass is indented under subclass 141.  Apparatus specifically adapted for scraping deposits from teeth.
  
[List of Patents for class 433 subclass 144]    144Having cutter:
 This subclass is indented under subclass 141.  Apparatus having a man made cutting edge or point.

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1,for veterinary cutters.

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30Cutlery,   appropriate subclasses for hand manipulatable cutters.
606Surgery,   subclasses 167+ for surgical cutting instruments.
  
[List of Patents for class 433 subclass 145]    145Including force multiplier:
 This subclass is indented under subclass 144.  Apparatus including structure (e.g., screw, lever, etc.) by which the force input from the hand of the operator may be increased at the cutter.

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30Cutlery,   subclasses 175+ for nippers; and subclasses 194+ for shears.
  
[List of Patents for class 433 subclass 146]    146Having means facilitating assembly or disassembly:
 This subclass is indented under subclass 141.  Apparatus wherein means are provided to facilitate the putting together or taking apart of two or more distinct portions of the implement.

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126+,for motor operated hand-held tools provided with means to facilitate assembly or disassembly of the tool.
  
[List of Patents for class 433 subclass 147]    147Removable tool element:
 This subclass is indented under subclass 146.  Apparatus including a distinct work contacting and modifying portion and means to facilitate the assembly and disassembly of said portion and the remainder of the implement.
  
[List of Patents for class 433 subclass 148]    148Separator:
 This subclass is indented under subclass 141.  Apparatus comprising means to apply oppositely directed forces against opposing faces of adjacent teeth.

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2+,for an orthodontic appliance to be worn by the patient over a period of time to permanently move one tooth relative to another.

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29Metal Working,   subclass 239 for disassembly apparatus for spreading parts apart or separating them from face to face engagement; and subclasses 244+ for other disassembly tools with force multiplying operators.
  
[List of Patents for class 433 subclass 149]    149Comprising tooth contacting wedge or wedge actuator:
 This subclass is indented under subclass 148.  Apparatus comprising a member having a tapering width and which is forced in a directing parallel to the opposing faces of two teeth to move the teeth.

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29Metal Working,   subclass 253 for assembly or disassembly apparatus having a wedge actuator.
254Implements or Apparatus for Applying Pushing or Pulling Force,   subclass 104 which is the residual locus for wedges.
  
[List of Patents for class 433 subclass 150]    150Impacting means:
 This subclass is indented under subclass 141.  Apparatus including means to impart a blow to a workpiece.

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118+,for motor driven impacting devices.

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29Metal Working,   subclasses 254+ for assembly or disassembly tools with an impact operator; and subclasses 275+ for those having a surface adapted to receive a blow from a hammer.
81Tools,   subclasses 52.3+ for impacted delivering tools.
  
[List of Patents for class 433 subclass 151]    151By sudden release of spring:
 This subclass is indented under subclass 150.  Apparatus including a resilient member which stores energy supplied by the hand of an operator, which energy is subsequently released to impart a blow to the work.

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121,for motor-driven tools which deliver an impact by sudden release of a spring compressed by the motor.
  
[List of Patents for class 433 subclass 152]    152Including work penetrating portion to secure tool to work:
 This subclass is indented under subclass 141.  Apparatus which is attached to a workpiece by a workpiece piercing member.

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29Metal Working,   subclasses 244+ for disassembly tools having a force multiplier, especially subclasses 264 and 281 for those having a screw-threaded work engager.
  
[List of Patents for class 433 subclass 153]    153Having relatively movable work engaging surfaces:
 This subclass is indented under subclass 141.  Apparatus including a plurality members, each having a work contacting face, and structure connecting the members which permits relative displacement between the work contacting faces.

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81Tools,   subclasses 300+ for tools in general having jaws positioned by relatively moving handles and subclass 487 for other hand-held tools having a clamp.
  
[List of Patents for class 433 subclass 154]    154Three or more relatively movable coacting surfaces:
 This subclass is indented under subclass 153.  Apparatus including three members, each having a work contacting face and wherein the structure connecting the members permits each of the work contacting faces to be displaced relative to the work contacting faces.
(1) Note. As an example, tooth or pin extractors having two clamping jaws for engaging a tooth or pin and a pivoted fulcrum or other member for engaging an adjacent area whereby a force is exerted on the clamping jaws, are found in this subclass.

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81Tools,   subclass 303 for pliers and the like having three or more jaws.
  
[List of Patents for class 433 subclass 155]    155Work accommodating slot or opening through surface (e.g., matrix clamp):
 This subclass is indented under subclass 154.  Apparatus wherein at least one of the members has an aperture or slot through which a portion of the work may pass.

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39,for matrix clamps wherein the matrix band is claimed.
  
[List of Patents for class 433 subclass 156]    156Including contoured work shaping surface:
 This subclass is indented under subclass 153.  Apparatus wherein one of the work contacting faces has a shape which is imparted to a workpiece by displacing the faces relative to each other.

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34+,for dental devices having a static product shaping surface.

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72Metal Deforming,   subclasses 409.01+ for contoured metal shaping pliers.
81Tools,   subclasses 424.5+ for work conforming tool jaw faces for gripping work.
  
[List of Patents for class 433 subclass 157]    157Pivoted:
 This subclass is indented under subclass 153.  Apparatus wherein the structure connecting the members defines a first pivot axis about which the work contacting faces on the elongated members are adapted to swing.
  
[List of Patents for class 433 subclass 158]    158Having actuating screw:
 This subclass is indented under subclass 157.  Apparatus including an elongated helically ribbed member which when rotated causes the work contacting face to pivot about the bearing surface.

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81Tools,   subclasses 388+ and 395+ for tools having screw-actuated pivoted jaws.
  
[List of Patents for class 433 subclass 159]    159Having handles to pivot surfaces (e.g., pliers):
 This subclass is indented under subclass 157.  Apparatus comprising two elongated members pivotally connected at points intermediate their length, each having a handle at one side of the pivot and the work contacting face on the opposite side of the pivot.

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4,for orthodontic pliers.

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29Metal Working,   subclass 268 for pliers for assembling or disassembling parts.
81Tools,   subclasses 300+ for pliers of general purpose or specific use and not provided for elsewhere.
606Surgery,   subclasses 205+ for forceps.
  
[List of Patents for class 433 subclass 160]    160Plural pivots:
 This subclass is indented under subclass 159.  Apparatus wherein a second pivot is provided spaced from the first pivot and which connects two elements of the apparatus for relative swinging movement.

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81Tools,   subclasses 350+ , 367+, and 424 for pliers in general provided with plural pivots.
  
[List of Patents for class 433 subclass 161]    161Screw actuated:
 This subclass is indented under subclass 153.  Apparatus including an elongated helically ribbed member that when rotated moves the work contacting faces.

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139,for screw actuated tooth clamps.

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29Metal Working,   subclasses 256+ for screw-actuated assembly or disassembly tools.
  
[List of Patents for class 433 subclass 162]    162Resiliently biased:
 This subclass is indented under subclass 153.  Apparatus wherein the work contacting faces are elastically urged to a desired position after they are moved from said position.

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81Tools,   subclass 427 for pliers having resiliently urged handles.
294Handling: Hand and Hoist-Line Implements,   for tweezers in general.
606Surgery,   subclasses 210+ for tweezers in general.
  
[List of Patents for class 433 subclass 163]    163Work carrier:
 This subclass is indented under subclass 141.  Apparatus including a surface which is provided to support dental work or material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26,for a tooth selection guide comprising a holder for one or more tooth models.
153,for carriers having relatively movable surfaces to grip the work.

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294Handling: Hand and Hoist-Line Implements,   appropriate subclasses for handheld article carriers and manipulators in general.
  
[List of Patents for class 433 subclass 164]    164Plugger:
 This subclass is indented under subclass 141.  Apparatus including a surface adapted to be pressed against a filling in a tooth to compact the filling material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

83,for pluggers with filling dispensers.
118+,for motor operated pluggers.
150,for hand manipulatable pluggers having a spring or other impact delivering or receiving means.
  
[List of Patents for class 433 subclass 165]    165Tool bit:
 This subclass is indented under subclass 25.  Apparatus comprising a work contacting and modifying element adapted to be received in a chuck or socket whereby the element may be driven or manipulated.

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407Cutters, for Shaping,   appropriate subclasses for work shaping tool in general (other than wood); see especially subclasses 53+ for face or end mill cutters.
408Cutting by Use of Rotating Axially Moving Tool,   subclasses 199+ for drill bits in general.
  
[List of Patents for class 433 subclass 166]    166Abrading or polishing:
 This subclass is indented under subclass 165.  Apparatus wherein the work contacting and modifying element is adapted to either smooth a surface by friction or reduce a surface to powder or small fragments by a plurality of natural cutting edges.

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451Abrading,   subclasses 526+ for a flexible member abrading tool and subclasses 540+ for a rigid abrading tool.
  
[List of Patents for class 433 subclass 167]    167PROSTHODONTICS:
 This subclass is indented under the class definition.  Subject matter relating to artificial teeth.
(1) Note. Utilization of an existing tooth or portion thereof for purpose other than fastening adjacent artificial teeth is considered repair rather than replacement.
(2) Note. Methods for making dental prostheses are proper for Class 433 if they include specific dental steps (e.g., impression taking, fitting the patient with the denture, etc.). Generally, those process claims which recite only manufacturing steps will be classified in the appropriate manufacturing class (see search notes below). A claim to a dental prosthesis, per se, is properly classified in this class if significant structure is recited.

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25,for apparatus employed in the process of replacing missing teeth with artificial teeth.
215+,for a method or material for replacing a portion of a natural tooth.

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29Metal Working,   subclasses 400.1+ for processes of mechanical manufacture including diverse manufacturing steps.
72Metal Deforming,   appropriate subclasses for a method or apparatus for die shaping a denture base or other prosthodontic element.
106Compositions: Coating or Plastic,   subclass 35 for plastic or coating compositions used in dental prostheses.
164Metal Founding,   appropriate subclasses for a method of casting a prostodontic element.
205Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,   subclasses 67+ for electroforming methods for production of dentures.
264Plastic and Nonmetallic Article Shaping or Treating: Processes,   subclasses 16+ for a process for forming a denture or element thereof.
520Synthetic Resins or Natural Rubbers,   appropriate subclasses, particularly Class 523, subclasses 105+ for nonmedicated compositions containing a synthetic resin having utility specifically intended to be for contact with animal living tissue, especially subclasses 109 and 113-120 for dental compositions or to processes of preparing said compositions.
  
[List of Patents for class 433 subclass 168.1]    168.1Denture liner or cushion:
 This subclass is indented under subclass 167.  Subject matter relating to the provision of a soft layer or pad of material on the mouth contacting surface of a denture.

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199.1,for laminated or other plural layer denture bases.

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523Synthetic Resins or Natural Rubbers,   subclass 120 for a dentures plate liner specified only in terms of a composition of the type there provided for. (See Lines With Other Classes under the main definition of Class 433 for the general line.)
  
[List of Patents for class 433 subclass 169]    169Stress breaker:
 This subclass is indented under subclass 167.  Subject matter wherein a denture includes means to redirect or absorb forces during mastication to protect the denture from damage.
  
[List of Patents for class 433 subclass 170]    170Between tooth engaging clasp and denture:
 This subclass is indented under subclass 169.  Subject matter including means to secure the denture in the mouth, which comprises opposing surfaces which are elastically urged against opposing exterior surfaces of an abutment tooth, and wherein the means to redirect or absorb mastication forces forms the connection between the denture and securing means.
  
[List of Patents for class 433 subclass 171]    171Prefabricated denture:
 This subclass is indented under subclass 167.  Subject matter relating to a standard denture which is modified to conform to the individual patient.
  
[List of Patents for class 433 subclass 172]    172Holding or positioning denture in mouth:
 This subclass is indented under subclass 167.  Subject matter relating to locating or securing one or more artificial teeth in the mouth.
(1) Note. Patents in this subclass must relate to the connection between a denture and either a natural tooth or some part of the patient"s mouth. Patents relating to the connection between a denture and an artificial tooth will be found in subclasses below.

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191,for a method or means for securing an artificial tooth to a base.
219,for a method or material for attaching a crown, per se, to a natural tooth.
  
[List of Patents for class 433 subclass 173]    173By fastening to jawbone:
 This subclass is indented under subclass 172.  Subject matter wherein the denture is secured directly to the jawbone of the patient.

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201.1,for subject matter relating to the construction or composition of a dental implant.
  
[List of Patents for class 433 subclass 174]    174By screw:
 This subclass is indented under subclass 173.  Subject matter wherein the denture is secured to the jawbone by an elongated helically ribbed member.
  
[List of Patents for class 433 subclass 175]    175Shape of removed tooth root:
 This subclass is indented under subclass 173.  Subject matter wherein the lower portion of the denture that is secured to the jawbone is shaped to correspond to the configuration of the root of a natural tooth which had previously occupied the same position in the mouth.
  
[List of Patents for class 433 subclass 176]    176By blade:
 This subclass is indented under subclass 173.  Subject matter wherein the denture is secured to the jawbone by a flat platelike member extending from the bottom of an artificial tooth.
  
[List of Patents for class 433 subclass 177]    177By resiliently biased means:
 This subclass is indented under subclass 172.  Subject matter wherein denture is secured or located in the patient"s mouth by means which includes a member that must be deformed elastically when applying the denture to the mouth.

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169+,for a denture having resilient means to absorb the forces of mastication.
  
[List of Patents for class 433 subclass 178]    178Tooth engaging clasp:
 This subclass is indented under subclass 177.  Subject matter wherein the locating or securing means includes opposing surfaces which are elastically urged against opposing exterior surfaces of a natural or artificial tooth.

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139,for a tooth clamp for holding a dam or absorption roll in place.
170,for a resilient tooth engaging clasp connected to a denture by a stress breaker.

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24Buckles, Buttons, Clasps, etc.,   subclasses 530+ for resiliently biased clasps.
  
[List of Patents for class 433 subclass 179]    179Acting between upper and lower denture:
 This subclass is indented under subclass 177.  Subject matter wherein the elastically deformable means from a connection between an upper denture and a lower denture to bias them away from each other.
  
[List of Patents for class 433 subclass 180]    180By cement or adhesive:
 This subclass is indented under subclass 172.  Subject matter wherein a denture is secured in the patient"s mouth by a settable fluent material or other binding substance.

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226+,for methods of treating or restoring natural teeth by filling or cementing.

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106Compositions: Coating or Plastic,   subclass 35 for dental filling or cement compositions devoid of a synthetic resin.
520Synthetic Resins or Natural Rubbers,   especially Class 523, subclasses 116+ for a composition containing a synthetic resin used as a cement or a filling; and subclass 120 for a composition to be used as a denture plate, adhesive, denture plate liner, or a denture plate cushion.
  
[List of Patents for class 433 subclass 181]    181Including mating connectors on denture and abutment tooth:
 This subclass is indented under subclass 180.  Subject matter wherein the denture is secured to a natural tooth by a settable fluent material and the denture and the natural tooth are provided with respective elements which cooperatively engage each other to supplement or reinforce the settable material bond.

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191,for connectors for securing artificial teeth together.
  
[List of Patents for class 433 subclass 182]    182And additional member for securing connectors together:
 This subclass is indented under subclass 181.  Subject matter wherein a third discrete element is provided for securing together the respective elements on the denture and natural tooth.
  
[List of Patents for class 433 subclass 183]    183Including crown cemented to existing tooth:
 This subclass is indented under subclass 180.  Subject matter wherein the denture has attached thereto a simulation of the exposed portion of a tooth, and the denture is secured in the mouth of fixing the simulation to the base of an existing natural tooth using a settable adhesive material.

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218,for crown construction or attachment to a natural tooth.
  
[List of Patents for class 433 subclass 184]    184By suction:
 This subclass is indented under subclass 172.  Subject matter wherein the denture is provided with means engaging a natural surface inside the mouth to form a chamber therewith, which chamber is placed under subatmospheric pressure to secure the denture in the mouth.

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24Buckles, Buttons, Clasps, etc.,   subclasses 305+ for vacuum-type fasteners.
  
[List of Patents for class 433 subclass 185]    185Including valve or air passageway leading from suction area:
 This subclass is indented under subclass 184.  Subject matter wherein means are provided to selectively establish communication between the suction chamber and the environment.
  
[List of Patents for class 433 subclass 186]    186Cup or disc:
 This subclass is indented under subclass 184.  Subject matter wherein the means which engages a natural surface inside the mouth comprises a concave or flat, substantially rounded pliant member carried by but distinct from the base of the denture.
  
[List of Patents for class 433 subclass 187]    187Plural cups or discs:
 This subclass is indented under subclass 186.  Subject matter wherein a plurality of rounded pliant members are provided on the denture.
  
[List of Patents for class 433 subclass 188]    188Suction area comprises recess or cavity formed in denture base:
 This subclass is indented under subclass 184.  Subject matter wherein the chamber is formed by a natural surface inside the mouth and an indentation formed in the denture base.
  
[List of Patents for class 433 subclass 189]    189By magnetic material:
 This subclass is indented under subclass 172.  Subject matter wherein a denture is secured in the mouth of the patient by magnetic attraction between material carried by the denture and material inside the mouth.

SEE OR SEARCH CLASS:

24Buckles, Buttons, Clasps, etc.,   subclass 304 for magnetic fasteners.
  
[List of Patents for class 433 subclass 190]    190Connecting right and left segments of partial denture:
 This subclass is indented under subclass 167.  Subject matter relating to a connector for joining spaced bilateral parts of a maxillary or mandibular removable partial denture.
  
[List of Patents for class 433 subclass 191]    191Attaching artificial tooth to base or adjacent artificial tooth:
 This subclass is indented under subclass 167.  Subject matter relating to the connection between an artificial tooth and an intra-oral common support for a plurality of teeth, or between two adjacent artificial teeth.

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206,for subject matter relating to the connection between a tooth facing and backing wherein the backing may be connected to an adjacent backing to form a bridge.
  
[List of Patents for class 433 subclass 192]    192By cavity in tooth for base material:
 This subclass is indented under subclass 191.  Subject matter wherein an artificial tooth having a hole or other indentation in surface is united to a common support for a plurality of such teeth by causing a portion of the support material to flow into the indentation and then harden.
  
[List of Patents for class 433 subclass 193]    193Connected to base by discrete connecting member:
 This subclass is indented under subclass 191.  Subject matter wherein an individually distinct device forms the connection between an artificial tooth and a common support for a plurality of such teeth.
(1) Note. A metallic pin embedded in a porcelain facing and attached to the base is considered to be "individually distinct" as defined above. However, for the pin-to-facing connection, per se, see the search note below to subclasses 206+.

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206+,for a metallic attachment to an artificial tooth, which may be a tooth to base connecting member (e.g., "connecting pin").
  
[List of Patents for class 433 subclass 194]    194And additional discrete element for securing connecting member to tooth:
 This subclass is indented under subclass 193.  Subject matter wherein a second device which is individually distinct from the tooth, base, and connecting member forms the connection between the tooth and the connecting member.
  
[List of Patents for class 433 subclass 195]    195Embedded in base material:
 This subclass is indented under subclass 193.  Subject matter wherein the individually distinct device which forms the connection between an artificial tooth and support is fixed to the material of the support by either forming the support material about the connecting device or by driving the connecting device into the support material.
  
[List of Patents for class 433 subclass 196]    196Orienting or positioning teeth:
 This subclass is indented under subclass 167.  Subject matter relating to the determination of the precise location and attitude of an artificial tooth with respect to another artificial or natural tooth.

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53+,for means to support and position plural workpieces relative to each other.
54+,for articulators.
68+,for means to record or indicate dental occlusion.
  
[List of Patents for class 433 subclass 197]    197Cutting edge shape or arrangement:
 This subclass is indented under subclass 167.  Subject matter relating to the profile or relative position or configuration of a masticating edge or surface of an artificial tooth.

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202.1,for other subject matter relating to artificial tooth shape or composition.
  
[List of Patents for class 433 subclass 198]    198Metallic cutting edge:
 This subclass is indented under subclass 197.  Subject matter wherein the masticating edge or surface is formed from metal.

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206+,for a metallic tooth, tooth portion, or attachment wherein the specific cutting edge shape is not recited.
  
[List of Patents for class 433 subclass 199.1]    199.1Denture base construction:
 This subclass is indented under subclass 167.  Subject matter relating to the particular structure of a intraoral common support for a plurality of artificial teeth.

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208,for a metallic backing for an artificial tooth, a plurality of which may be soldered together to form a base.

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106Compositions: Coating or Plastic,   subclass 35 for dental plastic or coating compositions wherein no significant denture structure is recited in the claims (i.e., the denture is only nominally recited).
520Synthetic Resins or Natural Rubbers,   particularly Class 523, subclasses 115+ for a composition containing a synthetic resin for use as a tooth or bone replacement, restorative, or implant or to processes or preparing said composition. (See Prostheses Or Appliances under the main definition of Class 433 for the line.)
  
[List of Patents for class 433 subclass 200.1]    200.1Metallic:
 This subclass is indented under subclass 199.1.  Subject matter wherein the common support is formed of metal.

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72Metal Deforming,   appropriate subclasses for method or apparatus for swaging dental plates.
420Alloys or Metallic Compositions,   for alloys or metallic compositions.
  
[List of Patents for class 433 subclass 201.1]    201.1Dental implant construction:
 This subclass is indented under subclass 167.  Subject matter relating to either the structure or a process of making a dental prosthesis which is adapted to be fixed to the jawbone.

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173+,for a method or structure for fastening an implant to the jawbone.

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520Synthetic Resins or Natural Rubbers,   particularly Class 523, subclasses 115+ for a composition containing a synthetic resin suitable for use as a tooth or bone replacement, restorative, or implant, or to processes of preparing said composition. (See Prostheses Or Appliances of the main definition of Class 433.)
  
[List of Patents for class 433 subclass 202.1]    202.1Tooth construction:
 This subclass is indented under subclass 167.  Subject matter relating to either the structure of or a process of adapted to be fixed to a base or an adjacent natural or artificial tooth.

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218+,for construction or composition of a prosthetic crown.

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106Compositions: Coating or Plastic,   subclass 35 for dental plastic or coating composition wherein no significant structure is recited (i.e., a tooth is only nominally recited).
520Synthetic Resins or Natural Rubbers,   particularly Class 523, subclasses 115+ for a composition containing a synthetic resin for use as a tooth or bone replacement, restorative, or implant or to processes of preparing said composition. (See Prostheses Or Appliances of the main definition Class 433.)
  
[List of Patents for class 433 subclass 203.1]    203.1Indicia, tinting or shading:
 This subclass is indented under subclass 202.1.  Subject matter relating to either (1) the provision of markings on the surface of the artificial tooth by which is may be identified, or (2) the hue or relative lightness of an artificial tooth to tooth portion.

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26,for a tooth shade or hue selection guide.
199.1,for methods and compositions for obtaining desired tinting or shading of denture bases.

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264Plastic and Nonmetallic Article Shaping or Treating: Processes,   subclass 20 for shaping or treating a tooth and providing a color or tone differential across the member. Class 433 provides for patents claiming the tooth itself.
  
[List of Patents for class 433 subclass 204]    204Having means facilitating replacement of tooth portion:
 This subclass is indented under subclass 202.1.  Subject matter wherein the artificial tooth comprises two discrete portions, the connection between the portions being of such a nature to permit one portion to be readily removed from the remaining portion for repair or replacement.
(1) Note. The two "tooth portions" may comprise a porcelain facing and metallic backing.
  
[List of Patents for class 433 subclass 205]    205Having plural piece backing or discrete connecting means for adjacent tooth portions:
 This subclass is indented under subclass 202.1.  Subject matter wherein the artificial tooth comprises either (a) a tooth facing and a plurality of adjacent plate sections attached to the facing, or (b) a plurality of discrete tooth portions mechanically fastened together by means individually distinct from either tooth portion.

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193+,for a discrete connecting means between an artificial tooth and a base.
211,for a discrete connecting pin embedded in a tooth for attaching the tooth to a base or backing.
  
[List of Patents for class 433 subclass 206]    206Metallic tooth, tooth portion, or attachment:
 This subclass is indented under subclass 202.1.  Subject matter wherein the artificial tooth is formed of metal or has fixed thereto a metallic device.

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198,for a tooth having a metallic cutting edge.
  
[List of Patents for class 433 subclass 207]    207Alloy:
 This subclass is indented under subclass 206.  Subject matter wherein the metal is a homogeneous mixture of two or more different base metals.

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200,for denture bases formed from particular alloys.

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420Alloys or Metallic Compositions,   subclasses 526+ for amalgams, per se, useful in making and filling teeth.
  
[List of Patents for class 433 subclass 208]    208Metallic backing:
 This subclass is indented under subclass 206.  Subject matter relating to a plate or other covering formed of metal and adapted to be secured to the inside surface of an artificial tooth facing.

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191+,for an artificial tooth backing having specific means for connecting or facilitating the connection to an adjacent backing or base.
205,for a tooth facing connected to a metallic backing by a discrete connecting means.
  
[List of Patents for class 433 subclass 209]    209Having dovetail, "t", pinhead or bulbous protrusion extending in congruent recess in facing:
 This subclass is indented under subclass 208.  Subject matter wherein the backing is provided with a protruding portion provided with an enlargement at its distal end having a cross sectional shape of a dovetail, "T", pinhead, or bulb, the enlargement being placed in a correspondingly shaped recess in the tooth facing to unite the tooth facing and backing.

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181,for similarly shaped protrusions carried by dentures to secure the denture in the mouth.

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403Joints and Connections,   subclass 381 for corresponding connections between members other than teeth.
  
[List of Patents for class 433 subclass 210]    210Having pin extending into facing:
 This subclass is indented under subclass 208.  Subject matter wherein the backing is provided with a protruding portion adapted to be inserted into the tooth facing, and wherein the protruding portion is substantially elongated in a direction away from the backing relative to any lateral dimension of the portion.
  
[List of Patents for class 433 subclass 211]    211Connecting pin:
 This subclass is indented under subclass 206.  Subject matter wherein the artificial tooth has fixed thereto a metallic pin adapted to secure the tooth to a base or backing.
(1) Note. This subclass contains subject matter relating to tooth facing to pin connections and connecting pin structure, per se.

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195,for patents showing or claiming the pin to base connection.
  
[List of Patents for class 433 subclass 212.1]    212.1Nonmetallic composite:
 This subclass is indented under subclass 202.1.  Subject matter wherein the artificial tooth comprises two distinct portions, each formed of a different nonmetallic material.
(1) Note. See Prostheses Or Appliances in the main definition for the line with Chemical Composition Classes.
  
[List of Patents for class 433 subclass 213]    213Preliminary casting, model, or trial denture:
 This subclass is indented under subclass 167.  Subject matter relating to the formation or use of a positive likeness of part of the oral cavity for the purpose of constructing a finished dental prosthesis.

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34+,for molds.
49+,for work supports for measuring and working with models, especially subclasses 54+ for articulators.
74,for dowel pins or positioners therefor (nonwork supporting type).
144,for model trimmers.

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264Plastic and Nonmetallic Article Shaping or Treating: Processes,   subclasses 16+ for processes by which dentures or teeth are formed which do not include specific dental steps (e.g., impression taking, articulation, try-in, etc.).
  
[List of Patents for class 433 subclass 214]    214Impression taking or bite determination:
 This subclass is indented under subclass 167.  Subject matter relating to the formation or use of either (a) an imprint or negative likeness of a part of the dental cavity, or (b) a visual record indicating the occlusal relationship of a patient"s teeth.

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37+,for impression trays.
68+,for apparatus employed in determining a patient"s bite.

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520Synthetic Resins or Natural Rubbers,   particularly Class 523, subclass 109 for a composition containing a synthetic resin wherein said composition is useful in taking impressions of the mouth or to processes of preparing said composition.
  
[List of Patents for class 433 subclass 215]    215METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING NATURAL TEETH:
 This subclass is indented under the class definition.  Subject matter comprising either (a) a step of removing, repairing, testing, or prophylactically treating a natural tooth, or (b) a device which is employed in the restoration or treatment of a natural tooth and which remains in the patient"s mouth.

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106Compositions: Coating or Plastic,   subclass 35 for coatings or plastic compositions specialized for dental use.
424Drug, Bio-Affecting and Body Treating Compositions,   appropriate subclasses for treating compositions, per se, and methods involving no more than the application of a Class 424 composition.
  
[List of Patents for class 433 subclass 216]    216Cleaning:
 This subclass is indented under subclass 215.  Subject matter including a step or material for removing foreign matter from the surface of a tooth.

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25+,for apparatus for cleaning teeth.
80+,for apparatus which dispense a cleaning or rinsing material.
119,for ultrasonic cleaners.
125,for power operated abrading or polishing tools.
142,for hand manipulatable abrading or polishing tools.
143,for scalers.
166,for abrading or polishing tool bits.

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15Brushing, Scrubbing, and General Cleaning,   subclass 167.1 for tooth brushes.
  
[List of Patents for class 433 subclass 217.1]    217.1By lining or coating:
 This subclass is indented under subclass 215.  Subject matter relating to either (1) a device or material applied to a natural tooth to form an intermediate layer between the tooth and a filling, crown, etc., to be applied to the tooth, or (2) any treating or protective material that is applied to the teeth to form a film thereon.

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80,for apparatus for dispensing and applying coatings to the teeth.
228.1+,for a method which includes the step of applying a restorative composition or cement to fill a tooth or cover its face (bonding).

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106Compositions: Coating or Plastic,   subclass 35 for a protective coating composition, per se, adapted to be applied to a tooth to form a structural barrier thereon.
424Drug, Bio-Affecting and Body Treating Compositions,   appropriate subclasses for treating compositions applied to natural teeth.
  
[List of Patents for class 433 subclass 218]    218Crown:
 This subclass is indented under subclass 215.  Subject matter relating to a simulation of the exposed portion of a natural tooth adapted to be attached to and carried by the remainder of the natural tooth.
(1) Note. Crowns having artificial teeth fixed thereto which are not carried on portions of natural teeth are considered to be prosthodontic devices and are excluded from this subclass.

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1,for veterinary crown slitters.
40,for a device for taking an impression of a prepared tooth prior to forming a prosthetic crown to be fixed upon the tooth.
145,for hand manipulatable crown slitters.
202.1,for artificial tooth construction or composition.
  
[List of Patents for class 433 subclass 219]    219Attachment to natural tooth or adjacent crown:
 This subclass is indented under subclass 218.  Subject matter comprising a step or means for securing a prosthetic crown to a natural tooth or to a prosthesis carried on an adjacent natural tooth.

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183,for attachment of a crown to an abutment tooth wherein the crown serves as fastening means for an adjacent bridge.
  
[List of Patents for class 433 subclass 220]    220By post:
 This subclass is indented under subclass 219.  Subject matter wherein the crown is secured or positioned on the natural tooth by an elongated member extending vertically into both the crown and the natural tooth.

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211,for method or means for securing a connecting pin to an artificial tooth facing, the connecting pin adapted to be used to fasten the tooth to a backing or plate.
  
[List of Patents for class 433 subclass 221]    221Having surface grooves or ridges:
 This subclass is indented under subclass 220.  Subject matter wherein the periphery of the elongated member is formed with one or more elongated crests or flutes.
(1) Note. Threaded posts are included in this subclass.
  
[List of Patents for class 433 subclass 222.1]    222.1Composite:
 This subclass is indented under subclass 218.  Subject matter wherein the crown includes two distinct portions, each formed of a different material.

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198,for artificial teeth having a metallic occlusal surface.
208+,for artificial teeth having a metallic portion.
212.1,for a nonmetallic tooth composed of a plurality of distinct sections each formed of a different material.
  
[List of Patents for class 433 subclass 223]    223Method of fabricating:
 This subclass is indented under subclass 218.  Process including a step in the formation of the crown.
(1) Note. Methods for fabricating dental crowns are classified in Class 433 only if they include specific dental steps (e.g., taking an impression of the prepared tooth, fitting the crown on the tooth, etc.). Process claims reciting only manufacturing or forming steps should be classified in the appropriate manufacturing or treatment class.
  
[List of Patents for class 433 subclass 224]    224Endodontic:
 This subclass is indented under subclass 215.  Subject matter relating to treating the pulp of a natural tooth.

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75,for an endodontic broach having a penetration gauge.
81,for endodontic dispensers.
102,for broaches.
  
[List of Patents for class 433 subclass 225]    225Anchor pin:
 This subclass is indented under subclass 215.  Subject matter relating to the use of an elongated member which is fixed to a tooth at an area where the tooth is to be filled to secure the filling to the tooth.
  
[List of Patents for class 433 subclass 226]    226By filling, bonding or cementing:
 This subclass is indented under subclass 215.  Subject matter relating to repair of a tooth by either (a) applying and shaping material on the crown portion of a tooth, or (b) employing a hardenable fluent material to bond a dental restoration to a natural tooth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39,for a dental matrix.
83,for a combined plugger and filling material dispenser.
118+,for powered pluggers.
164,for hand manipulatable pluggers.
180+,for fixing a bridge or other prosthesis to an inlay or filling in the surface of a natural tooth.

SEE OR SEARCH CLASS:

106Compositions: Coating or Plastic,   appropriate subclasses for patents claiming a dental cement by composition.
  
[List of Patents for class 433 subclass 227]    227Foil:
 This subclass is indented under subclass 226.  Subject matter wherein the material applied to the tooth comprises one or more thin sheets of metal.
  
[List of Patents for class 433 subclass 228.1]    228.1Composition:
 This subclass is indented under subclass 226.  Subject matter relating to a specific material applied to the tooth.

SEE OR SEARCH CLASS:

106Compositions: Coating or Plastic,   subclass 35 for dental cements, per se, and see Prostheses Or Appliances in the main definition of Class 433 for the line.
420Alloys or Metallic Compositions,   subclasses 526+ for an amalgam, per se, and see Prostheses Or Appliances in the main definition for Class 433 for the line.
520Synthetic Resins or Natural Rubbers,   particularly Class 523, subclasses 116+ for a composition containing a synthetic resin used as a cement or filling or to processes of preparing said composition. (See Prostheses Or Appliances in the main definition of Class 433.)
  
[List of Patents for class 433 subclass 229]    229MISCELLANEOUS:
 This subclass is indented under the class definition.  Subject matter which is not provided for under any of the preceding subclass.
  

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