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 [Search a list of Patent Appplications for class 285]   CLASS 285,PIPE JOINTS OR COUPLINGS
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SECTION I - CLASS DEFINITION

Joints between two or more members, such members comprising fluid, wire or cable conducting pipes, tubes or tubular bodies with or without rod-like bodies in end-to-end or side-to-side relation or between such a member and a plate, wall, receptacle or other base.

SECTION II - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

4Baths, Closets, Sinks, and Spittoons,   subclasses 252.1+ for a closet bowl coupling and subclass 696 for a fitting or manifold for a sink or bath.
5Beds,   subclasses 279+ , especially subclass 282 for joints and connections, and subclasses 288+ for corner fasteners.
24Buckles, Buttons, Clasps,   etc., appropriate subclasses, especially subclasses 588+ for head and socket separable fasteners.
29Metal Working,   subclasses 890.14+ for methods of making gas and water fittings.
48Gas: Heating and Illuminating,   subclasses 190 through 194for analogous structure in pressure regulators, safety devices and leak preventers specialized to that art.
52Static Structures (e.g., Buildings),   subclasses 58+ for an exterior type flashing, e.g., sealing around a chimney, subclass 95 for a conduit or passage means at a roof end structure, subclass 219 for a flue connection with a building structure, and subclasses 220.1+ for a service duct, e.g., an electrical conduit within a barrier structure.
55Gas Separation,   subclasses 495+ for separating media positioned in a flow line.
72Metal Deforming,   appropriate subclasses, for a method of or means for making a metal article by plastically working a blank, e.g., forging or bending it.
73Measuring and Testing,   subclass 201 , for joints or couplings combined with fluid meter box structure. (More than a conventional statement).
105Railway Rolling Stock,   subclass 40 for a flexible joint between boiler sections in a steam locomotive and subclass 47 for an articulate or flexible pipe connection between relatively movable parts of a steam locomotive.
119Animal Husbandry,   subclasses 14.01+ for manifolds, couplings and claws providing means to connect teat cups with pressure and/or milk lines.
122Liquid Heaters and Vaporizers,   subclass 87 , for fire tube "U" couplings, 360+, for special water tube closures and couplings, 365 and 511, for specialized tubes and connectors.
126Stoves and Furnaces,   subclasses 307 and 312 for connections between stovepipes and stoves.
131Tobacco,   subclass 225 for joints in tobacco smoking appliances.
137Fluid Handling,   for fluid handling apparatus including coupling and pipe joints in combination with other fluid handling means, see particularly subclasses 231 , 355.16+, 580, 614+, and 637.05.
156Adhesive Bonding and Miscellaneous Chemical Manufacture,   appropriate subclass for process of making a joint by a laminating operation.
165Heat Exchange,   subclasses 173+ for side by side heat exchange tubes connected to a header plate, and subclass 178 for a heat exchange tube with a support or flow connector.
166Wells,   subclasses 75.11+ for well heads with some fluid handling or other feature special to wells, especially subclasses 86.1+ for a well head with a sealed or anchored inner member and a valve and subclasses 88.1+ for a well head with a sealed or anchored inner member and a lateral port, subclasses 179+ and the subclasses there noted for packers situated below ground level and sealing the annular space between a prepositioned well conduit and a pipe inserted into the conduit, subclasses 206+ for expanding anchor means situated below ground level holding an inner pipe to a prepositioned well conduit.
174Electricity: Conductors and Insulators,   particularly subclasses 17 through 20, 50+, 66, 67, and 71-94 for pipe joints and couplings limited to electrical use.
210Liquid Purification or Separation,   subclasses 435+ for a filter element positioned in a flow line or a flow line connected casing and subclasses 459+ for a filter element mounted on a pipe.
213Railway Draft Appliances,   subclass 76 for combined car and air train line couplings. See the Notes thereunder.
220Receptacles,   subclasses 3.2+ , 241 and 242 for receptacles and face plates having means for coupling pipes thereto.
228Metal Fusion Bonding,   subclasses 122.1+ for a method of bonding a nonmetal to a metal using separate metallic filler and subclass 120 for a method of mechanical joining and bonding a nonmetal to a metal.
239Fluid Sprinkling, Spraying, and Diffusing,   subclasses 195+ , 225+ and 587.1+ for combined sprayer devices and couplings and for couplings specially designed for rotating or adjusting the sprayer on the flow line.
241Solid Material Comminution of Disintegration,   subclasses 46.013+ , especially subclass 46.015, for the combination of a sink joint, per se, classifiable in this class (285), and a comminuting means.
248Supports,   subclass 188 for leg attaching connections for stands.
251Valves and Valve Actuation,   subclass 89.5 , 148+, 149+, and 149.9 for fluid handling apparatus including a flow path comprising a coupling having a valve therein.
256Fences,   subclasses 47+ for fence wire to post connections, and subclasses 65.01+ for fence rail to post connections.
264Plastic and Nonmetallic Article Shaping or Treating: Processes,   appropriate subclasses, for processes within the class definition for molding or shaping plastic materials.
277Seal for a Joint or Juncture,   for a seal between two pipes or a pipe and a wall that are at most secured together only by friction between the seal and the pipe or wall, subclasses 602+ for a static contact seal intended for use on a pipe, conduit, or cable.
279Chucks or Sockets,   subclasses 9.1+ for a connection between a holder and tool or work-piece having the gripping means or seat on or within the holder. See the Search Notes thereunder.
333Wave Transmission Lines and Networks,   subclasses 248+ for wave guide joints or couplings, which claim significant wave propagation characteristics, and subclasses 109+ for such joints or couplings providing a branched circuit.
403Joints and Connections,   for joints or connection in general.
408Cutting by Use of Rotating Axially Moving Tool,   for the combination of a pipe joint or coupling with means to drill in the manner of that class.
439Electrical Connectors,   appropriate subclasses for electrical connectors and see Lines With Other Classes and Within This Class in the Class Definition of that class (439) for the line between Class 439 and the other classes where joints or couplings can be found.

SUBCLASSES

[List of Patents for class 285 subclass 1]    1SAFETY RELEASE:
 This subclass is indented under the class definition.  Subject matter including means responsive to a predetermined force to release the means holding the joint together to prevent injury to the parts.

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33+,for a coupling with means to effect a quick release in addition to a normal release.
304,for a "breakaway" type coupling comprising a friction detent.

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137Fluid Handling,   subclasses 67+ for a destructible or deformable element control of fluid handling means. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 2]    2With frangible or deformable element:
 This subclass is indented under subclass 1.  Devices which include a frangible or deformable element; e.g., a shear pin or bolt.

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3,for a frangible element essential to the making or disassembly of the joint.

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137Fluid Handling,   subclasses 59+ for freeze condition responsive safety means in fluid handling means.
  
[List of Patents for class 285 subclass 3]    3FRANGIBLE ELEMENT:
 This subclass is indented under the class definition.  Subject matter which includes a frangible element that is cut or broken prior to assembly or disassembly of the joint.

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2,for a coupling with a safety release including a frangible element.

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137Fluid Handling,   subclasses 67+ for flow control means responsive to frangible means, and subclass 797 for a frangible element in a flow control means.
220Receptacles,   subclass 265 for a frangible closure in a metallic receptacle.
222Dispensing,   subclasses 541.1+ for dispensers with frangible outlet elements.
  
[List of Patents for class 285 subclass 4]    4Score line or groove:
 This subclass is indented under subclass 3.  Subject matter including score lines or grooves whereby the size or angle of a piece may be varied prior to assembly by cutting or breaking along the line or groove.
  
[List of Patents for class 285 subclass 5]    5IRRIGATION TYPE (GUIDE AND SUPPORT):
 This subclass is indented under the class definition.  Devices particular to irrigation pipe lines and generally including guide means to facilitate the coupling operation and/or support means for supporting the coupling and the pipe above ground level. The support may be a static support or a transporting means such as a sled or wheel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61+,for the combination of a support and a coupling.
  
[List of Patents for class 285 subclass 6]    6Released by conduit motion:
 This subclass is indented under subclass 5.  Subject matter including means wherein a latch can be released by manipulation of the pipe, e.g., by relative rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

307,for essential catches manipulated by conduit motion.
  
[List of Patents for class 285 subclass 7]    7VACUUM CLEANER TYPE:
 This subclass is indented under the class definition.  Subject matter peculiar to couplings in household vacuum cleaners; e.g., between the blower or intake pipe and the dirt receptacle, etc.

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15Brushing, Scrubbing, and General Cleaning,   subclasses 300.1+ for vacuum cleaner combinations.
  
[List of Patents for class 285 subclass 8]    8FAUCET TYPE (E.G., SLIP-ON):
 This subclass is indented under the class definition.  Devices comprising a readily detachable coupling member generally of the socket type with means to engage the spigot end of a faucet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243,and 322+, for contractible sockets.
374+,for packed sockets.
399+,for socket joints.
  
[List of Patents for class 285 subclass 9.1]    9.1WITH MAGNETIC ELEMENT:
 This subclass is indented under the class definition.  Subject matter wherein two or more members are in coupled relation and wherein there is provided a component having magnetic properties configured to aid in holding the members together.
  
[List of Patents for class 285 subclass 9.2]    9.2CONTACT ONLY:
 This subclass is indented under the class definition.  Subject matter wherein two or more members are held in a coupled relation solely by physical contact of portions of the members in the absence of either separate coupling means or of specific coupling structure of the members.

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141Fluent Material Handling, With Receiver or Receiver Coacting Means,   subclasses 383+ for the combination of a receiver, dispenser and joint therebetween.
251Valves and Valve Actuation,   subclass 149.7 for a valve flow line section joined to another by a contact only, or friction, joint, where the act of joining operates the valve in opposition to a spring biasing it.
  
[List of Patents for class 285 subclass 10]    10LIQUID SEAL:
 This subclass is indented under the class definition.  Devices wherein a liquid seals a joint to prevent escape of the line flow to the exterior of the flow path.

SEE OR SEARCH THIS CLASS, SUBCLASS:

94,for couplings with lubricating means.
95+,for couplings wherein a seal is enhanced by the line pressure.
284.1+,for molded joints.

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137Fluid Handling,   subclasses 246+ for liquid sealing at a valve interface; subclass 247 for liquid trap seals, and see the Search Notes thereunder.
  
[List of Patents for class 285 subclass 11]    11With relative motion:
 This subclass is indented under subclass 10.  Subject matter wherein the sealing is between juxtaposed surfaces which are relatively movable.
  
[List of Patents for class 285 subclass 12]    12CONVERTIBLE:
 This subclass is indented under the class definition.  Devices comprising means whereby the type of joint can be changed by reassembling all or some of its parts in a different relationship or by the addition of a part or parts.
  
[List of Patents for class 285 subclass 13]    13WITH LEAKAGE OR DRIP DISPOSAL:
 This subclass is indented under the class definition.  Subject matter in which means are provided to catch or otherwise dispose of material dripping or leaking from the joint. By drip or leakage is meant material which escapes to the exterior of the normal flow path and also includes condensate and water derived from melting ice or frost.

SEE OR SEARCH CLASS:

137Fluid Handling,   subclasses 312+ for leak or drip disposal means in fluid handling devices.
222Dispensing,   subclasses 108+ for drip, leakage or waste catching or disposal in dispensers.
277Seal for a Joint or Juncture,   for a seal between two pipes or a pipe and a wall that are at most secured together only by friction between the seal and the pipe or wall, subclass 429 for a dynamic close proximity impeller-type seal having a fluid collector or receiver.
  
[List of Patents for class 285 subclass 14]    14Weep holes:
 This subclass is indented under subclass 13.  Subject matter wherein one element of the coupling is provided with holes or channels to aid in the disposal.

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210Liquid Purification or Separation,   subclass 165 for a grated inlet surface drain with weep means.
  
[List of Patents for class 285 subclass 15]    15REPAIR:
 This subclass is indented under the class definition.  Devices in which the device, or parts of the device, are equipped with means to restore, or aid in restoring the device to its former condition after decay, injury or partial destruction.

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31+,for coupling means insertable between two fixed pipe ends.
148.6+,for compound joints, which include an external packing and compressor therefor.
337,for external packing means, generally disclosed to stop leakage around an existing joint.

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137Fluid Handling,   subclass 15.09 for a process of cleaning, repairing, or assembling by securing, replacing, or servicing a particular pipe joint, subclasses 242-245.5 with a mechanical cleaning or sterilizing means, or subclasses 315.01-329.4 with repair, tapping, or assembly means.
138Pipes and Tubular Conduits,   subclasses 97+ for pipe repair devices, especially subclass 99 for external patches with means for stopping leaks in a pipe or joint but which are not structurally related to the joint.
  
[List of Patents for class 285 subclass 16]    16Removable wear element:
 This subclass is indented under subclass 15.  Subject matter including means whereby a coupling part (e.g., a part of the fitting wall or part of a lining) can be readily replaced when worn, etc.

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45+,for coupling housings or linings to control heat exchange or to protect the coupling.
  
[List of Patents for class 285 subclass 17]    17Alternate wear parts:
 This subclass is indented under subclass 16.  Subject matter including provision of alternate wear parts.
  
[List of Patents for class 285 subclass 18]    18WITH ASSEMBLY MEANS OR FEATURE:
 This subclass is indented under the class definition.  Devices with auxiliary means to aid in the assembly or disassembly (other than mere conventional wrench engaging portions) or having a particular relationship of parts solely to facilitate the assembly or disassembly in extremely difficult or impossible places (e.g., inserted section between fixed ends).

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16+,for means to aid in the replacing of wear element.
123.3+,for packed joints with external separable clamps.
148.6+,for compound joints including separable clamps for encircling an existing jointed pipe.
391,for segmental threads to permit coupling of screw means by partial rotation.

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137Fluid Handling,   subclass 15.09 for a process of cleaning, repairing, or assembling by securing, replacing, or servicing a particular pipe joint.
  
[List of Patents for class 285 subclass 19]    19Spaced plates:
 This subclass is indented under subclass 18.  Subject matter comprising plural distinct joints, a tubular member and two or more fixed spaced plates with a combination relationship therebetween whereby the tubular member may be coupled to the plates (e.g., a flue between boiler plates).

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31+,for means to insert a section between fixed pipe ends.
154.1+,for pipe to box couplings wherein at least two walls are essential to one joint.
  
[List of Patents for class 285 subclass 20]    20Penetrating:
 This subclass is indented under subclass 19.  Subject matter wherein the tubular member extends entirely through at least one of the plates with addition joint means on its free end (e.g., waste pipe and overflow connections).
  
[List of Patents for class 285 subclass 21.1]    21.1Molded joint facilitator:
 This subclass is indented under subclass 18.  Subject matter which is particularly required for either the assembly or the disassembly of the joint elements; e.g., a pouring shroud or a means to cause fusion between joint elements.

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284+,for molded joints in general and also see the associated search notes.
  
[List of Patents for class 285 subclass 21.2]    21.2Having embedded facilitator:
 This subclass is indented under subclass 21.1.  Subject matter wherein a means is encased within at least one joint element to perfect the joint; e.g., a heating element inside at least one joint element which is capable of causing fusion between the joint elements.

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156Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclass 273.9 , 274.2, and 379.7 for application of electrical energy to fuse joints.
219Electric Heating,   subclass 535 and 544 for heating devices which are used to fuse plastic elements.
  
[List of Patents for class 285 subclass 21.3]    21.3Having solvent facilitator:
 This subclass is indented under subclass 21.1.  Subject matter in which a fluid is used to dissolve portions of adjoining joint element surfaces to cause a chemical fusion bond therebetween.

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156Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclass 305 and 308.2 for methods of solvent bonding.
  
[List of Patents for class 285 subclass 22]    22Spacing means (e.g., lugs):
 This subclass is indented under subclass 21.  Subject matter comprising spacing means to position the pipe ends properly for the joining operation.

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27+,for means to guide the ends into coupling relation and see the Search Notes thereunder.
  
[List of Patents for class 285 subclass 23]    23With holding means functioning only during transportation assembly or disassembly:
 This subclass is indented under subclass 18.  Subject matter having combined with a part of the device a holding means which is inoperative in the assembled operating device for (1) supporting the device during assembly or disassembly, or (2) for immobilizing a moving part, to permit transportation or safe storage.

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22,for a spacer in a molded joint.
27+,for guide means to align the parts during assembly or coupling and see the Search Notes thereunder.
182,for elbows with knock-down nesting features.

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137Fluid Handling,   subclass 316 for similar means in fluid handling apparatus and see the Search Notes thereunder.
  
[List of Patents for class 285 subclass 24]    24Guide and support:
 This subclass is indented under subclass 18.  Subject matter including means to gather and align cooperating portions of a coupling to register the coupling interfaces and supporting means to maintain the cooperating coupling portions in substantial mating position.

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5+,for irrigation type couplings many of which include a guide and support.
  
[List of Patents for class 285 subclass 25]    25Plural noncommunicating (e.g., train pipe type):
 This subclass is indented under subclass 24.  Subject matter involving couplings for two or more lines which do not unite within the scope of the combination of elements claimed.

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28+,for a coupling plus a guide.
63,for a coupling plus a support.
120.1+,for plural noncommunicating lines which do not claim the guide and support.

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213Railway Draft Appliances,   subclass 76 for combined car and air train line couplings.
  
[List of Patents for class 285 subclass 26]    26With latch or lock:
 This subclass is indented under subclass 25.  Subject matter including means to restrain the separation of the coupling elements (e.g., a latch or lock means).

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29,for the combination of a latch or lock, a guide and coupling means.
80,for the combination limited to a lock and coupling means.
81+,for an auxiliary latch and coupling means.
  
[List of Patents for class 285 subclass 27]    27Guide:
 This subclass is indented under subclass 18.  Subject matter comprising guide means to gather and align the members into coupling position.

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5,for irrigation couplings which include guide means.
330,for an interlocked or lapped interface.
332+,for a conically tapered interface.
347,for a cylindrical shank which may align the pipe ends.
  
[List of Patents for class 285 subclass 28]    28Plural noncommunicating:
 This subclass is indented under subclass 27.  Subject matter including coupling means for two or more lines, which do not unite within the scope of the combination of elements claimed.

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25,for this subcombination plus a support.
120.1,for a mere coupling for plural noncommunicating flow paths.
  
[List of Patents for class 285 subclass 29]    29With latch or lock:
 This subclass is indented under subclass 28.  Subject matter including means to restrain the separation of the coupling elements (e.g., a latch or lock means).

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26,for this combination plus a support.
80,for the combination of a lock and coupling means.
81+,for means blocking the release of the joint holding means.
  
[List of Patents for class 285 subclass 30]    30Combined inlet and outlet:
 This subclass is indented under subclass 18.  Devices having spacing means for supporting coupling parts of two distinct pipes in mating position with respect to the mating coupling parts of the inlet and outlet of a receptacle (e.g., water meter case) or of fixed pipe ends.

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120.1+,for pipe connections providing plural noncommunicating paths.

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73Measuring and Testing,   subclass 201 for connections between combined volume and rate of flow meters.
  
[List of Patents for class 285 subclass 31]    31Inserted section:
 This subclass is indented under subclass 18.  Subject matter wherein means are provided for the lateral insertion of a section between the ends of two fixed pipes to complete the line.
  
[List of Patents for class 285 subclass 32]    32Threaded telescopic:
 This subclass is indented under subclass 31.  Subject matter including telescopic portions which have screw threads therebetween for effecting the adjustment of the length of the insertable section.

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145.1+,for a telescopic joint in combination with a diverse type joint which permits motion between the coupled parts.
298+,for mere telescopic joints.

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403Joints and Connections,   appropriate subclasses for an articulated threaded connection in general, and especially subclass 296 for a threaded inserted section in general.
  
[List of Patents for class 285 subclass 33]    33Quick release:
 This subclass is indented under subclass 18.  Devices comprising primary means for holding a joint together and means for readily releasing the holding means whereby the joint may be disassembled by two modes of operation.

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1+,for a coupling with a safety release.
304,for a breakaway type coupling including a friction-type detent.
345+,for a coupling with a frictionally retained spigot.
  
[List of Patents for class 285 subclass 34]    34Radially moved segmented threads (e.g., chuck type):
 This subclass is indented under subclass 33.  Subject matter comprising segmental threads mounted to be radially moved out of grasping relationship.

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322,for a contractible socket. See the Search Notes thereunder.
391,for a screw coupling with interrupted threads.

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89Ordnance,   subclasses 20.2+ for interrupted threads on breech closures.
109Safes, Bank Protection, or a Related Device,   subclass 72 for other interrupted threads on wall and panel closures.
411Expanded, Threaded, Driven,   Headed Tool-Deformed or Locked-Threaded Fastener subclasses 417+ for screws and bolts provided with circumferentially interrupted threads.
  
[List of Patents for class 285 subclass 35]    35Pivoted segments:
 This subclass is indented under subclass 34.  Subject matter wherein the segmental threads are pivotally mounted on the female member.
  
[List of Patents for class 285 subclass 36]    36Attached thread-jamming preventer:
 This subclass is indented under subclass 18.  Devices comprising an attached stop means which limits the endwise motion of the members to prevent the jamming of the threads.

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333+,355+ and 390+, for integral stop shoulders in screw joints.
  
[List of Patents for class 285 subclass 37]    37With winder for packing or clamp:
 This subclass is indented under subclass 18.  Subject matter including means for facilitating the winding of a packing in the coupling or a wrapped type holder.

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254,for nonmetal to metal joints having an external holder comprising a wrapped band.
  
[List of Patents for class 285 subclass 38]    38Handle or handwheel for rotary engagement:
 This subclass is indented under subclass 18.  Subject matter comprising extraneous means to aid in the connection of a coupling or hand wheel means to assist in the rotation of a part thereof in the making or disassembly of the joint.

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39,for a coupling with a particular tool engaging means or combined with a tool.
308+,for a coupling with an essential catch having means to operate the catch.
  
[List of Patents for class 285 subclass 39]    39Particular tool-engaging means or with tool:
 This subclass is indented under subclass 18.  Subject matter comprising tool engaging means having a particular arrangement with respect to the joint elements or a joint having specific tool engaging means in combination with the tool.

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38,for a coupling having a hand wheel for rotary engagement.

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81Tools,   subclasses 53+ for a wrench, per se.
  
[List of Patents for class 285 subclass 40]    40Thread-cutting means:
 This subclass is indented under subclass 18.  Subject matter including means to form a thread upon assembly of one member into another by relative longitudinal movement.
  
[List of Patents for class 285 subclass 41]    41WITH HEATING OR COOLING:
 This subclass is indented under the class definition.  Subject matter combined with means for heating or cooling the joint or a part thereof.

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187,for a temperature responsive coupling.

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137Fluid Handling,   subclasses 334+ for a heating or cooling means combined with fluid handling means. See the Search Notes thereunder.
138Pipes and Tubular Conduits,   subclass 32 for means to protect a pipe during thawing and freezing.
  
[List of Patents for class 285 subclass 42]    42ROOF OR FLOOR DRAIN FLASHING TYPE:
 This subclass is indented under the class definition.  Subject matter comprising a shield generally including a sheet of ductile material shaped to turn water at the junction of a pipe (e.g. vent stack) with a roof or floor surface.

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52Static Structures (e.g., Buildings),   subclasses 58+ for an exterior type, e.g., chimney, flashing including building structure.
210Liquid Purification or Separation,   subclasses 163+ for a grated inlet surface drain which may have a flashed joint.
  
[List of Patents for class 285 subclass 43]    43Angled:
 This subclass is indented under subclass 42.  Subject matter wherein the roof is at an angle to the horizontal.
  
[List of Patents for class 285 subclass 44]    44Adjustable pitch:
 This subclass is indented under subclass 43.  Subject matter including means to compensate for variations in the pitch of roofs.

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184,for couplings permitting angular adjustment between connected sections.
  
[List of Patents for class 285 subclass 45]    45WITH CASING, LINING OR PROTECTOR:
 This subclass is indented under the class definition.  Devices in which the joint is completely or partially surrounded by a housing to control heat exchange or to act as a protective or ornamental cover, or is provided with a protective liner, or electrical insulation means.

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114+,for strain relief combinations.
123.1+,for a coupling for concentric plural noncommunicating pipes.
123.3+,for inner to spaced outer tube coupling.
222.1+,for sheathed flexible pipe involving more than one distinct connection.
287.1,for means for preventing the entrance of roots to a joint.

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138Pipes and Tubular Conduits,   subclasses 100 through 178for appropriate pipe structure, per se.
156Adhesive Bonding and Miscellaneous Chemical Manufacture,   appropriate subclass for methods of making electrical insulation by a laminating operation.
428Stock Material or Miscellaneous Articles,   appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet, and especially subclass 920 (a cross-reference art collection) for a product having a heating insulating feature.
  
[List of Patents for class 285 subclass 46]    46Escutcheon type:
 This subclass is indented under subclass 45.  Subject matter in which the joint includes a member which surrounds a pipe or pipes and covers the opening through which the pipe passes through a wall, generally for ornamental appearance and supporting or centering the coupling in an opening.

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61+,for the combination of a support and coupling and see the Search Notes thereunder.
189+,for pipe to plate joints, especially subclass 193 wherein a portion of a fixture (e.g. a faucet) passes through a wall.

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137Fluid Handling,   subclass 359 for escutcheon type supports in fluid handling systems and see the Search Notes thereunder.
  
[List of Patents for class 285 subclass 47]    47Insulated:
 This subclass is indented under subclass 45.  Subject matter wherein means are provided to insulate one part of a joint from another part or from a third member.

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174Electricity: Conductors and Insulators,   particularly subclasses 17+ , 19+, 21+, 64, 65, and 71-94 for conduit and cable joints with structure having an electrical function only.
  
[List of Patents for class 285 subclass 48]    48Between serially connected parts:
 This subclass is indented under subclass 47.  Subject matter comprising serially connected parts having insulation to prevent heat or vibration transfer, or the flow of electricity therebetween.

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174Electricity: Conductors and Insulators,   particularly subclasses 17 through 22, 64, 71-94, and 668 for conduit and cable joints having claimed electrical characteristics.
  
[List of Patents for class 285 subclass 49]    49Intermediate resilient conduit (noise-dampener):
 This subclass is indented under subclass 48.  Subject matter including a conduit, generally a resilient member, between pipe ends to prevent transmitting noise and vibration from one pipe to another.

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148.13+,for serial diverse couplings comprising diverse materials, one of which is nonmetal. See the Search Notes thereunder.

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181Acoustics,   subclasses 212+ for mufflers and sound filters.
248Supports,   subclasses 560+ for resilient supports.
  
[List of Patents for class 285 subclass 50]    50By intermediate joint:
 This subclass is indented under subclass 48.  Subject matter wherein the insulation or a portion thereof is within a joint intermediate the joints for connection to means external of the coupling.

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144.1+,for serial relative movable joints.
148.1+,for serial diverse joints in a single flow path or line.
  
[List of Patents for class 285 subclass 51]    51Ball and socket:
 This subclass is indented under subclass 50.  Subject matter wherein the intermediate joint comprises a ball and socket joint.

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261,for a ball and socket joint. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 52]    52Screw thimble:
 This subclass is indented under subclass 50.  Subject matter wherein the intermediate joint comprises a flanged nut or internally threaded thimble with an inwardly extending flange or its equivalent.

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354,for a packed screw thimble joint.
  
[List of Patents for class 285 subclass 53]    53Sleeve:
 This subclass is indented under subclass 48.  Subject matter comprising a sleeve joint.

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369+,for a packed sleeve.
  
[List of Patents for class 285 subclass 54]    54Socket:
 This subclass is indented under subclass 48.  Subject matter comprising a socket-type joint.

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231+,for a flexible joint having a socketed packing.
374+,for a packed socket joint.
  
[List of Patents for class 285 subclass 55]    55Lined:
 This subclass is indented under subclass 45.  Subject matter comprising a protective cover or layer which may be inside the coupling or outside it.

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47+,for insulated couplings.
222.1+,for a coupling for a plural layer pipe, which provide distinct connections for two or more layers.

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137Fluid Handling,   subclass 375 for similar structure combined with flow control means.
138Pipes and Tubular Conduits,   subclasses 124+ for lined or covered flexible fabric pipe; subclass 131 for flexible pipe having a spirally wound liner; subclasses 137+ for other lined or covered flexible pipe; and subclasses 140+ for other lined or covered pipe.
156Adhesive Bonding and Miscellaneous Chemical Manufacture,   appropriate subclasses for methods of making heat insulating covers.
220Receptacles,   subclass 23.9 , 62.21, 495.01+, 574.3, and 908.1+ for receptacle linings.
  
[List of Patents for class 285 subclass 56]    56WATER CLOSET TYPE, FLOOR-SUPPORTED:
 This subclass is indented under the class definition.  Subject matter including means to support (e.g., a flange) the toilet on a floor in combination with joint means between the toilet and soil pipe.

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61+,for couplings in combination with supports.
136.1+,for a pipe or rod to pipe to plate joint system.
189+,for pipe to plate joints, especially subclasses 192+ for scant type.

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4Baths, Closets, Sinks, and Spittoons,   subclasses 252.1+ for floor support and connection means between a flush closet and a soil pipe, and subclass 211 for a closet ventilation fitting limited to that use.
  
[List of Patents for class 285 subclass 57]    57Flexible diaphragm or bellows:
 This subclass is indented under subclass 56.  Subject matter including a flexible diaphragm or bellows in the joint means.

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223+,for a flexible joint between rigid members, especially subclass 225 for a diaphragm, and subclass 226 for a bellows.
  
[List of Patents for class 285 subclass 58]    58Intermediate coupling:
 This subclass is indented under subclass 56.  Subject matter including an intermediate member between the soil pipe and the toilet requiring a separate joint between each.

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148.1+,for a joint system of serial diverse joints.
  
[List of Patents for class 285 subclass 59]    59Tapered spigot:
 This subclass is indented under subclass 58.  Subject matter wherein the toilet includes a tapered spigot outlet to the soil pipe.
  
[List of Patents for class 285 subclass 60]    60Tapered spigot:
 This subclass is indented under subclass 56.  Subject matter wherein the toilet includes a tapered spigot outlet to the pipe.

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59,for tapered spigot outlets to an intermediate coupling.
  
[List of Patents for class 285 subclass 61]    61WITH SUPPORT:
 This subclass is indented under the class definition.  Devices combined with means for supporting a joint relative to means external of the device.

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5+,for an irrigation type coupling.
24+,for the combination of a guide and support with a coupling.
42+,for a roof or floor drain flashing type coupling.
46+,for an escutcheon type cover which may also support.
56+,for a floor supported water-closet coupling.

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52Static Structures (e.g., Buildings),   subclass 110 for antennas and subclass 146 for guyed masts.
137Fluid Handling,   subclasses 343+ for a fluid handling and support combination.
239Fluid Sprinkling, Spraying, and Diffusing,   subclass 112 for the combination of a coupling, support and nozzle.
248Supports,   subclasses 38+ for a staff support and subclasses 49+ for a pipe or cable support.
  
[List of Patents for class 285 subclass 62]    62Vehicle:
 This subclass is indented under subclass 61.  Subject matter in which the support is a vehicle, e.g., automobile, wagon, railroad car, etc.

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137Fluid Handling,   subclasses 899+ for this combination combined with flow controllers. See the Search Notes thereunder.
280Land Vehicles,   subclass 421 for a draft connection between vehicles combined with a service connection to conduct power fluid therebetween.
  
[List of Patents for class 285 subclass 63]    63Railway:
 This subclass is indented under subclass 62.  Subject matter in which the vehicle is a railroad car or locomotive or a part thereof.

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24+,for the combination of a support, guide and coupling.

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137Fluid Handling,   subclasses 345+ and 347+ for this combination combined with valve means. See the Search Notes thereunder.
248Supports,   subclass 53 , for the support, per se.
  
[List of Patents for class 285 subclass 64]    64Static building construction:
 This subclass is indented under subclass 61.  Subject matter in which the support is a structural member of a building immovably joined to the ground.
  
[List of Patents for class 285 subclass 65]    65IDENTICAL HALVES (E.G., TRAIN LINE TYPE):
 This subclass is indented under the class definition.  Subject matter in which the members have identical meeting ends and detent means to have identical ends and detent means, which coact with an intermediate means to complete the joint, e.g., railway car hose couplings.

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24+,for similar couplings in combination with a support and guide.
27+,for similar couplings in combination with a guide means.
62+,for similar couplings in combination with supports.

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137Fluid Handling,   subclass 599.02 for systems dividing into parallel flow lines then recombining having a valved flow line coupling actuated by joining or parting (e.g., quick disconnect hose, etc.).
  
[List of Patents for class 285 subclass 66]    66With intermediate sleeve:
 This subclass is indented under subclass 65.  Subject matter comprising an intermediate between identical ends.

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369+,for a packed sleeve joint. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 67]    67Side slide:
 This subclass is indented under subclass 65.  Subject matter including lapping portions which limit the coupling motion to a radial direction.

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103,for side slide couplings with a line pressure responsive seal.
325+,for other side slide couplings.
  
[List of Patents for class 285 subclass 68]    68Transverse port:
 This subclass is indented under subclass 65.  Subject matter in which the members have ports which are at right angles to the line flow.
  
[List of Patents for class 285 subclass 69]    69Auxiliary detent:
 This subclass is indented under subclass 68.  Subject matter including supplemental detent means (e.g., latch) to hold the parts in coupled position.

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81+,for auxiliary latches in combination with other types of couplings to positively hold the coupling in coupled relationship.
305+,for detents which are essential to the making of the joint.
  
[List of Patents for class 285 subclass 70]    70Longitudinal port:
 This subclass is indented under subclass 65.  Subject matter in which the members have ports which are longitudinal with respect to the flow path.
  
[List of Patents for class 285 subclass 71]    71Pivoted hook or loop:
 This subclass is indented under subclass 70.  Subject matter provided with a pivoted hook or loop for joining and locking the joint.
  
[List of Patents for class 285 subclass 72]    72Auxiliary detent:
 This subclass is indented under subclass 71.  Subject matter including supplemental detent means (e.g., latch) to hold the parts in coupled position.

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81+,for auxiliary latches in combination with other types of couplings.
305+,for detents which are essential to the making of the joint.
  
[List of Patents for class 285 subclass 73]    73Integral hook:
 This subclass is indented under subclass 70.  Subject matter including means for holding the members in coupled relationship comprising an integral hook.
  
[List of Patents for class 285 subclass 74]    74Oscillating engagement:
 This subclass is indented under subclass 73.  Subject matter wherein hooks on one side of the port are so related that they are engaged by a rocking or oscillating movement about a transverse axis with respect to the port axis.
  
[List of Patents for class 285 subclass 75]    75Reciprocating conduit:
 This subclass is indented under subclass 74.  Subject matter wherein the member reciprocates with respect to a coupling head and includes means to force the member toward coupling position.
  
[List of Patents for class 285 subclass 76]    76Auxiliary detent:
 This subclass is indented under subclass 74.  Subject matter including supplemental means to hold the parts in coupled position.

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81+,for auxiliary latches in combination with other types of coupling.
305+,for detents which are essential to the making of the joint.
  
[List of Patents for class 285 subclass 77]    77Reciprocating:
 This subclass is indented under subclass 76.  Subject matter wherein the detent reciprocates to and from locking position.
  
[List of Patents for class 285 subclass 78]    78Key or wedge:
 This subclass is indented under subclass 77.  Subject matter wherein the detent is a key or wedge means.
  
[List of Patents for class 285 subclass 79]    79Auxiliary detent:
 This subclass is indented under subclass 73.  Subject matter including supplemental means to hold the parts in coupled position.

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76+,for auxiliary latches in similar couplings limited to oscillating engagement.
81+,for auxiliary latches in combination with other types of couplings.
305+,for detents which are essential to the making of the joint.
  
[List of Patents for class 285 subclass 80]    80WITH LOCK OR SEAL:
 This subclass is indented under the class definition.  Subject matter combined with lock means for preventing unauthorized opening of a joint or seal means for indicating tampering with the joint.

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81+,for a means to block the disassembly of a joint (e.g., auxiliary latch, lock nut, etc.). See the Search Notes thereunder.
305+,for catches essential to the making of a joint.

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137Fluid Handling,   subclasses 383+ for locks or seals in combination with fluid handling means and see the Search Notes thereunder.
  
[List of Patents for class 285 subclass 81]    81WITH MEANS BLOCKING RELEASE OF HOLDING MEANS:
 This subclass is indented under the class definition.  Subject matter comprising perfecting means to restrain or retain the means holding the parts together, the holding means being restrained against motion that would uncouple the joint.

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65+,for auxiliary detents in train line couplers.
80,for joints locked or sealed against unauthorized use.
305+,for a coupling comprising an essential catch.
403+,for separable fasteners essential to a socket joint.

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137Fluid Handling,   subclass 614.06 and 637.05 for valved, separable flow path sections wherein the valves or their actuators may serve to block release of the means which joins the sections.
251Valves and Valve Actuation,   subclasses 89+ for means to block or disable a valve actuator and see the Search Notes thereunder, and subclass 149.9 for a valved pipe joint or coupling wherein the valve or its actuator blocks release of the means which makes the joint.
  
[List of Patents for class 285 subclass 82]    82Auxiliary latch:
 This subclass is indented under subclass 81.  Subject matter comprising an auxiliary latch.

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305+,for a latch or catch essential to the holding of the joint parts together.
  
[List of Patents for class 285 subclass 83]    83Line pressure-responsive:
 This subclass is indented under subclass 82.  Subject matter responsive to the line pressure.

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102,for a line pressure responsive catch combined with a fluid pressure seal.
105,for a packing actuated pipe gripping means wherein the packing is responsive to line pressure.
306,for a line pressure responsive catch essential to the joint.
  
[List of Patents for class 285 subclass 84]    84Reciprocating:
 This subclass is indented under subclass 82.  Subject matter wherein the latch reciprocates.
  
[List of Patents for class 285 subclass 85]    85With manipulator:
 This subclass is indented under subclass 84.  Subject matter comprising means to operate the latch.

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308+,for an essential catch with a manipulator.
  
[List of Patents for class 285 subclass 86]    86Locking sleeve:
 This subclass is indented under subclass 84.  Subject matter wherein the latch is a sleeve.

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362,and 377, for a manipulating ring in a lugged pipe, rotary engagement type joint.
  
[List of Patents for class 285 subclass 87]    87Pivoted:
 This subclass is indented under subclass 82.  Subject matter wherein the latch has a pivoted or hinged motion. Leaf springs latches are included.

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319,for a leaf spring essential catch.
320,for a pivoted essential catch.
  
[List of Patents for class 285 subclass 88]    88With manipulator:
 This subclass is indented under subclass 87.  Subject matter comprising means to operate the latch.

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308+,for a manipulator for an essential catch.
  
[List of Patents for class 285 subclass 89]    89Lock nut or washer:
 This subclass is indented under subclass 81.  Subject matter comprising a lock nut or lock washer.
  
[List of Patents for class 285 subclass 90]    90Set screw:
 This subclass is indented under subclass 81.  Subject matter comprising a set screw.

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404,for a socket joint including a set screw as a fastening means.
  
[List of Patents for class 285 subclass 91]    91Key or pin:
 This subclass is indented under subclass 81.  Subject matter comprising a key way and key or pin; a cotter pin is included.

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403+,for a socket joint including a separable fastener.
  
[List of Patents for class 285 subclass 92]    92Thread lock:
 This subclass is indented under subclass 81.  Subject matter comprising a thread lock.

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411Expanded, Threaded, Driven, Headed, Tool-Deformed,   or Locked-Threaded Fastener subclasses 259+ for a threaded bolt and nut and means for coupling them against rotation relative to one another and wherein the means comprises a thread lock; and see the search notes of that subclass (259) in regard to other subclasses of that class which include a thread lock.
  
[List of Patents for class 285 subclass 93]    93WITH INDICATOR, ALARM OR INSPECTION MEANS:
 This subclass is indented under the class definition.  Devices combined with (1) an indicator or alarm responsive to a condition or position of a part of the coupling or (2) with means which permits inspection of hidden parts or of the material inside the coupling.

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135.1+,for a detachable return bend.
179.1,for a coupling with an access opening.
  
[List of Patents for class 285 subclass 94]    94WITH LUBRICATION:
 This subclass is indented under the class definition.  Devices including means to lubricate a joint or coupling.

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184Lubrication,   subclasses 14+ for lubricators.
  
[List of Patents for class 285 subclass 95]    95WITH FLUID PRESSURE SEAL:
 This subclass is indented under the class definition.  Subject matter comprising sealing means responsive to the line pressure or means to test the seal by utilization of the line pressure. Fluid pressure balancing means are found here.

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306,for a coupling including a line pressure responsive essential catch.

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137Fluid Handling,   subclasses 217+ for anti-siphon devices, and subclasses 525+ for resilient material valve.
279Chucks or Sockets,   subclass 20 for a fluid-conduit drill holding socket.
  
[List of Patents for class 285 subclass 96]    96With external pressure supply:
 This subclass is indented under subclass 95.  Devices in which the fluid exerting the sealing pressure is supplied to the sealing means (gasket) through a separate conduit external of the conduits being sealed.

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138Pipes and Tubular Conduits,   subclass 93 for an inflatable plug or closure.
  
[List of Patents for class 285 subclass 97]    97Inflated member:
 This subclass is indented under subclass 96.  Devices in which the sealing member (gasket) is capable of containing (or retaining) an inflating fluid, e.g., inner tube type.

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277Seal for a Joint or Juncture,   for a seal between two pipes or a pipe and a wall that are at most secured together only by friction between the seal and the pipe or wall, subclass 605 for a static contact seal or an associated member that is hollow, fluid-filled, or inflatable and intended for use on a pipe, conduit or cable.
  
[List of Patents for class 285 subclass 98]    98Swivel with flange in socket:
 This subclass is indented under subclass 95.  Subject matter comprising a flanged pipe positioned in a socket, said flange being locked axially.

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278+,for similar structure without fluid pressure seal.
  
[List of Patents for class 285 subclass 99]    99Coacting opposing duplicate:
 This subclass is indented under subclass 95.  Devices in which two sealing members, individually dispensable by fluid pressure, are adjacently positioned to expand and seal against each other.

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65+,for coupling comprising identical halves having duplicate gasket means.
336,for cooperating, opposed packing grooves.
352,for duplicate, coacting gasket means between the free ends of the coupled members.
  
[List of Patents for class 285 subclass 100]    100With expansible chamber means:
 This subclass is indented under subclass 95.  Devices in which the seal is made by expanding a member axially to press its end into sealing relation with a contacting surface.
  
[List of Patents for class 285 subclass 101]    101Piston-type reactor:
 This subclass is indented under subclass 100.  Devices in which a piston with a restricted orifice is slidably mounted in the flow path and is forced by the line flow against a gasket to make or enhance the seal.
  
[List of Patents for class 285 subclass 102]    102With line pressure-responsive catch:
 This subclass is indented under subclass 101.  Subject matter including a catch actuated by the line pressure.

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83,for a coupling with line pressure responsive means blocking the release of the holding means.
306,for a coupling with a line pressure responsive essential catch.
  
[List of Patents for class 285 subclass 103]    103Side slide:
 This subclass is indented under subclass 101.  Subject matter comprising means providing a slot or channel on one member having a traverse opening for a stud-like element on the other member whereby the members are coupled by lateral movement.

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325+,for residual side slide couplings.
  
[List of Patents for class 285 subclass 104]    104With separate, encased pipe-gripping means:
 This subclass is indented under subclass 95.  Devices comprising a pipe and socket with distinct pipe grasping means, e.g., wedge rings, intermediate the longitudinal wall of the pipe and socket.

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339+,for wedge rings which are contracted into gripping relation with a pipe by mechanical means. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 105]    105Packing-actuated:
 This subclass is indented under subclass 104.  Devices in which grasping of the pipe by the grasping means is intensified by the pressure exerted on the gripping means through a sealing member.
  
[List of Patents for class 285 subclass 106]    106Independent supply passage:
 This subclass is indented under subclass 95.  Devices in which a passage is provided, in the pipe wall or gasket by which the fluid has access to the sealing member.
  
[List of Patents for class 285 subclass 107]    107Expansible shank:
 This subclass is indented under subclass 95.  Devices in which a pipe end is made of or provided with a flexible material portion which expands into sealing with a surrounding pipe surface under action of fluid line flow.

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338,for a radially expansible packing, which is carried by the spigot. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 108]    108Separate retainer or positioner:
 This subclass is indented under subclass 95.  Devices in which means, e.g., a ring or sleeve, is provided to hold a sealing means in position for fluid actuation.

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379+,for a gasket retainer in a packed joint.
  
[List of Patents for class 285 subclass 109]    109Expansible internal sleeve-type gasket:
 This subclass is indented under subclass 95.  Devices in which the sealing member comprises a flexible sleeve inserted into the two conduit ends that are joined.

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49,for a coupling with a noise dampener comprising an intermediate resilient conduit.
235+,for a flexible joint between rigid members comprising a resilient sleeve.
370+,for internal sleeves of general application.
  
[List of Patents for class 285 subclass 110]    110Flexible lip:
 This subclass is indented under subclass 95.  Devices comprising a sealing means having a thin lip-like edge, which is forced by line pressure into sealing contact with a pipe wall.
  
[List of Patents for class 285 subclass 111]    111C-shaped section:
 This subclass is indented under subclass 110.  Devices in which the sealing means is C-section in shape, e.g., the gasket has a middle or cylindrical web portion with a sealing lip at each end at right angles to the web.
  
[List of Patents for class 285 subclass 112]    112Longitudinal web:
 This subclass is indented under subclass 111.  Devices in which the web portion, in section view, of the sealing member lies parallel to the conduit axis.
  
[List of Patents for class 285 subclass 113]    113Wedged gasket:
 This subclass is indented under subclass 95.  Devices in which the sealing member is wedge shape or triangular in section or is one that is forced by the fluid pressure into a wedge shaped chamber.
  
[List of Patents for class 285 subclass 114]    114WITH STRAIN RELIEF:
 This subclass is indented under the class definition.  Devices comprising a means in addition to an otherwise complete coupling to (1) either assume all externally, originally applied stress tending to separate the joint or (2) to prevent rupture of a flexible member due to bending or twisting about its axis where the same joins a rigid member.

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45+,for a protective cover.
301,for means to allow members a limited movement under application of original external stress.

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138Pipes and Tubular Conduits,   subclass 110 for means to prevent pipe rupture.
  
[List of Patents for class 285 subclass 115]    115Extension of socket or sleeve:
 This subclass is indented under subclass 114.  Subject matter wherein a sleeve or socket is provided with an extended part to encase the pipe at a point or area spaced from the interface, said part to relieve the interface of lateral strain.
  
[List of Patents for class 285 subclass 116]    116Separable:
 This subclass is indented under subclass 115.  Subject matter wherein the extended part itself is separable or the said part coacts with an intermediate separable element which is between the said part and the pipe.

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148.6+,for compound joints of the leak gland type.
  
[List of Patents for class 285 subclass 117]    117WITH BROKEN PARTS RETAINER:
 This subclass is indented under the class definition.  Subject matter comprising means to prevent scattering of parts in case a joint breaks loose, e.g., a tether.

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137Fluid Handling,   subclass 540.11 for a broken valve parts retainer in a spring biased check valve.
  
[List of Patents for class 285 subclass 118]    118KNUCKLE JOINT WITH ACTUATING MEANS:
 This subclass is indented under the class definition.  Subject matter comprising members hinged for angular motion with motor means (e.g., fluid motor) to move the members to change the angle therebetween, e.g., a knuckle joint for a fishing tool.

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623Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor,   subclasses 26+ for other fluid actuated joints.
  
[List of Patents for class 285 subclass 119]    119COMBINED:
 This subclass is indented under the class definition.  Devices which comprise devices or parts in addition to or combined with a coupling and (1) having functions other than joining or (2) which serve to perfect a coupling for its intended purpose.

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187,for a coupling with means responsive to temperature changes for maintaining a seal.
284.1,for a joint system comprising an access opening.
287.1,for a molded joint including means to inhibit the growth of roots therein.
293.1,for a lining molded to a pipe end.
306,for a line pressure responsive essential catch.
335+,for a packed coupling, especially subclasses 379+ for gasket retainers. See the Search Notes thereunder.

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4Baths, Closets, Sinks, and Spittoons,   appropriate subclasses, especially subclass 288 for a combined strainer and a pipe coupling of that class.
138Pipes and Tubular Conduits,   subclasses 37+ for fittings having means therein for directing the flow or fluid therein.
210Liquid Purification or Separation,   appropriate subclass, particularly subclasses 435+ for a joint and strainer or filter combination of general utility.
254Implements or Apparatus for Applying Pushing and Pulling Force,   subclass 134.3 for means for wire or strand placing including guide means for same in a fitting.
  
[List of Patents for class 285 subclass 120.1]    120.1HAVING PLURAL INDEPENDENT PATHS:
 This subclass is indented under the class definition.  Subject matter comprising a coupling, for two or more lines (e.g., conduits, pipes, tubes, hoses, etc.) having flow paths which do not unite within the scope of the combination of elements claimed.

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25+,for the combination of a guide support and plural noncommunicating-type coupler.
28+,for the combination of a guide and a plural noncommunicating-type coupler.
65+,for duplicate end couplings (e.g., trainline type).
149.1+,for a pipe or cable and box joint with plural disclosures.

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137Fluid Handling,   subclasses 594+ for plural noncommunicating flow paths in a fluid handling distribution system. See the Search Notes thereunder.
138Pipes and Tubular Conduits,   subclasses 111+ for plural duct pipe structure.
  
[List of Patents for class 285 subclass 121.1]    121.1Allowing relative motion of pipes:
 This subclass is indented under subclass 120.1.  Subject matter wherein the coupling accommodates positional adjustment of one or more pipes to compensate for connection, disconnection, linear expansion, etc.
  
[List of Patents for class 285 subclass 121.2]    121.2Revolvable and telescoping:
 This subclass is indented under subclass 121.1.  Subject matter comprising a coupling for a rotatable (by at least 360 degrees), sectional conduit of which said sections are interfitted for relative axial movement.
  
[List of Patents for class 285 subclass 121.3]    121.3Revolvable:
 This subclass is indented under subclass 121.1.  Subject matter comprising a coupling for two or more elements, one or more of said elements being rotatable by at least 360 degrees.
  
[List of Patents for class 285 subclass 121.4]    121.4Having spring biasing for maintaining a leak-proof seal:
 This subclass is indented under subclass 121.3.  Subject matter wherein a resilient means provides pressure to maintain a leak-proof seal at the coupling.
  
[List of Patents for class 285 subclass 121.5]    121.5Having specific bearing structure:
 This subclass is indented under subclass 121.3.  Subject matter including a means that supports, guides, and reduces friction between a fixed element and a moving element.
  
[List of Patents for class 285 subclass 121.6]    121.6Swiveling:
 This subclass is indented under subclass 121.1.  Subject matter comprising a coupling which has a pivotal arc of less than 360 degrees, or accommodates precessional motion.
  
[List of Patents for class 285 subclass 121.7]    121.7Ball and socket type:
 This subclass is indented under subclass 121.6.  Subject matter comprising a joint having a spherical component and a hollow fitting for receiving the spherical component.
  
[List of Patents for class 285 subclass 122.1]    122.1And at least one path having branched flow:
 This subclass is indented under subclass 120.1.  Subject matter wherein at least one of the flow paths is divided into a plurality of flow paths or a plurality of flow paths are combined into a single flow path or in which a single flow path is divided and then recombined (e.g., noncommunicating hot and cold water lines with coupling means providing plural hot outlets or plural cold outlets, or both).
  
[List of Patents for class 285 subclass 123.1]    123.1For concentric tubes or pipes (e.g., well casing or wellhead type):
 This subclass is indented under subclass 120.1.  Subject matter comprising means mounting an inner tube in spaced relation to an outer tube.

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222.1+,for distinct joints to a third member for at least two layers of plural layer pipe (e.g., sheathed).
298+,for adjustable length couplings, especially subclass 302 for a telescopic joint.

SEE OR SEARCH CLASS:

138Pipes and Tubular Conduits,   subclass 90 for test plugs; and subclasses 111+ for plural duct pipe structure.
166Wells,   subclass 75.15 , for well heads with fluid handling or other features special to wells, especially subclasses 86.1+, for a well head with an inner member sealed or anchored with respect thereto in combination with a valve and subclasses 88.1+for a well head with an inner member sealed or anchored with respect thereto in combination with a lateral port in the head, subclasses 179+ for packers situated below ground for sealing between a pre-positioned well conduit and an inserted pipe, and subclasses 206+ for expanding anchor means situated below ground between a pre-positioned well conduit and an inserted pipe.
251Valves and Valve Actuation,   subclasses 1.1+ for valve type blowout preventers.
  
[List of Patents for class 285 subclass 123.11]    123.11Having slip means actuator:
 This subclass is indented under subclass 123.5.  Subject matter including means for moving the member into and out of engagement with the wall.
  
[List of Patents for class 285 subclass 123.12]    123.12Including a seal:
 This subclass is indented under subclass 123.3.  Subject matter including a packer or pack-off type device that prevents or minimizes the flow of a fluid.
  
[List of Patents for class 285 subclass 123.13]    123.13Held by a means applied radially (e.g., set screw):
 This subclass is indented under subclass 123.12.  Subject matter including a packing about the inner tube which is fixed by a mechanical fastener along a line defined by the radius of the inner pipe.
  
[List of Patents for class 285 subclass 123.14]    123.14Compressed by tightening a bolt coaxial to tubing:
 This subclass is indented under subclass 123.12.  Subject matter in which the packer or pack-off device is squeezed by an assembly including a headed, threaded fastener.
  
[List of Patents for class 285 subclass 123.15]    123.15Double-walled or duplex joint:
 This subclass is indented under subclass 123.1.  Subject matter comprising an inner pipe concentric with and attached to an outer pipe, forming one unit.
  
[List of Patents for class 285 subclass 123.16]    123.16Wall configured as mating complementary type (e.g., hot air ducts):
 This subclass is indented under subclass 123.15.  Subject matter wherein the joints are interlocking components (e.g., having male and female configurations).
  
[List of Patents for class 285 subclass 123.17]    123.17Joint fabricated from material to compensate for movement:
 This subclass is indented under subclass 123.1.  Subject matter wherein the joint comprises a resilient material (e.g., plastic joint for containment pipes).
  
[List of Patents for class 285 subclass 123.2]    123.2Having plural parallel suspended inner tubes:
 This subclass is indented under subclass 123.1.  Subject matter comprising a plurality of collateral tubes hung within the outer tube.
(1) Note. This subclass typically provides for connectors, hangers or similar support devices for vertically supporting or suspending a pair of flow lines of a dual flow passage well.
  
[List of Patents for class 285 subclass 123.3]    123.3Having single suspended inner tube:
 This subclass is indented under subclass 123.1.  Subject matter in which the tubes are in a substantially vertical position and comprising means to hang the inner within the outer tube (e.g., well caps or headers).

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188Brakes,   particularly subclass 67 for a brake mechanically connected to a relatively stationary structure and which holds a pipe or rod at various locations along the pipe"s or rod"s length for short, quick linear assembly or disassembly during a work or manufacturing operation, or preparatory to a working operation, done by the pipe, rod, or a pipe supported tool.
294Handling: Hand and Hoist-Line Implements,   subclass 5.5 for rod-type supports and hangers.
  
[List of Patents for class 285 subclass 123.4]    123.4Split ring type suspension means:
 This subclass is indented under subclass 123.3.  Subject matter wherein the inner pipe is hung on the outer pipe by means of a member that is in at least two pieces attached along a plane defined by the radius of the pipe.
  
[List of Patents for class 285 subclass 123.5]    123.5Having inner tube anchored by slip means:
 This subclass is indented under subclass 123.3.  Subject matter in which a member having a high degree of friction (e.g., an internally serrated member) grips the outside wall of the pipe to be held.
  
[List of Patents for class 285 subclass 123.6]    123.6Including packing means:
 This subclass is indented under subclass 123.5.  Subject matter incorporating a sealing device (e.g., packer, pack-off, gasket).
  
[List of Patents for class 285 subclass 123.7]    123.7Having means engaging slip means and compressing packing means:
 This subclass is indented under subclass 123.6.  Subject matter in which the member and sealing device are held together by an assembly that forces the member into contact with the pipe wall plus squeezes the sealing device.
  
[List of Patents for class 285 subclass 123.8]    123.8By bolt directly connecting slip means to packing means:
 This subclass is indented under subclass 123.7.  Subject matter in which the member and the sealing device are held together by a headed, threaded fastener.
  
[List of Patents for class 285 subclass 123.9]    123.9Having radially applied orienting means:
 This subclass is indented under subclass 123.6.  Subject matter including a rod-like threaded device (e.g., plunger, hold-down screw, locking or lock-down bolt, latch, dog, retaining pin, etc.) designed to contact the member or inner tube for positioning purposes.
  
[List of Patents for class 285 subclass 124.1]    124.1Parallel paths:
 This subclass is indented under subclass 120.1.  Subject matter wherein two lines are equally distant at all points from each other along a significant portion of their length.
  
[List of Patents for class 285 subclass 124.2]    124.2Having spacer means for pipes or tubes:
 This subclass is indented under subclass 124.1.  Subject matter including means for maintaining a particular spatial relationship between the lines (e.g., aligning or positioning means).
  
[List of Patents for class 285 subclass 124.3]    124.3Apertured plate type:
 This subclass is indented under subclass 124.2.  Subject matter wherein the spacer is configured with openings (e.g., slots, holes, etc.) to accommodate the lines.
  
[List of Patents for class 285 subclass 124.4]    124.4Including a fitting, boss, or nipple means:
 This subclass is indented under subclass 124.2.  Subject matter wherein the coupling comprises a fitted detachable protuberance.
  
[List of Patents for class 285 subclass 124.5]    124.5Located within block type connector for ducts:
 This subclass is indented under subclass 124.1.  Subject matter including a junction box or cylinder in which the parallel lines are joined to their respective segments.
  
[List of Patents for class 285 subclass 125.1]    125.1FOR BRANCHED PATH:
 This subclass is indented under the class definition.  Subject matter wherein the flow path is divided into a plurality of flow paths or a plurality of flow paths are combined into a single flow path or in which a single flow path is divided and then recombined with means for providing couplings for the several flow paths.

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122.1,for branched flow couplers in plural noncommunicating flow paths.

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220Receptacles,   subclasses 3.2+ for analogous structures constituting receptacles of the outlet or junction box type.
403Joints and Connections,   subclasses 167+ for branched connections in general.
  
[List of Patents for class 285 subclass 126.1]    126.1Having an access opening and removable cover:
 This subclass is indented under subclass 125.1.  Subject matter including an opening with a closure or having one or more separable parts, which permit access to the interior thereof without disassembly of the joint.

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62+,for an access opening to permit insertion or removal of a wear element.

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137Fluid Handling,   subclasses 583+ for a fluid handling system with an access opening.
138Pipes and Tubular Conduits,   subclasses 89+ for pipe closures.
220Receptacles,   subclasses 200+ for analogous closures for receptacles and of general utility.
  
[List of Patents for class 285 subclass 127.1]    127.1Including a swivel joint:
 This subclass is indented under subclass 125.1.  Subject matter comprising a coupling which has a pivotal arc of less than 360 degrees, or accommodates precessional motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

274,for yoke-type swivels.
  
[List of Patents for class 285 subclass 127.2]    127.2Double Y-type:
 This subclass is indented under subclass 127.1.  Subject matter wherein two lines form Y"s and unite at right angles to each other.
  
[List of Patents for class 285 subclass 128.1]    128.1Allowing for movement parallel to path (e.g., expansion joint):
 This subclass is indented under subclass 125.1.  Subject matter wherein the coupling accommodates positional adjustment along the longitudinal axis of one or more pipes to compensate for connection, disconnection, linear expansion, etc.
  
[List of Patents for class 285 subclass 129.1]    129.1And having additional, integral fitting, branch, or coupling for a means such as a vent:
 This subclass is indented under subclass 125.1.  Subject matter including one or more openings which function to admit or expel gases from a system.

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4Baths, Closets, Sinks, and Spittoons,   subclasses 209+ for ventilation of that art.
48Gas: Heating and Illuminating,   subclass 108 for couplings combined with structure to provide gas mixing.
137Fluid Handling,   subclass 176 for a liquid seal trap with an air-port, subclass 215 for anti-siphon devices to fluid handling systems, and subclasses 583+ for vent openings in fluid distribution systems. See the search notes thereunder.
261Gas and Liquid Contact Apparatus,   subclasses 76+ for injector type contact devices.
417Pumps,   subclasses 151+ for jet pumps.
  
[List of Patents for class 285 subclass 129.2]    129.2Plus a bend, flange, pocket, or chamber for antisiphon:
 This subclass is indented under subclass 129.1.  Subject matter including means, generally a particular air chamber or arrangement of vent openings, for preventing the siphoning of trap liquids-seals upstream of the claimed coupling.
  
[List of Patents for class 285 subclass 130.1]    130.1Intersecting paths (e.g., X- or cross-type):
 This subclass is indented under subclass 125.1.  Subject matter wherein two lines intersect to form a cross or "X" configuration.
  
[List of Patents for class 285 subclass 131.1]    131.1Y-type, (symmetrical along the centerline):
 This subclass is indented under subclass 125.1.  Subject matter wherein two lines form the legs of a "Y" configuration, said legs being symmetrically angled from a single line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127.2,for a double Y-type providing relative motion.
  
[List of Patents for class 285 subclass 132.1]    132.1(Y-type) having a straight portion and an angled leg:
 This subclass is indented under subclass 125.1.  Subject matter wherein one line intersects another line obliquely, thereby forming a "Y" configuration having one angled leg.
  
[List of Patents for class 285 subclass 133.11]    133.11T-type:
 This subclass is indented under subclass 125.1.  Subject matter wherein one line intersects another line orthogonally, thereby forming a "T" configuration.

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189+,for a joint between a pipe end and a pipe side.
  
[List of Patents for class 285 subclass 133.21]    133.21Having a seal, gasket, O-ring, or packing:
 This subclass is indented under subclass 132.1.  Subject matter including a means which prevents or minimizes the flow of a fluid.
  
[List of Patents for class 285 subclass 133.3]    133.3Having a pipe-receiving bell, socket, or mouth:
 This subclass is indented under subclass 132.1.  Subject matter wherein the inside diameter of a portion of a fitting is larger than the outside diameter of the pipe that is to be received into the fitting.
  
[List of Patents for class 285 subclass 133.4]    133.4Having threaded portions:
 This subclass is indented under subclass 132.1.  Subject matter including mating helical or spiral ridges which act as the interconnecting mechanism.
  
[List of Patents for class 285 subclass 133.5]    133.5Having reinforcement:
 This subclass is indented under subclass 132.1.  Subject matter including structure for strengthening or stiffening (e.g., a fiber mesh, concrete re-bar, filament wrap, etc.).
  
[List of Patents for class 285 subclass 133.6]    133.6For thin-walled material (e.g., sheet metal):
 This subclass is indented under subclass 132.1.  Subject matter wherein the cross-sectional dimension from the inside diameter to the outside diameter of the cylinder forming the line is very small (e.g., HVAC ductwork, etc.).
  
[List of Patents for class 285 subclass 134.1]    134.1U-TYPE (E.G., RETURN BEND):
 This subclass is indented under the class definition.  Subject matter comprising a pipe coupling having parallel leg portions which are connected by a bight or "U" shaped section.

SEE OR SEARCH CLASS:

138Pipes and Tubular Conduits,   subclass 95 for pipe closures of the return bend type.
  
[List of Patents for class 285 subclass 135.1]    135.1Detachable:
 This subclass is indented under subclass 134.1.  Subject matter wherein the bight or "U" section is easily removable or replaceable.
  
[List of Patents for class 285 subclass 135.2]    135.2Having yoke-type clamp:
 This subclass is indented under subclass 135.1.  Subject matter including a saddle-like element which maintains the joint between the bight and the parallel leg portions of the structure.
  
[List of Patents for class 285 subclass 135.3]    135.3Having a removable bushing:
 This subclass is indented under subclass 135.2.  Subject matter including a replaceable element which serves to line or constrain the coupling.
  
[List of Patents for class 285 subclass 135.4]    135.4Having coupling sleeve:
 This subclass is indented under subclass 135.1.  Subject matter including an encircling element (e.g., a threaded nut) which secures the bight to the parallel leg portions.
  
[List of Patents for class 285 subclass 135.5]    135.5Secured by bolt:
 This subclass is indented under subclass 135.4.  Subject matter wherein the sleeve, itself, is secured by at least one element having a threaded stem.
  
[List of Patents for class 285 subclass 136.1]    136.1PIPE TO DISCREET NIPPLE OR SLEEVE TO PLATE (I.E., THREE SUCCESSIVE PIECES):
 This subclass is indented under the class definition.  Subject matter comprising an intermediate tubular means between a pipe or rod and a plate or pipe side.
(1) Note. The nipple being a tubular connection means which is generally six inches or shorter in length.

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189+,for a joint between the end of a pipe and a plate or pipe side.

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403Joints and Connections,   subclasses 187+ for a rod connected to a plate or side through an intermediate member.
  
[List of Patents for class 285 subclass 137.11]    137.11Pipe to nipple connection dependent on nipple to plate connection:
 This subclass is indented under subclass 136.1.  Subject matter wherein the pipe-to-rod or pipe joint is essential to the existence of the joint with the plate.

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137Fluid Handling,   subclass 801 for a nozzle or spout having claimed flow characteristics.
241Solid Material Comminution or Disintegration,   subclasses 46.013+ for garbage disposal mountings.
  
[List of Patents for class 285 subclass 138.1]    138.1Ball and socket:
 This subclass is indented under subclass 136.1.  Subject matter wherein the pipe to plate joint comprises a spheroidal knoblike portion fitted into a mating depression.

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261,for a ball and socket joint between pipe ends.

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362Illumination,   subclass 421 for this type of joint in a head lamp and bulkhead combination.
411Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener,   subclass 370 for a threaded fastener and nut provided with a stay bolt bearing washer.
  
[List of Patents for class 285 subclass 139.1]    139.1Plate clamped between flanged nipple and separate fastener:
 This subclass is indented under subclass 136.1.  Subject matter wherein the plate or pipe side is clamped between a nut internal thereof and a shoulder or flange on the nipple.

SEE OR SEARCH THIS CLASS, SUBCLASS:

154.2+,for this type of connection for sheathing of a flexible cable (e.g., electrical wiring, etc.).
  
[List of Patents for class 285 subclass 139.2]    139.2Nipple includes seal:
 This subclass is indented under subclass 139.1.  Subject matter including a pliable annular means (e.g., seal, gasket, O-ring, packing, etc.) which is intended to function as a leakage preventer.
  
[List of Patents for class 285 subclass 139.3]    139.3Nipple includes securing means:
 This subclass is indented under subclass 139.1.  Subject matter including an anchoring component (e.g., wedge, cam, beveled edge, etc.).
  
[List of Patents for class 285 subclass 140.1]    140.1Expandable detent engages plate to hold nipple:
 This subclass is indented under subclass 136.1.  Subject matter including a resilient member (e.g., finger, lug, etc.) which allows the plate and nipple components to be snap-fitted together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

196,for a pipe-to-plate joint comprising an expansible packing on a spigot. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 141.1]    141.1Nipple sealed to plate:
 This subclass is indented under subclass 136.1.  Subject matter wherein the components are joined by a leakproof means (e.g., gasket, weld, etc.).
  
[List of Patents for class 285 subclass 142.1]    142.1Nipple bolted to plate:
 This subclass is indented under subclass 136.1.  Subject matter wherein the components are fastened by a headed, threaded member.
  
[List of Patents for class 285 subclass 143.1]    143.1Nipple threaded to plate:
 This subclass is indented under subclass 136.1.  Subject matter wherein the components have mating helical threads and are joined by being screwed together.
  
[List of Patents for class 285 subclass 144.1]    144.1SERIAL, RELATIVELY MOVABLE PORTIONS:
 This subclass is indented under the class definition.  Subject matter comprising a joint having components which are movable with respect to each other (e.g., a universal swivel allowing both pivotal and rotational motion about intersecting axes, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

121.2,121.3+ and 121.6+, for couplings with plural noncommunicating paths permitting relative motion between the coupled elements.
181,for serially connected adjustable elbows.
184,for adjustable angle joints.
223+,for a flexible joint, per se.
261+,for a ball and socket joint, per se.
272+,for a swivel joint, per se.
302+,for a telescopic joint, per se.
  
[List of Patents for class 285 subclass 145.1]    145.1Having telescoping portion:
 This subclass is indented under subclass 144.1.  Subject matter including a slidable member, thereby making the unit extensible or compressible.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148.27,for serial diverse joints having eccentric means providing lateral adjustment.
  
[List of Patents for class 285 subclass 145.2]    145.2Pivot or swivel:
 This subclass is indented under subclass 145.1.  Subject matter including a connection which accommodates arcuate or precessional motion of a member.
  
[List of Patents for class 285 subclass 145.3]    145.3Ball connector:
 This subclass is indented under subclass 145.1.  Subject matter including a spheroidal joint which connects to a corresponding mating surface (e.g., socket).
  
[List of Patents for class 285 subclass 145.4]    145.4Sleeve:
 This subclass is indented under subclass 145.1.  Subject matter including an encasement of the portion of the unit wherein two members are joined.
  
[List of Patents for class 285 subclass 145.5]    145.5Bellows-type:
 This subclass is indented under subclass 145.4.  Subject matter wherein the sleeve is resiliently deformable.
  
[List of Patents for class 285 subclass 146.1]    146.1Linked ball and socket portions:
 This subclass is indented under subclass 144.1.  Subject matter wherein a set of members are joined by at least partially spheroidal sections fitted to mating depressions, thereby forming a flexible unit.
  
[List of Patents for class 285 subclass 146.2]    146.2Having multiplex socket:
 This subclass is indented under subclass 146.1.  Subject matter wherein a single socket member is configured to accept registry with two or more sections having ball joint ends.
  
[List of Patents for class 285 subclass 146.3]    146.3Having ball between opposed sockets:
 This subclass is indented under subclass 146.1.  Subject matter comprising two articulated opposed concave sockets coacting with convex surfaces on a spheroidal intermediate member.
  
[List of Patents for class 285 subclass 147.1]    147.1Plural swivels:
 This subclass is indented under subclass 144.1.  Subject matter comprising two or more joints which accommodate both pivotal and rotational motion about intersecting axes.
  
[List of Patents for class 285 subclass 147.2]    147.2Having spring:
 This subclass is indented under subclass 147.1.  Subject matter including a resilient member that regains its original configuration after being distorted.
  
[List of Patents for class 285 subclass 147.3]    147.3Having nozzle:
 This subclass is indented under subclass 147.1.  Subject matter including a projecting member which has a discharge opening.
  
[List of Patents for class 285 subclass 148.1]    148.1Serial diverse single flow path or line:
 This subclass is indented under subclass 144.1.  Subject matter comprising a plurality of diverse couplings arranged in serial relationship along a single line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50+,for an intermediate joint with insulation.
58+,for an intermediate coupling in a floor supported water closet joint.
136.1+,for serially arranged joints comprising pipe or rod-to-pipe-to-plate.
181,for an adjustable elbow.
390,and 405, for a joint including as an element thereof a detachable flange.
  
[List of Patents for class 285 subclass 148.11]    148.11Diverse materials:
 This subclass is indented under subclass 148.1.  Subject matter including means to unite tubes made of distinctly different substances (e.g., copper to aluminum).

SEE OR SEARCH THIS CLASS, SUBCLASS:

329,for a particular joint interface of diverse materials.
  
[List of Patents for class 285 subclass 148.12]    148.12Having bonded component:
 This subclass is indented under subclass 148.11.  Subject matter wherein a part of the joint is secured by such means as (e.g., welding, soldering, brazing, leading, etc.).
  
[List of Patents for class 285 subclass 148.13]    148.13Nonmetal to metal:
 This subclass is indented under subclass 148.11.  Subject matter in which one of the united tubes is made of a substance other than metal (e.g., rubber, elastomer, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

8,for a coupling between a faucet and a hose.
49,for a noise dampener comprising an intermediate resilient conduit.
223+,for a flexible joint between rigid members, especially subclasses 235+ for a resilient sleeve.
238+,for a nonmetal-to-metal coupling, especially subclasses 240+ for a flexible tip type.

SEE OR SEARCH CLASS:

228Metal Fusion Bonding,   subclass 101 for the process of joining metal to nonmetal by surface bonding.
  
[List of Patents for class 285 subclass 148.14]    148.14Quick connect or release:
 This subclass is indented under subclass 148.13.  Subject matter which can be joined or disconnected with a simple movement (e.g., twist, push, pull, etc.).
  
[List of Patents for class 285 subclass 148.15]    148.15Having swivel:
 This subclass is indented under subclass 148.13.  Subject matter which accommodates both pivotal and rotational motion about intersecting axes.
  
[List of Patents for class 285 subclass 148.16]    148.16Having serrated nipple:
 This subclass is indented under subclass 148.13.  Subject matter including a short member of the structure which has toothlike projections on it for gripping purposes
  
[List of Patents for class 285 subclass 148.17]    148.17Having clamp:
 This subclass is indented under subclass 148.13.  Subject matter including a gripping means on the periphery of the joint.
  
[List of Patents for class 285 subclass 148.18]    148.18Reducer:
 This subclass is indented under subclass 148.13.  Subject matter wherein the coupling provides for a difference in cross-sectional areas of the lines which are joined.

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123.1+,for an inner to spaced outer tube coupling.
324,for a reducing bushing in a contractible socket type joint.

SEE OR SEARCH CLASS:

138Pipes and Tubular Conduits,   subclasses 40+ for flow restrictors.
  
[List of Patents for class 285 subclass 148.19]    148.19Diverse coupling interfaces:
 This subclass is indented under subclass 148.1.  Subject matter wherein the boundary surface of one of the couplings differs from that of the other coupling.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148.6+,for plural means each of which is capable of making the joint.
328,for a particular interface in a single joint.
  
[List of Patents for class 285 subclass 148.2]    148.2Quick connect or release:
 This subclass is indented under subclass 148.1.  Subject matter which can be joined or disconnected with a simple movement (e.g., twist, push, pull, etc.).
  
[List of Patents for class 285 subclass 148.21]    148.21Quick connect or release:
 This subclass is indented under subclass 148.19.  Subject matter which can be joined or disconnected with a simple movement (e.g., twist, push, pull, etc.).
  
[List of Patents for class 285 subclass 148.22]    148.22Diverse size or shape:
 This subclass is indented under subclass 148.1.  Subject matter wherein the couplings provide for a change in size or a difference in shape of the members to be joined.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12+,for a convertible coupling.
  
[List of Patents for class 285 subclass 148.23]    148.23Reducer:
 This subclass is indented under subclass 148.22.  Subject matter wherein the coupling provides for a difference in the cross-sectional areas of the lines that are being joined.

SEE OR SEARCH THIS CLASS, SUBCLASS:

123.1+,for an inner to spaced outer tube coupling.
324,for a reducing bushing in a contractible socket type joint.

SEE OR SEARCH CLASS:

138Pipes and Tubular Conduits,   subclasses 40+ for flow restrictors.
  
[List of Patents for class 285 subclass 148.24]    148.24Sheet-metal (e.g., stove duct, etc.):
 This subclass is indented under subclass 148.23.  Subject matter wherein the lines are very thin-walled.
  
[List of Patents for class 285 subclass 148.25]    148.25Having bolted flange:
 This subclass is indented under subclass 148.23.  Subject matter including a protruding collar held by a headed, threaded device.
  
[List of Patents for class 285 subclass 148.26]    148.26Having clamp:
 This subclass is indented under subclass 148.23.  Subject matter including a gripping device which is intended to hold the assembly together.
  
[List of Patents for class 285 subclass 148.27]    148.27Eccentric:
 This subclass is indented under subclass 148.22.  Subject matter wherein the coupling provides for an off-center relationship which may be adjustable with respect to the joined members.

SEE OR SEARCH THIS CLASS, SUBCLASS:

145.1+,for serial diverse relatively movable joints which provide for longitudinal and lateral adjustment.
  
[List of Patents for class 285 subclass 148.28]    148.28Having bolted or screwed flange or clamp:
 This subclass is indented under subclass 148.1.  Subject matter including a gripping device or protruding rim used in conjunction with a threaded means to secure the joint.
  
[List of Patents for class 285 subclass 148.3]    148.3Flexible:
 This subclass is indented under subclass 148.1.  Subject matter which is capable of withstanding a bending movement.
  
[List of Patents for class 285 subclass 148.4]    148.4Having swivel:
 This subclass is indented under subclass 148.1.  Subject matter which accommodates both pivotal and rotational motion about intersecting axes.
  
[List of Patents for class 285 subclass 148.5]    148.5Intermediate joint with expansible spigots:
 This subclass is indented under subclass 148.1.  Subject matter comprising a fitting having expansible ends for insertion into and between pipe ends with means intermediate the ends of the fitting providing a readily separable coupling.
(1) Note.Means for forming a continuous line of pipe for feeding the pipe through apparatus in a continuous process (e.g., coating) are placed in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

338,for a coupling comprising a spigot carried, expansible packing. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 148.6]    148.6Compound coupling (e.g., leak-gland type):
 This subclass is indented under subclass 148.1.  Subject matter including at least two means, each of which is capable of making a single joint for effecting the connection and perfecting the seal between the free ends of two members (e.g., an internally threaded socket having external threads cooperating with a screw thimble to press a packing at the lap of the socket and spigot).

SEE OR SEARCH THIS CLASS, SUBCLASS:

15+,for repair devices and see the Search Notes thereunder.
115+,for a strain relief comprising socket or sleeve extension.
337,for external packing at a lapped joint.
364+,for flanged-packed joints having clamping means.
  
[List of Patents for class 285 subclass 148.7]    148.7Having molded or bonded joint:
 This subclass is indented under subclass 148.6.  Subject matter wherein one of the means includes a plastic or melted material in the joint or wherein the ends of the members are united by fusion or by welding pressure.
  
[List of Patents for class 285 subclass 148.8]    148.8Having bolted or screwed flange or clamp:
 This subclass is indented under subclass 148.7.  Subject matter including a gripping device or protruding rim used in conjunction with a threaded means to secure the joint.
  
[List of Patents for class 285 subclass 148.9]    148.9Having bonded component:
 This subclass is indented under subclass 148.1.  Subject matter wherein a part of the joint is secured by such means as (e.g., welding, soldering, brazing, leading, etc.).
  
[List of Patents for class 285 subclass 149.1]    149.1CONNECTOR FOR CONDUIT HOUSING ELECTROMAGNETIC LINE:
 This subclass is indented under the class definition.  Subject matter for the duct type structure surrounding a cable or wire-like means which is used to transmit electromagnetic energy.
  
[List of Patents for class 285 subclass 150.1]    150.1Underground:
 This subclass is indented under subclass 149.1.  Subject matter wherein the conduit is intended to be buried subterraneanly.
  
[List of Patents for class 285 subclass 151.1]    151.1Watertight:
 This subclass is indented under subclass 149.1.  Subject matter wherein the electromagnetic cable is sealed and impervious to liquid.
  
[List of Patents for class 285 subclass 152.1]    152.1Multiple passage:
 This subclass is indented under subclass 149.1.  Subject matter wherein the conduit has two or more cells for carrying the electromagnetic cable.
  
[List of Patents for class 285 subclass 153.1]    153.1Including swivel:
 This subclass is indented under subclass 149.1.  Subject matter which accommodates both pivotal and rotational motion about intersecting axes.
  
[List of Patents for class 285 subclass 153.2]    153.2Having plural swivels:
 This subclass is indented under subclass 153.1.  Subject matter having more than one swivel.
  
[List of Patents for class 285 subclass 153.3]    153.3Having swivel and spring:
 This subclass is indented under subclass 153.1.  Subject matter including a resilient device which is intended to hold the swivel in a certain position.
  
[List of Patents for class 285 subclass 154.1]    154.1Having box and connector:
 This subclass is indented under subclass 149.1.  Subject matter including means for coupling a conduit or cable to a box structure requiring at least two walls of the box.
  
[List of Patents for class 285 subclass 154.2]    154.2Including flexible armored sheath:
 This subclass is indented under subclass 154.1.  Subject matter in which the cable is encased in a spiraled metallic cover.
  
[List of Patents for class 285 subclass 154.3]    154.3Including screw operated clamp:
 This subclass is indented under subclass 154.2.  Subject matter which is secured by a gripping device which is tightened by turning a screw.
  
[List of Patents for class 285 subclass 154.4]    154.4Including screw operated clamp:
 This subclass is indented under subclass 154.1.  Subject matter in which the connector is secured by a gripping device which is tightened by turning a screw.
  
[List of Patents for class 285 subclass 179]    179ELBOW:
 This subclass is indented under the class definition.  Subject matter comprising a fitting having only two openings with the axis of the openings intersecting at an angle.

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131.1+,for Y-type fittings.
133.1+,for T-type fittings.
134.1+,for U-type fittings.
184+,for a coupling including means to vary the angle between the connected members about an axis transverse to the members.
189+,for a joint between the end of one pipe and the side of another.
  
[List of Patents for class 285 subclass 179.1]    179.1With access opening:
 This subclass is indented under subclass 179.  Subject matter having an opening with a closure or having one or more separable parts, which permit access to the interior thereof without disassembly of the joint.

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62+,for an access opening to permit insertion or removal of a wear element.

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137Fluid Handling,   subclasses 583+ for a fluid handling system with an access opening.
138Pipes and Tubular Conduits,   subclasses 89+ for pipe closures.
220Receptacles,   subclasses 200+ for analogous closures for receptacles and of general utility.
  
[List of Patents for class 285 subclass 179.2]    179.2Sheet-metal:
 This subclass is indented under subclass 179.1.  Subject matter wherein the conduit comprises very thin-walled material (e.g., heating duct, etc.).
  
[List of Patents for class 285 subclass 180]    180Cooperating saddle clamp:
 This subclass is indented under subclass 179.  Subject matter comprising clamping means including a U-shaped member astride the fitting with means to force one end of the fitting and a pipe end together.

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197+,for an end-to-side or plate coupling including a saddle-type clamp.
  
[List of Patents for class 285 subclass 181]    181Serially connected, adjustable:
 This subclass is indented under subclass 179.  Subject matter including adjustable means serially connecting two elbows or two parts which form an elbow.

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144.1+,for plural movable joints.
184+,for an adjustable angle coupling.
223+,for a flexible joint between rigid members.
261+,for a ball and socket joint.
272+,for a swivel joint.
283,for a detachable hinge coupling.
  
[List of Patents for class 285 subclass 182]    182Nesting parts:
 This subclass is indented under subclass 179.  Subject matter made of separable parts so shaped that they may be stacked in nested relation, generally for storage convenience.

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23,for couplings with holding means used only during transportation.

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220Receptacles,   subclasses 6+ and 8 for sectional receptacles for folding and nesting receptacle parts, respectively. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 183]    183Sheet metal:
 This subclass is indented under subclass 179.  Devices in which the material is originally in sheet form.

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424,for other sheet material couplings.
  
[List of Patents for class 285 subclass 184]    184ADJUSTABLE ANGLE:
 This subclass is indented under the class definition.  Subject matter wherein the angle between the two connected members may be varied about an axis transverse to the members and held in adjusted position.

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44,for adjustable angle roof flashing type joints.
181+,for serially connected adjustable angle elbows.
261+,for ball and socket joints.
272+,for swivel joints which allow free axial, relative movement.
283,for a detachable hinge coupling.

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403Joints and Connections,   subclasses 209+ for adjustable angle joints in general.
  
[List of Patents for class 285 subclass 185]    185With center bolt:
 This subclass is indented under subclass 184.  Devices wherein the pipes are held in adjusted relationship by a bolt extending across the joint through the flow line.

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191,for a pipe-to-plate coupling including a center bolt.
272.1,for a hollow center bolt in a swivel joint having an access opening.
  
[List of Patents for class 285 subclass 187]    187TEMPERATURE-RESPONSIVE:
 This subclass is indented under the class definition.  Subject matter comprising means responsive to temperature changes to maintain a good seal upon expansion or contraction of the coupled members.

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41,for a coupling with heating or cooling means.
95+,for a coupling with a fluid pressure responsive seal.
288.3,for means to relieve heat of welding.
335+,for a packed coupling. See the Search Notes thereunder.

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403Joints and Connections,   subclass 32 for joints in general provided with ambient condition responsive control means.
  
[List of Patents for class 285 subclass 188]    188SIDE TO PIPE SIDE:
 This subclass is indented under the class definition.  Subject matter in which the joint is between pipe sides involving transverse openings therein.

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68+,for duplicate end couplings having transverse ports.
  
[List of Patents for class 285 subclass 189]    189END TO SIDE OR PLATE (E.G., REINFORCEMENT):
 This subclass is indented under the class definition.  Subject matter comprising means for joining a pipe to a plate or a pipe end to a pipe side.

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124.1+,for a joint system comprising means to join parallel noncommunicating pipes to a plate (e.g., a header).
125.1+,especially subclass 352 for branch- type couplings including a joint at the free end of at least one branch.
136.1+,for a pipe or rod-to-pipe to plate series.
414+,for a detachable flange.
416,for a welded flange.

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122Liquid Heaters and Vaporizers,   subclasses 511+ and 512+ for tube and tube sheet connections for heaters and vaporizers.
126Stoves and Furnaces,   subclass 318 for sheet metal stove pipe to plate in conjunction with stoves and furnaces.
165Heat Exchange,   subclasses 173+ for side by side tubes connected to a header plate of a heat exchanger.
222Dispensing,   subclasses 89+ and 566+ for joints between receptacles and their nozzles, spouts or pouring devices.
241Solid Material Comminution or Disintegration,   subclasses 46.03+ for a sink mounted garbage disposal.
248Supports,   subclasses 56+ for a support for a pipe or cable in a plate.
403Joints and Connections,   subclasses 230+ for a joint between a rod end and a plate or side.
  
[List of Patents for class 285 subclass 190]    190Swivel with lateral port to annular sleeve:
 This subclass is indented under subclass 189.  Subject matter comprising a swivel having a lateral port in communication with an annular opening in a surrounding sleeve.

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272+,for a swivel with longitudinal ports.

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279Chucks or Sockets,   subclass 20 for a socket type fluid-conduit drill holding means.
  
[List of Patents for class 285 subclass 191]    191Bolt or hook in flow (e.g., center bolt):
 This subclass is indented under subclass 189.  Subject matter wherein a bolt or hook passes into the interior of a pipe, generally centrally thereof, sometimes completely through a wall, to secure the elements together.

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185,for an adjustable angle type coupling including a center bolt.

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222Dispensing,   subclass 90 for nozzle and container in which the nozzle is attached to the container wall by an extending member, and 569 for connection of nozzle and container by nozzle engaging interior and exterior walls of the receptacle.
  
[List of Patents for class 285 subclass 192]    192Penetrating (e.g., secant):
 This subclass is indented under subclass 189.  Subject matter wherein the pipe penetrates or pierces the plate or side and extends therethrough a distance significantly greater than that necessary to effect the joint.

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20,for a joint between spaced plates and pipe extending through at least one of the plates including an assembly means or feature.
42+,for a roof or floor drain flashing connection.
56+,for a floor supported water closet type joint.
154.1+,for a pipe to box joint requiring two walls of the box.
  
[List of Patents for class 285 subclass 193]    193Fixture:
 This subclass is indented under subclass 192.  Subject matter wherein the penetrating member is a portion of a fixture (e.g., a faucet shank).

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46,for escutcheon shields combined with a joint.
56+,for a floor supported water closet joint.
137.1,for a dependent coupling comprising a pipe or rod-to-pipe-to-plate system of joints (e.g., china spouts to tub). See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 194]    194Hole edge clamp:
 This subclass is indented under subclass 192.  Subject matter in which the pipe is anchored in place by being wedged or forced against an edge of the hole in the plate.

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154.1+,for a pipe or cable and box coupling wherein two or more walls of a box are essential to the coupling.
420,for miscellaneous joints including clamps. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 195]    195Transverse screw:
 This subclass is indented under subclass 194.  Subject matter comprising a screw, the axis of which is transverse to the pipe, which applies the anchoring force thereto.

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218,for an expansible thimble with a transverse clamping screw.
  
[List of Patents for class 285 subclass 196]    196Expansible packing on spigot:
 This subclass is indented under subclass 189.  Subject matter comprising a packing carried by the pipe with means to expand the packing into holding relation with the plate.

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107,for a coupling with a fluid pressure seal comprising an expansible shank.
109,for a coupling with a fluid pressure seal comprising an expansible internal sleeve-type gasket.
140.1,for pipe or rod-to-pipe-to-plate joints including an expanding spigot.
338,for a socket joint with a spigot carried, radially expansible packing. See the Search Notes thereunder.

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411Expanded, Threaded, Driven, Headed, Tool-Deformed,   or Locked-Threaded Fastener subclass 370 for a threaded fastener and nut with a stay bolt bearing washing.
  
[List of Patents for class 285 subclass 197]    197Saddle-type clamp:
 This subclass is indented under subclass 189.  Subject matter including a clamp comprising a saddle shaped member transverse and astride one pipe with means to force a pipe end to a pipe side.

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180,for an elbow coupling including a saddle clamp.
309+,for a coupling comprising an essential catch having a manipulator with means to increase the contact pressure.

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251Valves and Valve Actuation,   subclasses 146+ for similar means for mounting a valve to a pipe side.
  
[List of Patents for class 285 subclass 198]    198Yoke with radial screw at bight:
 This subclass is indented under subclass 197.  Subject matter wherein the saddle is a yoke and the forcing means is a radial screw at the bight.
  
[List of Patents for class 285 subclass 199]    199Yoke with thread on free ends:
 This subclass is indented under subclass 197.  Subject matter wherein the saddle is a yoke with threaded free ends which are essential to the forcing means.
  
[List of Patents for class 285 subclass 200]    200Flexible or yielding plate:
 This subclass is indented under subclass 189.  Subject matter comprising means for connecting a pipe to a flexible plate.

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43,for tent-type roof flashing.

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152Resilient Tires and Wheels,   subclasses 415+ for inflating devices for resilient tires, especially subclasses 429+.
  
[List of Patents for class 285 subclass 201]    201Sput:
 This subclass is indented under subclass 189.  Subject matter comprising a short conduit connector secured to the plate for the purpose of reinforcing the plate wall as well as providing means for pipe connection.
(1) Note. This subclass deals with the specific joint between the plate and the connector; when the joint between connector and the pipe is claimed search subclasses 158+ except when the joints are so related that making or breaking of one of the joints breaks the other, e.g., see subclass 207.
  
[List of Patents for class 285 subclass 202]    202Interlocked:
 This subclass is indented under subclass 201.  Subject matter in which the sput connector and the plate wall are integrally secured, e.g., a flange portion on the sput connector and the plate edge are rolled and pressed together.
(1) Note. The sputs under subclasses 202+ are generally of one piece and deformation of material is the means of fastening.

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330,for a coupling having a particular interface comprising interlocked portions. See the Search Notes thereunder.
382,for a joint involving deformation of the material thereof. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 203]    203Plate edge locks sput:
 This subclass is indented under subclass 202.  Subject matter in which the sput connector portion, e.g., the sput flange, is locked to the plate edge by portions of the plate enclosing the sput portion.
  
[List of Patents for class 285 subclass 204]    204Packed:
 This subclass is indented under subclass 202.  Subject matter wherein a packing is provided in the joint between the plate edge and the sput connector.
  
[List of Patents for class 285 subclass 205]    205Clamped plate:
 This subclass is indented under subclass 201.  Subject matter comprising a short tube (nipple) flanged on one end and having means, e.g., a nut, wedging ring etc., coacting therewith to clamp the wall between them.
(1) Note. Sputs under subclasses 205+ generally comprise more than one piece and coaction, as by thread, between the pieces produces clamping.
  
[List of Patents for class 285 subclass 206]    206Screw clamp:
 This subclass is indented under subclass 205.  Devices in which the sput pieces are threaded together so as to clamp the plate between them.
  
[List of Patents for class 285 subclass 207]    207With conduit clamping means:
 This subclass is indented under subclass 206.  Devices in which means are included whereby a conduit introduced in the sput is clamped simultaneously with threading the sput pieces together to clamp the plate.
  
[List of Patents for class 285 subclass 208]    208Attachable from one side of plate:
 This subclass is indented under subclass 206.  Devices in which the sput flange or plate aperture is constructed to permit fastening the sput from one side of the plate.

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18+,for assembly means or features.
  
[List of Patents for class 285 subclass 209]    209Lugged nipple:
 This subclass is indented under subclass 208.  Devices in which the short tube (nipple) has a portion of its flange cut away to provide lug means, whereby insertion into the plate is facilitated.
  
[List of Patents for class 285 subclass 210]    210Movable lug:
 This subclass is indented under subclass 209.  Devices in which the lug means on the nipple is movably attached to the nipple.

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411Expanded, Threaded, Driven, Headed, Tool-Deformed,   or Locked-Threaded Fastener subclasses 337+ for miscellaneous bolts or bolts having pivoted end locks.
  
[List of Patents for class 285 subclass 211]    211Countersunk packed:
 This subclass is indented under subclass 189.  Subject matter in which the wall to which the pipe end is to be attached has a counter bore containing packing material.

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231+,for a flexible joint between rigid members comprising a socketed packing.
  
[List of Patents for class 285 subclass 212]    212Screw-compressed:
 This subclass is indented under subclass 211.  Subject matter in which a threaded means, e.g., a gland, compresses the packing material.
(1) Note. Generally the counter bore has the thread with coacts with the threaded compressing member.

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356+,for a packed joint with a gland type compressor.
  
[List of Patents for class 285 subclass 213]    213Gland:
 This subclass is indented under subclass 189.  Subject matter comprising a short tube concentric with a plate aperture wall and a pipe or conduit being connected, e.g., where a thimble is a wedge ring forced between the members being connected.

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222,and 382, for a joint involving deformation of one or more of the members.
  
[List of Patents for class 285 subclass 214]    214Internal with expanding means:
 This subclass is indented under subclass 213.  Subject matter in which the thimble is inside the conduit being connected to the plate wall and has means for increasing its external diameter, e.g., a wedge pin driven between the ends of a split thimble.
  
[List of Patents for class 285 subclass 215]    215External of conduit:
 This subclass is indented under subclass 213.  Subject matter in which the thimble is located between the plate wall aperture and the conduit.
  
[List of Patents for class 285 subclass 216]    216Expansible:
 This subclass is indented under subclass 215.  Subject matter including means to increase the external diameter of the thimble.
  
[List of Patents for class 285 subclass 217]    217With conduit clamping means:
 This subclass is indented under subclass 216.  Subject matter including clamping means for gripping the conduit being connected which is actuated by the expansion of the thimble.
  
[List of Patents for class 285 subclass 218]    218Transverse screw:
 This subclass is indented under subclass 217.  Subject matter comprising a transverse screw threaded in the thimble to engage the conduit.

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404,for a socket joint with fastening means comprising set screws.
  
[List of Patents for class 285 subclass 219]    219Screw:
 This subclass is indented under subclass 189.  Subject matter in which a pipe end is threaded into a plate aperture.

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355,for a packed screw joint.
390+,for a screw coupling. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 220]    220With packing:
 This subclass is indented under subclass 219.  Subject matter including sealing material.

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148.6+,for leak-gland type couplings.
  
[List of Patents for class 285 subclass 221]    221Necked plate:
 This subclass is indented under subclass 219.  Subject matter in which a transverse annular projection integral with the plate is threaded for connection with a pipe end.
  
[List of Patents for class 285 subclass 222]    222Expanded or swaged pipe:
 This subclass is indented under subclass 189.  Subject matter wherein the pipe is expanded (e.g., by metal working) into contact with the wall portion defining an opening.

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196,for a joint comprising a pipe end carried, expansible packing means and a plate.
213+,for a pipe-to-plate joint comprising a thimble type wedge, especially subclass 214 for means expanding the pipe end.
382,for other pipe joints involving material deformation essential to joining.

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29Metal Working,   subclass 523 for a method of expanding an internal tube.
72Metal Deforming,   appropriate subclasses 67+ and 316+ and subclass 393 for an apparatus for expanding or flanging the end of a pipe.
228Metal Fusion Bonding,   appropriate subclasses for making a joint by metallurgically securing one meeting face to another.
249Static Molds,   subclass 89 for molding apparatus for joining pipe sections with a fluent material.
  
[List of Patents for class 285 subclass 222.1]    222.1FOR PLURAL COMPONENT LINE (E.G., FLEXIBLE TYPE):
 This subclass is indented under the class definition.  Subject matter wherein the line comprises layered annuli (e.g., supple tubing having a pliant covering, etc.).
  
[List of Patents for class 285 subclass 222.2]    222.2Metal, elastomeric (e.g., rubber), and fabric layers:
 This subclass is indented under subclass 222.1.  Subject matter comprising a tri-layered cover including a metallic layer, an elastomeric or rubber-like layer and a layer of cloth-like material.
  
[List of Patents for class 285 subclass 222.3]    222.3Elastomeric and fabric layers:
 This subclass is indented under subclass 222.1.  Subject matter comprising a dual-layered cover including a rubber-like layer and a layer of cloth-like material.
  
[List of Patents for class 285 subclass 222.4]    222.4Metal and elastomeric layers:
 This subclass is indented under subclass 222.1.  Subject matter comprising a dual-layered cover including a metallic layer and a rubber-like layer.
  
[List of Patents for class 285 subclass 222.5]    222.5Distinct metal layers (e.g., wire cloth, etc.):
 This subclass is indented under subclass 222.1.  Subject matter wherein each layer includes metal of some form.
  
[List of Patents for class 285 subclass 223]    223FLEXIBLE JOINT, RIGID MEMBERS:
 This subclass is indented under the class definition.  Subject matter including a flexible material member that permits unrestrained motion between two rigid members.

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49,for noise dampener means including and intermediate resilient conduit.
57,for a flexible member in a floor supported water closet type joint.
144.1+,for serial relatively movable joints.
298+,for a variable length coupling means.

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105Railway Rolling Stock,   subclass 40 for a flexible connection between boiler sections of a steam locomotive and subclass 47 for an articulated or flexible pipe connection between relatively movable parts of a locomotive.
165Heat Exchange,   subclasses 82+ for a heat exchanger having a connector between two members allowing for expansion and contraction.
403Joints and Connections,   subclasses 220+ for flexibly connected rigid members in general.
  
[List of Patents for class 285 subclass 224]    224Radial and longitudinal expansion compensators:
 This subclass is indented under subclass 223.  Subject matter comprising means which compensates for expansion of conduit parts in radial as well as axial direction.

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187,for temperature responsive sealing means.
  
[List of Patents for class 285 subclass 225]    225Diaphragm:
 This subclass is indented under subclass 223.  Devices wherein the flexible joint comprises a plate-like member or diaphragm.

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57,for a flexible diaphragm in a floor supported, water closet type joint.

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92Expansible Chamber Devices,   subclasses 96+ for a diaphragm type expansible chamber device.
  
[List of Patents for class 285 subclass 226]    226Bellows:
 This subclass is indented under subclass 223.  Devices comprising a corrugated tube section of flexible material for joining two conduit ends which permits unrestricted motion of the conduits.

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57,for a flexible bellows in a floor supported, water-closet type joint.
299+,for expansion joints limited to reciprocating motion, which include bellows.

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92Expansible Chamber Devices,   subclasses 34+ for a bellows type expansible chamber device.
  
[List of Patents for class 285 subclass 227]    227Multiple:
 This subclass is indented under subclass 226.  Devices having two or more distinct bellows for joining the two conduit ends.
  
[List of Patents for class 285 subclass 228]    228Balanced:
 This subclass is indented under subclass 227.  Devices in which the fluid pressure in one bellows member tends to neutralize the movement of the other bellows member.
  
[List of Patents for class 285 subclass 229]    229Single fold type:
 This subclass is indented under subclass 226.  Devices in which the bellows comprises a single annular fold or ridge with side walls.
  
[List of Patents for class 285 subclass 230]    230Concrete, clay, or masonry pipe:
 This subclass is indented under subclass 223.  Devices specifically adapted to clay, concrete or masonry pipe.

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231,for other socketed packing type joints.
  
[List of Patents for class 285 subclass 231]    231Socketed packing type:
 This subclass is indented under subclass 223.  Devices in which a packing placed between the inner surface of an outer member and the spaced out surface of an inner member of two telescoped members provides relative lateral flexibility between the members.
  
[List of Patents for class 285 subclass 232]    232With conduit gripping means (e.g., wedge ring):
 This subclass is indented under subclass 231.  Devices in which a grasping element, e.g., a wedge ring, is provided for holding the inner tube member (spigot) in the socket.

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339+,for packed joints including wedge rings which are contracted into grasping relation with a pipe member. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 233]    233Beaded conduit:
 This subclass is indented under subclass 231.  Devices in which the inner tube member (spigot) has an annular ridge formed on its outer surface adapted for retaining it in the socket.
  
[List of Patents for class 285 subclass 234]    234Flared conduit:
 This subclass is indented under subclass 231.  Devices in which the end of the inner tube is expanded to form a slanted flange adapted for retaining it within the packed socket.
  
[List of Patents for class 285 subclass 235]    235Resilient sleeve type:
 This subclass is indented under subclass 223.  Devices comprising an intermediate short tube of flexible material.

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49,for an intermediate resilient conduit as a noise dampener.
109,for a coupling with a fluid pressure seal comprising an internal flexible sleeve.
148.13+,for serial diverse joints at least one of which is a nonmetal-to-metal joint.
238+,for a nonmetal-to-metal joint.
369+,for a packed sleeve joint.
397+,for an internal sleeve joint.
417+,for a sleeve joint.
  
[List of Patents for class 285 subclass 236]    236Clamped:
 This subclass is indented under subclass 235.  Devices in which a fastening ring or clamp secures the sleeve ends to the conduit ends.

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242+,for an external clamp or holder in a nonmetal-to-metal joint.
  
[List of Patents for class 285 subclass 237]    237With spigot and socket ends:
 This subclass is indented under subclass 235.  Devices in which the sleeve member has a spigot at one end for insertion into a conduit end and a bell or socket at its other end to receive a conduit end.

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148.1+,for serial diverse joints in a single line. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 238]    238NONMETAL TO METAL:
 This subclass is indented under the class definition.  Subject matter wherein the joint is peculiar to the union between a nonmetal member and a metal member.

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148.13+,for serial diverse nonmetal-to-metal couplings. See the Search Notes thereunder.
222.1+,for a coupling for a plural layer pipe.
  
[List of Patents for class 285 subclass 239]    239Internal member (e.g., sleeve or nipple):
 This subclass is indented under subclass 238.  Subject matter comprising a supporting means (e.g., sleeve or nipple) inserted into the nonmetal member.

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370+,for an internal sleeve with packing.
397+,for an internal sleeve.
  
[List of Patents for class 285 subclass 240]    240Flexible tip pipe:
 This subclass is indented under subclass 239.  Subject matter comprising a supplemental flexible tipped end on the flexible pipe into which the supporting means is inserted.
  
[List of Patents for class 285 subclass 241]    241External clamp:
 This subclass is indented under subclass 240.  Subject matter including means to externally clamp the tipped end to the supporting means.

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242+,for other nonmetal-to-metal couplings with external clamps.
  
[List of Patents for class 285 subclass 242]    242External clamp or holder:
 This subclass is indented under subclass 239.  Subject matter comprising an external member (e.g., a hose clamp) which confines the wall of the nonmetal member between it and the internal member.

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420+,for miscellaneous couplings comprising clamp means.
  
[List of Patents for class 285 subclass 243]    243Movable jaw:
 This subclass is indented under subclass 242.  Subject matter comprising a socket with one or more slits which is contracted about the wall of the nonmetal member by the external clamp.

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322+,for movable jaw sockets in metal to metal joints.
  
[List of Patents for class 285 subclass 244]    244Spring:
 This subclass is indented under subclass 242.  Subject matter comprising a contractible spring that clamps the nonmetal member to the internal member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

318,for a coupling with a coil spring type essential catch.
321,for a coupling with a resilient expanding locking ring.
  
[List of Patents for class 285 subclass 245]    245Screw-compressed:
 This subclass is indented under subclass 242.  Subject matter comprising screw means longitudinal to the axis of the coupled members which wedges the nonmetal member to the internal member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

253,for bolted hose clamps.

SEE OR SEARCH CLASS:

24Buckles, Buttons, Clasps,   etc., subclasses 19+ for hose clamps, per se and See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 246]    246Thimble gland:
 This subclass is indented under subclass 245.  Subject matter comprising a thimble-gland.

SEE OR SEARCH THIS CLASS, SUBCLASS:

353,for a packed screw thimble joint.
384,for a screw thimble joint.
  
[List of Patents for class 285 subclass 247]    247Thimble:
 This subclass is indented under subclass 245.  Subject matter comprising a screw thimble.

SEE OR SEARCH THIS CLASS, SUBCLASS:

354,for a packed screw thimble joint.
386+,for a screw thimble joint.
  
[List of Patents for class 285 subclass 248]    248Separable means between hose and clamp:
 This subclass is indented under subclass 247.  Subject matter including a separable means between the nonmetal member and the external clamp or holder.

SEE OR SEARCH THIS CLASS, SUBCLASS:

348,for a coupling comprising a separable packing follower.
  
[List of Patents for class 285 subclass 249]    249Wedge ring:
 This subclass is indented under subclass 248.  Subject matter wherein the separable means is a wedge ring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

339+,for a packed joint comprising wedge means. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 250]    250Gland:
 This subclass is indented under subclass 245.  Subject matter comprising a screw gland.

SEE OR SEARCH THIS CLASS, SUBCLASS:

356+,for a packed screw gland joint.
393+,for a screw gland joint.
  
[List of Patents for class 285 subclass 251]    251Screw-fed hose:
 This subclass is indented under subclass 245.  Subject matter comprising threads on the internal member or on the holder or on both whereby the nonmetal member is forced fed and wedged therebetween.
  
[List of Patents for class 285 subclass 252]    252Band clamp with tightener:
 This subclass is indented under subclass 242.  Subject matter comprising a band type clamp with means to contract the band about the nonmetal member.

SEE OR SEARCH CLASS:

24Buckles, Buttons, Clasps,   etc., subclasses 19+ for hose clamps, per se; and see the Search Notes thereunder.
  
[List of Patents for class 285 subclass 253]    253Bolted:
 This subclass is indented under subclass 252.  Subject matter wherein the tightener comprises a bolt.
  
[List of Patents for class 285 subclass 254]    254Wrapped band:
 This subclass is indented under subclass 242.  Subject matter wherein the external clamp comprises a wrapping of wire, string, etc.
  
[List of Patents for class 285 subclass 255]    255Wedge:
 This subclass is indented under subclass 242.  Subject matter including a wedge means in the clamp.
  
[List of Patents for class 285 subclass 256]    256Deformation:
 This subclass is indented under subclass 242.  Subject matter wherein the diameter of the external member is reduced as by metal working or deforming or the internal member is expanded, whereby the nonmetal member is held.

SEE OR SEARCH THIS CLASS, SUBCLASS:

382,for other deformed material joints.

SEE OR SEARCH CLASS:

29Metal Working,   subclasses 505+ for a process of joining by deforming.
  
[List of Patents for class 285 subclass 257]    257Bendable spur fingers:
 This subclass is indented under subclass 256.  Subject matter wherein the external clamp includes bendable spur fingers which are contracted into grasping relation with the nonmetal member upon joining.
  
[List of Patents for class 285 subclass 258]    258Expanding internal member:
 This subclass is indented under subclass 256.  Subject matter wherein the internal member is expanded.

SEE OR SEARCH CLASS:

29Metal Working,   subclass 523 for a method of expanding an internal tube.
72Metal Deforming,   appropriate subclasses 67+ , 316+ and subclass 393, for an apparatus for expanding or flanging the end of a pipe.
  
[List of Patents for class 285 subclass 259]    259Particular surface:
 This subclass is indented under subclass 242.  Subject matter wherein the internal surface of the external clamp or holder or the external surface of the internal member, or both have a particular surface or surfaces for increasing the gripping friction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

328+,for a coupling comprising a particular joint interface.
  
[List of Patents for class 285 subclass 260]    260Composite ball:
 This subclass is indented under the class definition.  Subject matter wherein each member is of flexible nonmetallic material, and the flexible characteristic is essential to the making of the joint (e.g., canvas tubing used in mine ventilation).
  
[List of Patents for class 285 subclass 261]    261BALL AND SOCKET:
 This subclass is indented under the class definition.  Devices which comprise pipe and socket members having mating spherical or curved surfaces therebetween, said pipe constituting a ball or equivalent, to permit relative free movement between the parts or angular adjustment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51,for an insulated ball and socket joint.
121.7,for ball and socket joints in concentric pipe systems.
138.1,for a ball and socket joint in a pipe or rod to pipe-to-plate system.
146.1+,for a plural serial ball and socket system.
  
[List of Patents for class 285 subclass 262]    262With internal tie means:
 This subclass is indented under subclass 261.  Devices including means, e.g., a link or rod, within the ball and socket members adapted to hold them in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

114,for a coupling with a strain relief.

SEE OR SEARCH CLASS:

403Joints and Connections,   subclasses 122+ for other ball and socket joints.
  
[List of Patents for class 285 subclass 263]    263Radially spaced spherical surfaces:
 This subclass is indented under subclass 261.  Devices comprising a plurality of spaced spherical or curved surfaces on one part coacting with a plurality of spaced surfaces on the other part, or comprising an intermediate movable spherical bearing within the socket part.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146.3,for a sphere intermediate two sockets providing plural joints.
  
[List of Patents for class 285 subclass 264]    264Oscillative:
 This subclass is indented under subclass 261.  Devices including means, e.g., trunnions on the ball member or axial slots in the socket, etc., which restricts angular motion (oscillation) between the ball and the socket member to definite axes.
  
[List of Patents for class 285 subclass 265]    265With gimbal ring:
 This subclass is indented under subclass 264.  Devices in which a ring is connected to the ball and the socket members by means of pivot pins adapted to permit pivoting of conduit members on an axis that is a diameter of the ring.
  
[List of Patents for class 285 subclass 266]    266Composite ball:
 This subclass is indented under subclass 261.  Devices in which the ball member comprises several assembled parts.
  
[List of Patents for class 285 subclass 267]    267Spring-biased packing:
 This subclass is indented under subclass 261.  Devices including a packing which is urged into sealing contact by resilient means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

348,for a separable follower in a packed joint.
375,for internal reciprocating packers in socket joints.
  
[List of Patents for class 285 subclass 268]    268Spring-biased ball:
 This subclass is indented under subclass 261.  Devices which include a resilient member, e.g., a coiled spring, which urges the ball member into contact with the socket.
  
[List of Patents for class 285 subclass 269]    269Socketed spring:
 This subclass is indented under subclass 268.  Devices wherein the spring element is positioned within the socket member.
  
[List of Patents for class 285 subclass 270]    270With separate packing actuator:
 This subclass is indented under subclass 261.  Devices including means additional to the coupling means, e.g., take up bolts in the flange of a screw thimble coupler, for transmitting sealing force to the packing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

348,for a separable packing follower in a packed joint.
  
[List of Patents for class 285 subclass 271]    271With removable ball seat:
 This subclass is indented under subclass 261.  Devices including separable elements which bear the ball member within the socket.
  
[List of Patents for class 285 subclass 272]    272SWIVEL:
 This subclass is indented under the class definition.  Devices comprising compensating means to unite the members so that one member may turn or rotate freely relative to the other at all times, whereby the strain imposed therebetween due to motion is relieved.
(1) Note. Couplings requiring loosening of a means that normally tightens the joint before strain incurred by relative movement of the members is relieved are classified according to their structural features.

SEE OR SEARCH THIS CLASS, SUBCLASS:

98,for a swivel with a fluid pressure seal.
121.3+,for a swivel in a plural concentric pipe system.
147.1+,for plural serial swivels.
184+,for an adjustable angle coupling.
272.1,for a swivel with an access opening.
283,for a coupling including a detachable hinge.

SEE OR SEARCH CLASS:

137Fluid Handling,   subclass 580 for a running joint between movable parts of a distribution system.
403Joints and Connections,   subclasses 164+ for other swivel joints.
  
[List of Patents for class 285 subclass 272.1]    272.1With access opening:
 This subclass is indented under subclass 272.  Subject matter including an opening with a closure or having one or more separable parts which permit access to the interior thereof without disassembly of the joint.
  
[List of Patents for class 285 subclass 273]    273Transverse cylinder in socket:
 This subclass is indented under subclass 272.  Devices wherein a transverse cylinder rotates upon its axis in a socket and in which a pipe section attached to the cylinder extends through a slot in the socket.
  
[List of Patents for class 285 subclass 274]    274With yoke:
 This subclass is indented under subclass 272.  Devices wherein an extending arm on one pipe section holds the other section in swivelling relationship.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127.1+,for swivel joints in which arms of a yoke constitute branch flow paths.
  
[List of Patents for class 285 subclass 275]    275Pipe in socket type:
 This subclass is indented under subclass 272.  Devices in which the end of one pipe is received in the end of another pipe and held in swivelling relationship.

SEE OR SEARCH THIS CLASS, SUBCLASS:

374+,for a packed socket. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 276]    276With ball, ring or pin detent:
 This subclass is indented under subclass 275.  Devices in which a retaining fastener comprising ball, ring, or pin detent means engages a groove in one of the pipe sections to maintain the other pipe section in rotatable engagement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

305+,for a coupling comprising a catch means essential to holding the joined members in coupled relation. See the Search Notes thereunder.
415,for a joint including a split ring as a detachable flange.
  
[List of Patents for class 285 subclass 277]    277With manipulator:
 This subclass is indented under subclass 276.  Subject matter including means for moving the fastener to latched and/or unlatched position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

308+,for a coupling with means essential to holding the members together, said means comprising a catch with a manipulator.
  
[List of Patents for class 285 subclass 278]    278With flange in socket:
 This subclass is indented under subclass 275.  Devices in which the pipe section received has a flange thereon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

98,for similar structure having a fluid pressure actuated seal.
354,for a packed screw-thimble type coupling including a flanged spigot. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 279]    279Spring-pressed flange:
 This subclass is indented under subclass 278.  Devices in which a spring exerts a force against the flanged pipe to hold it in seated position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

375,for a packed socket coupling having an internal reciprocating packer.
  
[List of Patents for class 285 subclass 280]    280Flange locked axially:
 This subclass is indented under subclass 278.  Devices in which the flanged pipe section is held within the socket against longitudinal movement.
  
[List of Patents for class 285 subclass 281]    281Packed:
 This subclass is indented under subclass 280.  Devices which include packing material.
  
[List of Patents for class 285 subclass 282]    282With rotation limits:
 This subclass is indented under subclass 272.  Subject matter including means to limit the extent of rotation.
  
[List of Patents for class 285 subclass 283]    283DETACHABLE HINGE:
 This subclass is indented under the class definition.  Subject matter comprising a detachable hinge means on one side of the pipes, whereby the pipes are pivotally connected together with or without means for holding the pipes in line flow position, generally a latch or lock means on the opposite side of the pipe.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80,for lock or latch means which are not essential to the making of the joint, but serve to prevent the disassembly of the joint.
  
[List of Patents for class 285 subclass 284.1]    284.1WITH ACCESS OPENING:
 This subclass is indented under the class definition.  Subject matter including an opening with a closure or having one or more separable parts which permit access to the interior thereof without disassembly of the joint.

SEE OR SEARCH THIS CLASS, SUBCLASS:

62+,for an access opening to permit insertion or removal of a wear element.

SEE OR SEARCH CLASS:

137Fluid Handling,   subclasses 583+ for a fluid handling system with an access opening.
138Pipes and Tubular Conduits,   subclasses 89+ for pipe closures.
220Receptacles,   subclasses 200+ for analogous closures for receptacles and of general utility.
  
[List of Patents for class 285 subclass 285.1]    285.1MOLDED JOINT:
 This subclass is indented under the class definition.  Subject matter wherein a plastic or melted material is used in the joint or wherein the ends of the members are united by fusion or by welding pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148.7,for a molded joint in a compound coupling.

SEE OR SEARCH CLASS:

228Metal Fusion Bonding,   appropriate subclasses for making a joint by metallurgically securing one meeting face to another.
249Static Molds,   subclass 89 for molding apparatus for joining pipe sections with a fluent material.
  
[List of Patents for class 285 subclass 286.1]    286.1Interlocked:
 This subclass is indented under subclass 285.1.  Subject matter including connecting means such as hooking, dovetailing, meshing, etc.
  
[List of Patents for class 285 subclass 286.2]    286.2Deformed or having additional holding means:
 This subclass is indented under subclass 286.1.  Subject matter including an additional holding means, such as distortion of the shape of one of the members after being joined.
  
[List of Patents for class 285 subclass 287.1]    287.1With root repellent:
 This subclass is indented under subclass 285.1.  Subject matter including means to inhibit or resist the growth of vegetative roots between the members.

SEE OR SEARCH THIS CLASS, SUBCLASS:

45+,for a coupling with a casing, lining or protector.

SEE OR SEARCH CLASS:

138Pipes and Tubular Conduits,   subclass 90 , for similar structure in test plug combinations.
215Bottles and Jars,   subclasses 52+ for expansible stopper type closures.
220Receptacles,   subclass 233 , for an expansible plug closure.
  
[List of Patents for class 285 subclass 288.1]    288.1Weld:
 This subclass is indented under subclass 285.1.  Subject matter wherein the pipes are united by the application of extreme heat, sometimes with pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

189+,for a welded joint between a pipe and plate, especially subclasses 201+, for a welded sput and plate connection.
416,for a flange welded to a pipe.
  
[List of Patents for class 285 subclass 288.2]    288.2Axially spaced:
 This subclass is indented under subclass 288.1.  Subject matter wherein the weld is placed in locations around the joint.
  
[List of Patents for class 285 subclass 288.3]    288.3Cold weld:
 This subclass is indented under subclass 288.1.  Subject matter wherein the weld is effected by the use of high pressure or vacuum without using heat.
  
[List of Patents for class 285 subclass 288.4]    288.4Flash weld:
 This subclass is indented under subclass 288.1.  Subject matter wherein the welding is done in discrete spots rather than a continuous bead.
  
[List of Patents for class 285 subclass 288.5]    288.5Having additional holding means:
 This subclass is indented under subclass 288.1.  Subject matter including another holding means such as a clamp, bolt, etc. to further secure the joint.
  
[List of Patents for class 285 subclass 288.6]    288.6Interlocked:
 This subclass is indented under subclass 288.5.  Subject matter including connecting means such as hooking, dovetailing, meshing, etc.
  
[List of Patents for class 285 subclass 288.7]    288.7Having disassembly feature:
 This subclass is indented under subclass 288.1.  Subject matter including the characteristic of being easily taken apart.
  
[List of Patents for class 285 subclass 288.8]    288.8Having crack arresting feature:
 This subclass is indented under subclass 288.1.  Subject matter including the characteristic of relieving the strain produced by a crack.
  
[List of Patents for class 285 subclass 288.9]    288.9Reinforced:
 This subclass is indented under subclass 288.1.  Subject matter including a reinforcement such as a sleeve welded over the joint weld.
  
[List of Patents for class 285 subclass 288.11]    288.11Having pre-formed weld ring:
 This subclass is indented under subclass 288.1.  Subject matter including placement of a pre-shaped ring along which a welding bead is laid.
  
[List of Patents for class 285 subclass 289.1]    289.1Solder:
 This subclass is indented under subclass 285.1.  Subject matter wherein the members are bonded by a melted metal (usually a tin alloy) cement.
  
[List of Patents for class 285 subclass 289.2]    289.2Having additional holding means:
 This subclass is indented under subclass 289.1.  Subject matter including another type of holding means such as a clamp, bolt, etc. in order to strengthen the joint.
  
[List of Patents for class 285 subclass 289.3]    289.3Interlocked:
 This subclass is indented under subclass 289.2.  Subject matter including connecting means such as hooking, dovetailing, meshing, etc.
  
[List of Patents for class 285 subclass 289.4]    289.4Having disassembly feature:
 This subclass is indented under subclass 289.1.  Subject matter including the characteristic of being easily taken apart.
  
[List of Patents for class 285 subclass 289.5]    289.5Having pre-placed solder:
 This subclass is indented under subclass 289.1.  Subject matter wherein the method of "tinning" is used by pre-placing the solder so that the application of heat is all that is needed to effect the bond of the joint.
  
[List of Patents for class 285 subclass 290.1]    290.1Composite pipe (ends):
 This subclass is indented under subclass 285.1.  Subject matter in which at least the ends of the members to be joined are of a composite material, such as cement, asphalt, concrete, or glass combined with other materials such as reinforcement.

SEE OR SEARCH CLASS:

138Pipes and Tubular Conduits,   subclasses 140+ for pipe structure, per se.
  
[List of Patents for class 285 subclass 290.2]    290.2Locked reinforcement:
 This subclass is indented under subclass 290.1.  Subject matter wherein the structure is strengthened by imbedding hooked stay rods, which are joined together, into the conduit.
  
[List of Patents for class 285 subclass 290.3]    290.3Interlocked with pipe end:
 This subclass is indented under subclass 290.1.  Subject matter wherein a reinforcing rod in one section of the conduit is hooked into the end of another section of conduit.
  
[List of Patents for class 285 subclass 290.4]    290.4Having additional holding means:
 This subclass is indented under subclass 290.3.  Subject matter wherein the joint is held further by a means such as a bolt or clamp, etc.
  
[List of Patents for class 285 subclass 290.5]    290.5Expansion/contraction:
 This subclass is indented under subclass 290.1.  Subject matter wherein the joint is water-tight and constructed to provide for inordinate expansion or contraction and remain water-tight.
  
[List of Patents for class 285 subclass 291.1]    291.1Having screw interlock:
 This subclass is indented under subclass 285.1.  Subject matter wherein the ends of the members are additionally held together by means having a helical thread.
  
[List of Patents for class 285 subclass 291.2]    291.2Having interrupted thread:
 This subclass is indented under subclass 291.1.  Subject matter wherein the thread is broken (non-continuous) thereby being a locking thread.
  
[List of Patents for class 285 subclass 292.1]    292.1With lug and slot interlock:
 This subclass is indented under subclass 285.1.  Subject matter wherein the members are also connected by a projection and dependent opening or groove (e.g., a bayonet joint).

SEE OR SEARCH THIS CLASS, SUBCLASS:

401,for a socket joint, comprising lug and slot means. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 293.1]    293.1Lining or cover molded to pipe end:
 This subclass is indented under subclass 285.1.  Subject matter wherein a plastic or melted material is shaped to the end of a pipe as an interior or exterior cover.
  
[List of Patents for class 285 subclass 294.1]    294.1Sleeve:
 This subclass is indented under subclass 285.1.  Subject matter which includes a short tube-like encasement.
  
[List of Patents for class 285 subclass 294.2]    294.2Wrapped:
 This subclass is indented under subclass 294.1.  Subject matter wherein the sleeve is a tape-like or wound material.
  
[List of Patents for class 285 subclass 294.3]    294.3Sprue:
 This subclass is indented under subclass 294.1.  Subject matter wherein the sleeve has an aperture for pouring the molded material.
  
[List of Patents for class 285 subclass 294.4]    294.4Having additional holding means:
 This subclass is indented under subclass 294.3.  Subject matter including another securing means such as a bolt, clamp, etc.
  
[List of Patents for class 285 subclass 295.1]    295.1With packing filler:
 This subclass is indented under subclass 285.1.  Subject matter wherein filler material (e.g., oakum) in addition to the molding or caulking material is utilized to save on the amount of molding material used.

SEE OR SEARCH THIS CLASS, SUBCLASS:

374+,for a coupling comprising a packed socket. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 295.2]    295.2Wedge ring type:
 This subclass is indented under subclass 295.1.  Subject matter wherein the filler is in the form of a ring having a tapered or triangular surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

339+,for a packed joint comprising wedge means.
  
[List of Patents for class 285 subclass 295.3]    295.3Elastomeric:
 This subclass is indented under subclass 295.1.  Subject matter wherein the filler is a polymeric or rubber-like material.
  
[List of Patents for class 285 subclass 296.1]    296.1Sprue:
 This subclass is indented under subclass 285.1.  Subject matter including an aperture or sprue for pouring the molding material into the joint.
  
[List of Patents for class 285 subclass 298]    298VARIABLE LENGTH:
 This subclass is indented under the class definition.  Subject matter wherein one member is connected to the other by an intermediate element capable of significant contraction and expansion or wherein one member projects into or telescopes with the other member and provides relative movement therebetween.

SEE OR SEARCH THIS CLASS, SUBCLASS:

32,for a threaded telescopic insertable section.
145.1+,for a joint system comprising serial relative movable diverse joints, one of which is telescopic.

SEE OR SEARCH CLASS:

220Receptacles,   subclass 8 for receptacles having telescopic sections. See the Search Notes thereunder.
248Supports,   subclasses 333+ for adjustable length suspension supports, and subclass 161 for adjustable length standards for stands.
403Joints and Connections,   subclasses 52+ for articulated members in general.
  
[List of Patents for class 285 subclass 299]    299With bellows seal:
 This subclass is indented under subclass 298.  Devices comprising a sealing means which is bellows in form.

SEE OR SEARCH THIS CLASS, SUBCLASS:

226+,for a flexible joint between rigid members comprising bellows means.
  
[List of Patents for class 285 subclass 300]    300Internal sleeve:
 This subclass is indented under subclass 299.  Subject matter including a sleeve within the bellows.
  
[List of Patents for class 285 subclass 301]    301With limit means:
 This subclass is indented under subclass 299.  Devices in which a stop element, e.g., a tie rod, restricts the extent of the bellows movement in contraction and/or expansion or both.

SEE OR SEARCH THIS CLASS, SUBCLASS:

114+,for a strain relief combined with a coupling. See the Notes thereunder.
  
[List of Patents for class 285 subclass 302]    302Telescopic with relative motion:
 This subclass is indented under subclass 298.  Subject matter adapted for reciprocation of one member in the other while maintaining a seal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

145.1+,for a telescopic joint combined with another joint.
154.1+,for beer barrel tappers which have a telescopic member.
224,for a flexible joint with means compensating for radial and longitudinal expansion.

SEE OR SEARCH CLASS:

248Supports,   subclasses 354.1+ for adjustable props or braces.
  
[List of Patents for class 285 subclass 303]    303Step adjustment:
 This subclass is indented under subclass 298.  Subject matter comprising means providing for step adjustment.
  
[List of Patents for class 285 subclass 304]    304FRICTION DETENT (E.G., BREAKAWAY TYPE):
 This subclass is indented under the class definition.  Subject matter comprising means to hold the two members in coupled relationship under normal operating forces but which will release upon application of excessive forces, e.g., a spring pressed ball in one member coacting with a groove in the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1,for safety release couplings having means to release a holding means on the application of excessive force.
345+,for a packing, which frictionally retains a member with insertion.

SEE OR SEARCH CLASS:

251Valves and Valve Actuation,   subclass 149.7 for a valved flow line section joined to another by a contact only, or friction, joint, where the act of joining operates the valve in opposition to a spring biasing it.
  
[List of Patents for class 285 subclass 305]    305ESSENTIAL CATCH:
 This subclass is indented under the class definition.  Subject matter comprising catch means essential to detachably holding the two members in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80,for a locked or sealed coupling.
81+,for auxiliary catches or latches which are not essential to the holding together of the two members, but serve to detain, block or disable the holding means.
276,for a swivel coupling with detent means.
340,for toggle ring-type wedge means in packed joints.
362,and 377, for manipulating rings for lugged pipes with rotary engagement.
403+,for socket type couplings having separable fasteners.

SEE OR SEARCH CLASS:

24Buckles, Buttons, Clasps,   etc., subclasses 123+ for a Chinese-finger- type clasp.
279Chucks or Sockets,   appropriate subclasses for detents in a tool or work holder.
292Closure Fasteners,   appropriate subclasses for catches in a closure fastener combination.
403Joints and Connections,   subclasses 326+ for joints in general comprising a biased catch or latch.
  
[List of Patents for class 285 subclass 306]    306Line pressure-responsive:
 This subclass is indented under subclass 305.  Subject matter including catch means responsive to the line pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

83,for line pressure responsive auxiliary latch means.
102,and 104+, for similar means combined with a fluid pressure seal.

SEE OR SEARCH CLASS:

166Wells,   subclasses 55.4+ for devices which perforate or split well tubing by explosive means, and subclass 212 for a fluid pressure actuated expansible anchor.
251Valves and Valve Actuation,   subclass 94 for fluid pressure biased latches in valve actuator combinations.
294Handling: Hand and Hoist-Line Implements,   subclasses 86.24+ for expanding grapples adapted for use in a well bore, and subclasses 93+ for expanding grapples of general utility.
  
[List of Patents for class 285 subclass 307]    307Operated by conduit motion:
 This subclass is indented under subclass 305.  Subject matter including means to release the catch by conduit motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6,for similar structure in irrigation-type joints.

SEE OR SEARCH CLASS:

137Fluid Handling,   subclasses 614+ for valved, separable, flow line sections wherein the joining is usually effected by relative motion between the sections.
251Valves and Valve Actuation,   subclass 89.5 and 149+ for separable flow line sections, one of which is valved, the joining usually being effected by relative motion between the sections.
  
[List of Patents for class 285 subclass 308]    308With manipulator:
 This subclass is indented under subclass 305.  Subject matter including means to operate the catch.

SEE OR SEARCH CLASS:

403Joints and Connections,   subclasses 321+ for other joints involving a manipulatable latch.
  
[List of Patents for class 285 subclass 309]    309With means to increase contact pressure (e.g., tightener):
 This subclass is indented under subclass 308.  Subject matter comprising means to draw the ends of the coupled members toward each other.
  
[List of Patents for class 285 subclass 310]    310Separate actuator:
 This subclass is indented under subclass 309.  Subject matter requiring separate actuation of an independent tightening means or the movement of the latch manipulator other than that required for the operation of the latch.

SEE OR SEARCH THIS CLASS, SUBCLASS:

123.11,for slip actuators for slips used to anchor an inner tubular member within an outer tubular member.
  
[List of Patents for class 285 subclass 311]    311Dead center lever systems (self-locking):
 This subclass is indented under subclass 309.  Subject matter comprising a lever system that is self-locking in that a pivotal connection passes dead center.

SEE OR SEARCH CLASS:

24Buckles, Buttons, Clasps,   etc., subclasses 270+ for self-locking tighteners in hose clamps.
  
[List of Patents for class 285 subclass 312]    312Cam lever:
 This subclass is indented under subclass 309.  Subject matter comprising a cam-lever.
  
[List of Patents for class 285 subclass 313]    313Restrainer for manipulator:
 This subclass is indented under subclass 308.  Subject matter including means to releasably hold the catch manipulator in selected position.
  
[List of Patents for class 285 subclass 314]    314Cam sleeve:
 This subclass is indented under subclass 308.  Subject matter comprising sleeve means with cam surfaces which manipulate the catch.
  
[List of Patents for class 285 subclass 315]    315Reciprocating sleeve:
 This subclass is indented under subclass 314.  Subject matter wherein the sleeve reciprocates.
  
[List of Patents for class 285 subclass 316]    316Spring-biased sleeve:
 This subclass is indented under subclass 315.  Subject matter including spring means to bias the sleeve.
  
[List of Patents for class 285 subclass 317]    317Spring-biased catch:
 This subclass is indented under subclass 308.  Subject matter wherein the catch is spring biased.
  
[List of Patents for class 285 subclass 318]    318Coil spring:
 This subclass is indented under subclass 305.  Subject matter comprising a contractible coil in a sleeve or socket that grip a spigot therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

244,for a spring hose clamp.
  
[List of Patents for class 285 subclass 319]    319Leaf spring:
 This subclass is indented under subclass 305.  Subject matter wherein the catch means comprises a leaf spring.
  
[List of Patents for class 285 subclass 320]    320Pivoted:
 This subclass is indented under subclass 305.  Subject matter wherein the catch means is mounted to pivot to and from engaging position.

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248Supports,   subclasses 354.1+ for a pivoted locking plate in an adjustable prop or brace.
279Chucks or Sockets,   subclass 77 for pivoted or rotary detent in chucks.
403Joints or Connections,   subclasses 52+ for a pivoted locking plate in an adjustable length type rod joint.
  
[List of Patents for class 285 subclass 321]    321Resilient ring:
 This subclass is indented under subclass 305.  Subject matter comprising an annular spring means carried by one member, said means coacting with a projection or groove on the other member upon change in shape or diameter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

276,for a swiveled pipe in socket joint including a resilient retainer ring.
340,for a packed coupling with a toggle ring-type wedge means.
  
[List of Patents for class 285 subclass 322]    322MOVABLE JAW (E.G., CONTRACTIBLE SOCKET):
 This subclass is indented under the class definition.  Subject matter wherein the joint comprises a movable jaw member (e.g., a split socket or spigot) which is contracted or expanded by an external clamp or screw thimble, etc., to fasten the members together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34,for a quick release joint comprising radially moved segmented threads.
243,for a movable jaw in a nonmetal-to-metal joint.
382,for a joint obtained by deforming material of one or both members and see the Search Notes thereunder.

SEE OR SEARCH CLASS:

24Buckles, Buttons, Clasps,   etc., subclasses 588+ for head and socket separable fasteners.
279Chucks or Sockets,   subclass 42 , 43, and 43.1+ for split sockets, and subclasses 46.1+ for spring jaws.
  
[List of Patents for class 285 subclass 323]    323Wedge bushing:
 This subclass is indented under subclass 322.  Subject matter including a bushing with a wedge shaped cross-section whereby the jaw portion is moved.

SEE OR SEARCH THIS CLASS, SUBCLASS:

339+,for a packed joint with wedge means.
421,for a joint having clamp means comprising wedge means.
  
[List of Patents for class 285 subclass 324]    324Reducing bushing:
 This subclass is indented under subclass 322.  Subject matter comprising an intermediate member or members in the socket to adapt the socket to a smaller pipe.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148.23+,for a reducing coupler, comprising serial diverse joints.
  
[List of Patents for class 285 subclass 325]    325SIDE SLIDE:
 This subclass is indented under the class definition.  Subject matter comprising means whereby the members can be coupled only by lateral movement, e.g., socket with an inwardly extending flange at its outer end provided with a transverse opening in the socket large enough to take a spigot with an outwardly extending flange, which flange is too large to enter endwise in the socket.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67,for duplicate end side slide couplings.
103,for fluid pressure sealed joints with piston type reactors and side slide connecting means.
  
[List of Patents for class 285 subclass 326]    326Clamping lever:
 This subclass is indented under subclass 325.  Subject matter comprising lever means for tightening the joint or holding the parts in position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

270,for a ball and socket joint with a separate packing actuator.
309+,for an essential catch with a tightener.
  
[List of Patents for class 285 subclass 327]    327Screw-thimble tightener:
 This subclass is indented under subclass 325.  Subject matter comprising a screw thimble tightener. See the Search Notes under subclass 326.
  
[List of Patents for class 285 subclass 328]    328PARTICULAR INTERFACE:
 This subclass is indented under the class definition.  Subject matter wherein the free ends of the members, which constitute the joint interface, are so constructed that the particular configuration of one requires a particular configuration in the other and/or the particular interfaces cooperate to produce some unexpected result.

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65+,for a duplicate end coupling (e.g., train line type).
148.19+,for diverse interfaces in serial diverse joints.
259,for a nonmetal-to-metal coupling having a particular surface means for increasing friction between the members.
  
[List of Patents for class 285 subclass 329]    329Diverse metal:
 This subclass is indented under subclass 328.  Devices wherein the free ends, which constitute the joint interface, are of different material, as in the provision of a brass or other metal seat on one of two iron tubes to be joined in order to prevent corrosion.

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47+,for an insulated joint.
148.11+,for serial diverse joints with diverse materials.
238+,for a coupling between a nonmetal and metal member.
378,for a diverse metal gasket-seat.
422+,for a coupling distinguished by the material thereof.
  
[List of Patents for class 285 subclass 330]    330Interlocked or overlapped:
 This subclass is indented under subclass 328.  Devices wherein the free ends are provided with interengaging elements (e.g., tongue and groove, etc.) or are keyed together to prevent relative rotation therebetween.

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148.5,for an intermediate joint with expansible spigots in a serial diverse joint system.
202+,for an interlocked sput and plate joint.
291.1,for molded joint with screw interlock.
  
[List of Patents for class 285 subclass 331]    331Annular socket:
 This subclass is indented under subclass 328.  Subject matter wherein the joint interface of one member comprises an annular socket or recess means for the reception of a distinct intermediate annular projection on the other member.

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336,for supplemental packing sockets for joints with an annular socket in each member with cooperating gasket therebetween.

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403Joints and Connections,   subclass 332 for other joints involving an annular recess.
  
[List of Patents for class 285 subclass 332]    332Tapered:
 This subclass is indented under subclass 328.  Subject matter wherein the interface includes a conically or conoidally tapered free end portion on one of the members.

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238+,for nonmetal to metal connections with a conical taper at an interface.
331,for devices wherein a projection on one member extends into an annular socket in the other member and wherein the contact between said projection and socket may be on a conical taper.

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403Joints and Connections,   subclasses 334+ for other joints involving a tapered interface.
  
[List of Patents for class 285 subclass 332.1]    332.1Conoidal:
 This subclass is indented under subclass 332.  Devices wherein the interface is composed of mating curved surfaces on each member generated by a curve having the same loci and length of the radii thereof and rotating about its sine as an axis.

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261+,for joints wherein the interface is a ball and socket.
  
[List of Patents for class 285 subclass 332.2]    332.2Packed:
 This subclass is indented under subclass 332.  Devices wherein a sealing means is located on the interface of one of the members or is located at an axial end of the taper of either of the members for direct engagement by the other member. The sealing means may be a separate element or means formed by deformation of a member during coupling.
  
[List of Patents for class 285 subclass 332.3]    332.3Interface:
 This subclass is indented under subclass 332.2.  Devices having the sealing means between the members and intermediate the ends of the taper.

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334.3,for devices wherein an elastomeric member forms a seat for reception of the other member.
  
[List of Patents for class 285 subclass 332.4]    332.4Discontinuous interface surface:
 This subclass is indented under subclass 332.  Devices wherein the surface of the interface of at least one member is interrupted to cause an irregularity therein.

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332.2+,for devices having a packing carried by a groove in an interface.
  
[List of Patents for class 285 subclass 333]    333Threaded (e.g., drill pipe type):
 This subclass is indented under subclass 332.4.  Subject matter comprising a threaded portion generally on the tapered surfaces, e.g., pin and box drill pipe couplings.

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36,for pin and box drill couplings with attached thread jamming preventers.
  
[List of Patents for class 285 subclass 334]    334Flat crest:
 This subclass is indented under subclass 333.  Subject matter wherein the threads are flat crested, e.g., square or acme.
  
[List of Patents for class 285 subclass 334.1]    334.1Adapter seat:
 This subclass is indented under subclass 332.  Devices including a separate element, other than a mere packing, shaped to form the interface between the members which are held in coupled relation by other means.

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332.2+,for a joint having a packed tapered interface.
  
[List of Patents for class 285 subclass 334.2]    334.2Double-tapered internal sleeve:
 This subclass is indented under subclass 334.1.  Devices wherein the separate element is a short nipple which has each end tapered to mate with a taper in each of the members.
  
[List of Patents for class 285 subclass 334.3]    334.3Elastomeric:
 This subclass is indented under subclass 334.1.  Devices wherein the separate member is composed of a rubber or rubber-like substance, or a substance having substantially the physical properties of rubber.
  
[List of Patents for class 285 subclass 334.4]    334.4Dissimilar:
 This subclass is indented under subclass 332.  Devices wherein the tapers of each of the interfitting members are of a different angle, or a nontapered member engages a tapered member, or the members each terminate in convexly curved surfaces.

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148.19+,for serial diverse joints having diverse coupling interfaces.
  
[List of Patents for class 285 subclass 334.5]    334.5Flared:
 This subclass is indented under subclass 332.  Devices wherein the end of one of the members has thereon a deformation occasioned by movement of its wall either inwardly or outwardly of its axis.
  
[List of Patents for class 285 subclass 335]    335PACKED:
 This subclass is indented under the class definition.  Subject matter including packing means to prevent leakage.
(1) Note. Search the appropriate special joint subclass for a joint having a packing limited in use thereto; e.g., see the search notes below for a ball and socket.

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10+,for a joint with a liquid seal.
95+,for a joint comprising sealing means responsive to line pressure.
187+,for a joint with means responsive to temperature change to maintain the seal.
261,for a ball and socket.

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277Seal for a Joint or Juncture,   for a seal between two pipes or a pipe and a wall that are at most secured together only by friction between the seal and the pipe or wall, subclasses 602+ for a static contact seal intended for use on a pipe, conduit, or cable.
403Joints and Connections,   subclasses 288+ , for other packed joints.
  
[List of Patents for class 285 subclass 336]    336With cooperating opposed packing grooves:
 This subclass is indented under subclass 335.  Subject matter wherein each of the adjacent faces of the members to be joined is provided with an annular, equi-radial groove for the mutual reception of a packing element.

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349+,for a supplemental packing socket in a socket joint.
  
[List of Patents for class 285 subclass 337]    337Externally with clamp:
 This subclass is indented under subclass 335.  Subject matter wherein an overlapped portion of a joint is covered by packing entirely external of the joined members and a clamp or collar compresses the external packing.

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148.6+,for compound joints which may include an externally packed joint.
364+,for packed flange joints with clamping means.
413,for clamping rings, per se, for pipe joints.
  
[List of Patents for class 285 subclass 338]    338Radially expansible, spigot-carried:
 This subclass is indented under subclass 335.  Subject matter including a spigot carried packing with means to expand the packing into sealing relationship with a surrounding member.

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95+,for fluid pressure expanded packings.
140.1,for an expanding spigot in a pipe-to-pipe-to-plate joint system.
148.5,for an intermediate joint with expansible spigots.
196,for an expansible spigot carried packing in an end to side or plate joint.
322,for a coupling including a movable jaw portion on the spigot or bell.
339+,for couplings with wedge controlled packings.
346,for packing expanding means in a coupling providing frictional retention with insertion.
348,for couplings including a separable follower between the tightener and packing.
356+,for a packed coupling with a screw gland.

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138Pipes and Tubular Conduits,   subclass 90 for similar structure in test plug combination.
215Bottles and Jars,   subclasses 358+ for expansible stopper type closures.
220Receptacles,   subclass 233 for an expansible plug closure.
  
[List of Patents for class 285 subclass 339]    339Wedge:
 This subclass is indented under subclass 335.  Subject matter comprising wedge means to control the positioning or shape of the packing or which itself prevents leakage.
(1) Note. These are mostly wedge rings which are contracted into gripping relation (by pushing, compressing, etc) with a pipe member to thereby provide a flange equivalent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3,for a coupling including a wedge having a frangible connection to the compressor (e.g., screw thimble).
104+,for pipe grasping wedge rings in a coupling with a fluid pressure sealing means.
232,for conduit grasping means in a flexible joint between rigid members.
249,for a wedge ring in nonmetal to metal couplings.
295.2,for a wedge ring-type packing filler in a molded joint.
323,for a wedge bushing in a movable jaw coupling.
  
[List of Patents for class 285 subclass 340]    340Toggle ring type:
 This subclass is indented under subclass 339.  Subject matter comprising one or more annular wedge members of relatively thin material with the edge of the central bore offset laterally with respect to the outer edge, whereby a force applied parallel to the axis of the bore will cause reduction of the effective diameter of the central bore.

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321,for a coupling having a resilient ring type essential catch.
  
[List of Patents for class 285 subclass 341]    341Double wedge surfaces:
 This subclass is indented under subclass 339.  Subject matter including two or more pairs of coacting wedge surfaces so disposed that the planes thereof will intersect upon extension thereof, whereby mating engagement is obtained when one wedge surface is pushed toward the other.

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342,for a single set of wedge surfaces which mate when pushed together.
  
[List of Patents for class 285 subclass 342]    342Pushed:
 This subclass is indented under subclass 339.  Subject matter wherein the wedge means is pushed by an external pressure means into mating engagement with a cooperating wedge surface.

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341,for double wedge surfaces.
  
[List of Patents for class 285 subclass 343]    343Compressed:
 This subclass is indented under subclass 339.  Subject matter including a pressure means having a flared wedging surface surrounding a stationary wedge whereby the wedge is compressed radially inward.
  
[List of Patents for class 285 subclass 344]    344"Rolled-in" gasket:
 This subclass is indented under subclass 335.  Subject matter comprising a ring shaped gasket substantially circular in cross section which is rolled into and deformed in the gasket recess by endwise movement of the male and female members.
  
[List of Patents for class 285 subclass 345]    345Frictional retention upon insertion:
 This subclass is indented under subclass 335.  Subject matter in which a packing element fixed in a female member grips the male member to connect the members, as where the aperture in the packing is of smaller diameter than external diameter of the male member and the resilience of the packing holds the male after its insertion.

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8,for faucet type couplings, many of which are of the slip on kind.
304,for a coupling with a friction type detent.
  
[List of Patents for class 285 subclass 346]    346With packing-expanding means:
 This subclass is indented under subclass 345.  Subject matter including means for compressing the packing and further reducing the aperture diameter to better grip the male.

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338,for a coupling with a spigot carried, radially expansible packing. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 347]    347Carried on cylindrical shank:
 This subclass is indented under subclass 335.  Devices wherein one of the members has a cylindrical portion or shank extending axially beyond a shouldered portion and means to retain the packing on the shank.

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302,for a telescopic spigot which carries a gasket.
332,for tapered interface type spigot carrying a tapered gasket as part thereof.
338,for a radially expansible packing carried on a spigot. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 348]    348With separable follower:
 This subclass is indented under subclass 335.  Devices wherein the sealing means is provided with a separable follower means which transmits pressure from the tightening means to the sealing means.

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270,for a separate packing actuator in a ball and socket joint.
338,for a spigot carried radially expansible packing.
  
[List of Patents for class 285 subclass 349]    349Supplemental packing socket:
 This subclass is indented under subclass 335.  Subject matter wherein the packing means is carried in a recess or auxiliary socket in a socket member.

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331,for an annular socket-type coupling interface.
336,for cooperating opposed packing grooves.
374+,for a packed socket-type joint.
  
[List of Patents for class 285 subclass 350]    350Extrusion recess:
 This subclass is indented under subclass 349.  Subject matter wherein the packing socket includes an auxiliary recess into which the gasket may cold-flow upon tightening of the joint.
  
[List of Patents for class 285 subclass 351]    351Plural seals:
 This subclass is indented under subclass 335.  Subject matter comprising two or more means to seal a single joint.

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95+,for a fluid pressure responsive seal in combination with other sealing means.
148.6+,for compound joints.
  
[List of Patents for class 285 subclass 352]    352Coacting opposed duplicates:
 This subclass is indented under subclass 351.  Subject matter comprising duplicate gasket means between the free ends of the coupled members in coacting opposed relation.

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65+,for couplings comprising identical halves.
99,for fluid pressure seals of this type.
328+,for a particular interface between the coacting free ends of the coupled members.
336,for cooperating, opposed packing grooves.
  
[List of Patents for class 285 subclass 353]    353Screw thimble-gland:
 This subclass is indented under subclass 335.  Structure comprising means to hold the members together including a separate gland portion threaded into a separate thimble portion, both the gland and thimble being separate from either member to be joined.
  
[List of Patents for class 285 subclass 354]    354Screw thimble:
 This subclass is indented under subclass 335.  Devices including means to hold the members together, said means comprising an external sleeve having an internally threaded portion on one end to engage threads on one of the members and an inwardly extending flange or equivalent at the other end for sliding engagement with a flange or equivalent on the second member.

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52,for an insulated screw-thimble coupling.
386+,for an unpacked screw-thimble coupling.
  
[List of Patents for class 285 subclass 355]    355Screw:
 This subclass is indented under subclass 335.  Subject matter comprising screw threads at the coupling interface.

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148.19+,for differential screw threads.
328+,for a particular interface, especially subclasses 333+ for a threaded conically tapered interface.
390+,for unpacked screw couplings.
  
[List of Patents for class 285 subclass 356]    356Gland:
 This subclass is indented under subclass 335.  Devices wherein the packing is compressed or forced into sealing position by a gland. A gland is limited here to a follower combined (e.g., integral) with a force transmitting means (e.g., threads) or a part thereof.

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212,for a screw compressed countersunk packing in a pipe-to-plate joint.
231,for a socketed packing-type flexible joint between rigid members.
339+,for packings compressed by wedging action.
  
[List of Patents for class 285 subclass 357]    357Threaded:
 This subclass is indented under subclass 356.  Subject matter comprising internally and externally threaded force transmitting means.
  
[List of Patents for class 285 subclass 358]    358Cam:
 This subclass is indented under subclass 335.  Subject matter comprising a rotatable element having a groove or surface for imparting reciprocatory or oscillatory motion to a follower to draw the members together to force the packing into sealing position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

394+,for an unpacked coupling with a tightener comprising cam means.
  
[List of Patents for class 285 subclass 359]    359Thimble:
 This subclass is indented under subclass 358.  Subject matter comprising an external sleeve having an inwardly extending flange or equivalent on one end for sliding engagement with a flange or equivalent on one member and an internally extending cam means on the other end to engage a follower portion on the other member.

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354+,for a packed screw thimble coupling.
386+,for an unpacked screw thimble coupling.
395,for an unpacked cam thimble coupling.
  
[List of Patents for class 285 subclass 360]    360Lugged pipe, rotary engagement:
 This subclass is indented under subclass 358.  Subject matter wherein one member has a lateral projection adapted to engage a projection or recess in the other member when rotated on its axis to hold the members in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

73,for duplicate end couplings having rotary engagement.
307,for a coupling with an essential catch operated by conduit motion.
376+,and 401+, for similar structure except for the cam surfaces.
391+,for interrupted thread-type couplings.
  
[List of Patents for class 285 subclass 361]    361Bayonet slot:
 This subclass is indented under subclass 360.  Subject matter comprising a slot with longitudinal and circumferential components and providing a cam track for the cooperating lug to draw the members together.

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396,for an unpacked joint including a bayonet type cam means.
402,for a bayonet slot and means lugged pipe in a socket joint.
  
[List of Patents for class 285 subclass 362]    362With manipulating ring:
 This subclass is indented under subclass 360.  Subject matter wherein one of the members has a rotatable ring mounted thereon, the ring carrying the projection or recess, whereby the coupling is effected by rotation of the ring.

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377,for similar structure except for cam means.
  
[List of Patents for class 285 subclass 363]    363Flanged pipe:
 This subclass is indented under subclass 335.  Devices wherein at least the free end of one of the members has a transverse shoulder, flange, or flange portion utilized in making the joint.

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405+,for a flanged joint, per se. See the Search Notes thereunder.

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137Fluid Handling,   subclass 15.09 for a process of cleaning, repairing, or assembling by securing, replacing, or servicing a particular pipe joint.
  
[List of Patents for class 285 subclass 364]    364Clamped:
 This subclass is indented under subclass 363.  Devices comprising bands, straps, clips, etc., which grip the flanges externally to hold or to hold and draw the pipe ends together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148.6+,for a compound joint, which may include an external packing and a compressor of this type.
337,for an external packing with a clamp type compressor.
400,for a flange joint comprising at least one separable ring mounted on one member of a socket joint.
406+,for clamped flange joint, per se. See the Search Notes thereunder.

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215Bottles and Jars,   subclasses 280+ for a clamp which secures a closure to a receptacle of the type there provided for.
  
[List of Patents for class 285 subclass 365]    365Band type:
 This subclass is indented under subclass 364.  Devices comprising a band or ring which circumferentially grips the flanges to bring the pipe ends together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

407+,for a band clamped flange joint, per se and see the search notes thereunder.
  
[List of Patents for class 285 subclass 366]    366Screw:
 This subclass is indented under subclass 365.  Devices in which a bolt or screw is used to tighten the clamping band.

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410+,for similar devices without packing.
  
[List of Patents for class 285 subclass 367]    367Tangential:
 This subclass is indented under subclass 366.  Devices in which the screw or bolt lies at a tangent to the clamping band circumference.
  
[List of Patents for class 285 subclass 368]    368Axially bolted:
 This subclass is indented under subclass 364.  Devices in which the clamping means comprises at least one separable plate-like pipe receiving ring coacting with a flange and having bolts lying parallel to its axis for producing axial forces to draw the flanges together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

412,for a similar unpacked joint.
413,for the clamping ring, per se.
  
[List of Patents for class 285 subclass 369]    369Sleeve:
 This subclass is indented under subclass 335.  Subject matter comprising a short tubular section extending between and each end thereof providing an overlapping portion with engaging pipe ends.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53,for an insulated sleeve joint.
66,for an intermediate sleeve in a duplicate end coupling.
294.1+,for a molded joint including a sleeve.
383,for distinct spaced serial joints.
407+,for a flanged joint with a band type clamp. See the Search Notes thereunder.
417+,for a sleeve joint, per se.
  
[List of Patents for class 285 subclass 370]    370Internal:
 This subclass is indented under subclass 369.  Devices in which the tubular section is inserted into the ends of the pipe ends.

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397,for an unpacked sleeve. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 371]    371With external:
 This subclass is indented under subclass 370.  Subject matter also including an external tubular section overlapping the engaging pipe ends.
  
[List of Patents for class 285 subclass 372]    372Dependent:
 This subclass is indented under subclass 369.  Subject matter including a common means in the means holding the pipe ends in the sleeve ends, whereby both pipe ends are released upon removal or release of the common means.

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174Electricity: Conductors and Insulators,   subclass 92 for conduit, cable or conductor joints including longitudinally divided joint casings.
  
[List of Patents for class 285 subclass 373]    373Longitudinally divided:
 This subclass is indented under subclass 372.  Subject matter comprising a sleeve split lengthwise.
  
[List of Patents for class 285 subclass 374]    374Socket:
 This subclass is indented under subclass 335.  Subject matter comprising a hollow part or cavity involving an internal wall structure of one member which receives a male portion (e.g., spigot) of the other member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54,for an insulated socket.
56+,for a floor supported water closet type joint including a socket.
121.7,for plural, concentric ball and socket joints.
138.1,for a ball and socket joint in a pipe or rod-to-pipe-to-plate joint system.
146.1+,for plural serial ball and sockets.
231+,for a socketed packing type flexible joint between rigid members.
239+,for nonmetal-to-metal joints including an internal member.
260,for a socket joint between pliable-nonmetal members.
261+,for ball and socket joints.
275+,for a pipe in socket swivel joint.
285.1+,for a molded joint including a socket.
295.1+,for a socketed packing filler in a molded joint.
302,for a telescopic socket joint.
322+,for a contractible socket.
331,for an annular socket and spigot interface.
336,for opposed, mating packing grooves.
349+,for a socket joint with a supplemental packing recess.
399+,for an unpacked socket joint. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 375]    375Internal reciprocating packer:
 This subclass is indented under subclass 374.  Subject matter including internal reciprocating means coacting with the sealing means to perfect the seal.

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101+,for line fluid actuated reciprocating packers.
267,for a resiliently urged packing means in a ball and socket joint.
279,for a spring biased flange in a socket type swivel coupling.
  
[List of Patents for class 285 subclass 376]    376Lugged pipe, rotary engagement:
 This subclass is indented under subclass 374.  Subject matter wherein one member has a lateral projection adapted to engage a projection or recess in the other member when rotated to hold the members in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

401+,for similar structure without packing, and see the Search Notes thereunder.
  
[List of Patents for class 285 subclass 377]    377With manipulating ring:
 This subclass is indented under subclass 376.  Subject matter wherein one of the members has a rotatable ring mounted thereon, the ring carrying the projection or recess, whereby the coupling is effected by rotation of the ring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

362,for similar structure including a cam means for drawing the members together.
387+,for a removable screw thimble.
  
[List of Patents for class 285 subclass 378]    378Diverse metal seat:
 This subclass is indented under subclass 335.  Subject matter including a bushing or washer of a material diverse from the material of the head and upon which the gasket seats, generally to prevent rusting of the seat with resultant loss of sealing.

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329,for a particular interface of diverse metal.
  
[List of Patents for class 285 subclass 379]    379Gasket retainer:
 This subclass is indented under subclass 335.  Subject matter comprising means to hold the gasket in a part of the joint when the joint is unassembled.

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108,for retaining means for fluid pressure seals.
  
[List of Patents for class 285 subclass 380]    380Resilient stud:
 This subclass is indented under subclass 379.  Subject matter wherein the means comprises a resilient stud which engages a socket type recess in the coupling.

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24Buckles, Buttons, Clasps,   etc., subclasses 614+ for a resilient head in a head and socket separable fastener.
  
[List of Patents for class 285 subclass 381.1]    381.1TEMPERATURE RESPONSIVE JOINT ELEMENT; E.G., SHRUNK FIT:
 This subclass is indented under the class definition.  Subject matter in which at least one of the joint elements is capable of changing configuration as a result of temperature modification.
(1) Note. Temperature modification includes either raising or lowering the temperature of the joint elements from their local ambient temperature either prior to or after assembly of the joint elements. The change in temperature is accompanied by a change in one or more joint elements to its `remembered" shape. After the change in shape, the joint is usually permitted (but is not required) to return to ambient temperature.

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29Metal Working,   subclass 447 for assembly or joining by shrink-fit means.
403Joints and Connectors,   subclass 273 for shrink-fit connectors.
  
[List of Patents for class 285 subclass 381.2]    381.2Memory metal element:
 This subclass is indented under subclass 381.1.  Subject matter in which there is at least one joint element capable of changing configuration as a result of temperature modification is comprised of a metallic alloy which is able to change from one configuration to another that is far in excess of mere thermal expansion or contraction due to the applied temperature modification.

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148Metal Treatment,   subclass 402 , 563, 675, and Digest 109 for materials with mechanical memory.
604Surgery,   subclass 281 for shape retaining memory elements.
606Surgery,   subclass 78 for shape memory alloys which are bio-compatible.
  
[List of Patents for class 285 subclass 381.3]    381.3Having intermediate member:
 This subclass is indented under subclass 381.2.  Subject matter in which there is at least one additional element inserted between a memory metal element and the remaining joint structure.
(1) Note. The intermediate member normally functions in a manner to enhance the strength of the joint.
  
[List of Patents for class 285 subclass 381.4]    381.4Memory plastic element:
 This subclass is indented under subclass 381.1.  Subject matter having at least one joint element formed from one of several materials commonly referred to as a plastic which demonstrates the capability to change from one configuration to another that is far in excess of mere thermal expansion or contraction due to the applied temperature modification.

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423,for joint elements formed from non-metallic material.

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156Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclass 86 for methods of shrinking a lamina around a cylindrical object.
174Electricity, Conductors and Insulators,   Digest 8 for heat shrinkable tubes.
264Plastic and Nonmetallic Article Shaping or Treating Processes,   subclass 230 for methods of shaping by release of elastic memory and subclass 342 for treating articles to have a retained memory configuration.
428Stock Material or Miscellaneous Articles,   subclass 34.9 and 913 for memory materials which are responsive to heat or light.
  
[List of Patents for class 285 subclass 381.5]    381.5Having intermediate member:
 This subclass is indented under subclass 381.4.  Subject matter in which there is at least one additional element inserted between a memory plastic element and the remaining joint structure.
(1) Note. The intermediate member normally functions in a manner to enhance the strength of the joint.
  
[List of Patents for class 285 subclass 382]    382DEFORMED:
 This subclass is indented under the class definition.  Subject matter wherein the joint is obtained by deforming the material of one or both members.

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40,for devices which deform one member into thread means.
202+,for sput and plate portions interlocked by deformation.
214,for means expanding a thimble in a pipe-to-plate joint.
222,for a pipe-to-plate joint united by an expanded or swaged pipe.
256+,for a nonmetal-to-metal joint with an external clamp and involving deformation of one of the elements of the joint.

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29Metal Working,   subclasses 505+ for the process of joining by deforming and see the Search Notes thereunder.
403Joints and Connections,   subclasses 274+ for joints in general formed by deforming members in situ.
  
[List of Patents for class 285 subclass 382.1]    382.1Both members:
 This subclass is indented under subclass 382.  Subject matter wherein both members forming the joint are deformed.
  
[List of Patents for class 285 subclass 382.2]    382.2Simultaneous:
 This subclass is indented under subclass 382.1.  Subject matter wherein both members are deformed at the same time to make a joint.
  
[List of Patents for class 285 subclass 382.4]    382.4Outwardly expanded:
 This subclass is indented under subclass 382.  Subject matter wherein one of the members has both its inner and outer wall periphery enlarged.

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334.5,for couplings having a conical taper interface wherein one of the members has an outwardly or inwardly projecting flare formed on an end thereof.
  
[List of Patents for class 285 subclass 382.5]    382.5Bulged:
 This subclass is indented under subclass 382.4.  Subject matter wherein a radially outwardly projecting reentrant curve is formed in the wall of one of the members, without material change in the wall thickness thereof.
  
[List of Patents for class 285 subclass 382.7]    382.7By separate deformable element:
 This subclass is indented under subclass 382.  Subject matter wherein an element distinct form the members of the coupling is deformed to cause deformation of one of the members.
  
[List of Patents for class 285 subclass 383]    383DISTINCT SPACED SERIAL:
 This subclass is indented under the class definition.  Subject matter comprising a short intermediate coupling piece providing a flow portion and distinct independent socket elements at each end.

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148.1+,for serial diverse joints.
369+,for packed sleeve joints.
374+,for packed socket joints.
399+,for socket joints and see the note thereunder.

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403Joints and Connections,   subclasses 300+ for two members joined by a distinct coupler.
  
[List of Patents for class 285 subclass 384]    384SCREW THIMBLE-GLAND:
 This subclass is indented under the class definition.  Devices comprising means to hold the members together including a gland portion threaded into a thimble portion.

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353,for a packed screw thimble gland coupling.
  
[List of Patents for class 285 subclass 385]    385Wedge:
 This subclass is indented under subclass 384.  Subject matter including wedge means, generally a tapered ring, forced between the members being joined.

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389,for a coupling comprising a screw thimble and wedge.
  
[List of Patents for class 285 subclass 386]    386SCREW THIMBLE:
 This subclass is indented under the class definition.  Devices including means to hold the members together, said means comprising an external sleeve having an internally threaded portion on one end to engage threads on one of the members and an inwardly extending flange or equivalent at the other end for sliding engagement with a flange or equivalent on the second member.

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354,for a packed joint with screw thimble means.
395,for a cam thimble type joint.

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251Valves and Valve Actuation,   subclass 149.4 for a valved pipe joint of the screw thimble type.
403Joints and Connections,   subclasses 342+ for a rod joint involving a screw thimble.
  
[List of Patents for class 285 subclass 387]    387Removable:
 This subclass is indented under subclass 386.  Devices having means (e.g., cooperating flange segments) or structure which permits the removal of the thimble portion over the flanged portion of the second member.

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401+,for a pipe and socket joint having cooperating flange segments to hold the members together. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 388]    388Detachable flange:
 This subclass is indented under subclass 387.  Devices in which the flange on the member or on the thimble is a separable part.
  
[List of Patents for class 285 subclass 389]    389Wedge:
 This subclass is indented under subclass 386.  Subject matter including wedge means, generally ring type, forced between the members being joined by the screw thimble.

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339+,for a coupling comprising wedged packing.
385,for wedges in a screw thimble gland joint.
  
[List of Patents for class 285 subclass 390]    390SCREW:
 This subclass is indented under the class definition.  Subject matter comprising screw threads at the coupling interface.

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33+,for a threaded joint with means to provide quick release.
40,for a joint with combined thread cutting means.
148.19+,for differential threads.
291.1+,for a screw interlock in a molded joint.
333,for a threaded conical interface.
355,for a packed screw-type joint.

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279Chucks or Sockets,   subclass 99 for analogous threaded connection between a chuck and tool.
403Joints and Connections,   subclass 343 for an analogous connection between rods.
  
[List of Patents for class 285 subclass 391]    391Interrupted thread:
 This subclass is indented under subclass 390.  Devices in which only circumferentially spaced segments of the connecting members are threaded thereby allowing all the threads to be engaged simultaneously and tightened by less than a full turn of a member.

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34,for a quick release coupling having radially moved segmented threads (e.g., chuck type).
396,for a coupling with bayonet type cams.
  
[List of Patents for class 285 subclass 392]    392Attached thread bushing:
 This subclass is indented under subclass 390.  Subject matter comprising an intermediate member on each pipe end, generally internally and externally screw threaded, with which the coupling means, e.g., sleeve, coacts.
  
[List of Patents for class 285 subclass 393]    393Gland:
 This subclass is indented under subclass 390.  Subject matter comprising an externally threaded sleeve engaging an internally threaded socket on one member with a relationship therebetween that the sleeve is contracted to or a separate grasping member is contracted upon tightening the threaded joint to cause the grasping of the spigot of the other member.

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322+,for a contractible socket and see the Search Notes thereunder.
353,for a packed joint with screw thimble-gland.
356+,for a packed gland joint.
384,for a screw thimble-gland joint, per se.

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277Seal for a Joint or Juncture,   for a seal between two pipes or a pipe and a wall that are at most secured together only by friction between the seal and the pipe or wall, subclass 622 for a static contact seal intended for use on a pipe, conduit, or cable having a threaded, axially acting, clamping gland to mount or retain the seal.
279Chucks or Sockets,   subclass 32 and 49 for analogous screw threaded sockets.
  
[List of Patents for class 285 subclass 394]    394CAM:
 This subclass is indented under the class definition.  Subject matter comprising a rotatable element having a groove or surface for imparting reciprocatory or oscillatory motion to a follower to draw the members together.

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358,for a packed coupling with a tightener comprising cam means.

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403Joints and Connections,   subclass 343 for analogous structure in a rod joint.
  
[List of Patents for class 285 subclass 395]    395Thimble:
 This subclass is indented under subclass 394.  Subject matter comprising an external sleeve having an inwardly extending flange or equivalent on one end for sliding engagement with a flange or equivalent on one member and an internally extending cam means on the other end to engage a follower portion on the other member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

359,for a packed cam thimble joint.
406,for a flanged joint with a clamp including a wedge thimble.

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403Joints and Connections,   subclass 342 for similar structure in a rod joint.
  
[List of Patents for class 285 subclass 396]    396Bayonet type:
 This subclass is indented under subclass 394.  Subject matter including a slot or groove providing a cam track on one member and a cooperating lug or equivalent on the other member.

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361,for packed joints of the bayonet type.
  
[List of Patents for class 285 subclass 397]    397INTERNAL SLEEVE:
 This subclass is indented under the class definition.  Subject matter united by a short tubular section inside the ends of the coupled members.

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53,for insulated sleeve joints.
300,for an internal sleeve within a flexible bellows seal of a variable length joint.
370+,for packed joints including an internal sleeve.

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403Joints and Connections,   subclasses 292+ for two members joined by an inserted section.
  
[List of Patents for class 285 subclass 398]    398With external:
 This subclass is indented under subclass 397.  Subject matter also including an external tubular section overlapping the ends of the members joined.
  
[List of Patents for class 285 subclass 399]    399SOCKET:
 This subclass is indented under the class definition.  Subject matter comprising a hollow part or cavity involving an internal wall structure of one member which receives a male portion (e.g., spigot) of the other member.

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374+,for packed socket-typed couplings and see the Search Notes thereunder.

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24Buckles, Buttons, Clasps,   etc., subclasses 588+ for a head and socket separable fastener.
279Chucks or Sockets,   appropriate subclasses.
403Joints and Connections,   subclass 361 for similar structure in a rod joint.
  
[List of Patents for class 285 subclass 400]    400Detachable ring:
 This subclass is indented under subclass 399.  Devices in which at least one of the members carries a separable ring externally thereof, said ring coacting with means (e.g., bolts), for drawing the members together.

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364+,for a packed clamped flanged joint. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 401]    401Lugged pipe, rotary engagement:
 This subclass is indented under subclass 399.  Subject matter wherein one member has a lateral projection adapted to engage a projection or recess in the other member when rotated to hold the members in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

73,for duplicate end couplings having rotary engagement.
292.1,for a molded joint with lug and slot interlock.
307,for a coupling with an essential catch operated by conduit motion.
360+,for similar structure with cam surfaces.
376+,for similar structure with packing.
391+,for interrupted-thread type couplings.
  
[List of Patents for class 285 subclass 402]    402Bayonet slot:
 This subclass is indented under subclass 401.  Subject matter comprising a slot with longitudinal and circumferential components for the cooperating lug.

SEE OR SEARCH THIS CLASS, SUBCLASS:

361,for packed bayonet slot couplings including cam means.
396,for unpacked bayonet slot couplings with cam means.
  
[List of Patents for class 285 subclass 403]    403With separable fastener:
 This subclass is indented under subclass 399.  Subject matter comprising a separable means whereby the spigot is held in the socket.

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81+,for means blocking the release of the joint holding means.
305+,for an essential catch or latch whereby the members are held together.
  
[List of Patents for class 285 subclass 404]    404Set screw or pin:
 This subclass is indented under subclass 403.  Subject matter comprising a set-screw or pin.
  
[List of Patents for class 285 subclass 405]    405FLANGE:
 This subclass is indented under the class definition.  Subject matter wherein at least the free end of one of the members has a transverse shoulder, flange or flange portion utilized in making the joint.

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233,for a beaded spigot in a flexible joint.
234,for a flared conduit end as a flange equivalent in a flexible joint.
339+,for packed couplings including wedge means which are flange equivalents.
363+,for packed flanged joints.
384+,for a flanged joint with a screw-thimble-gland fastening means.

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403Joints and Connections,   subclasses 335+ for flanged joints in general.
  
[List of Patents for class 285 subclass 406]    406Clamped:
 This subclass is indented under subclass 405.  Devices comprising bands, straps, clips, etc., which grip the flanges externally to hold and draw the pipe ends together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

364+,for packed flange joints. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 407]    407Band type:
 This subclass is indented under subclass 406.  Devices comprising a band having a particular cross-section (e.g., V-shaped) which circumferentially grips the flanges to draw and hold the pipe ends together.

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365+,for a similar packed joint.
420,for the clamp, per se.

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24Buckles, Buttons, Clasps,   etc., subclasses 19+ for ring clamps wherein the band is recited broadly. See the Search Notes thereunder.
215Bottles and Jars,   subclasses 280+ for closure fasteners for bottles, including a clamp.
220Receptacles,   subclasses 315+ for fastening devices for receptacle closures.
292Closure Fasteners,   subclasses 256.6+ for a band clamp and closure combination.
  
[List of Patents for class 285 subclass 408]    408With intermediate flange engaging member:
 This subclass is indented under subclass 407.  Devices which include an additional element between the clamping band and the external surfaces of the flanges.
  
[List of Patents for class 285 subclass 409]    409Lever:
 This subclass is indented under subclass 407.  Devices in which the ring is tightened about the flanges by a lever means.
  
[List of Patents for class 285 subclass 410]    410Screw:
 This subclass is indented under subclass 407.  Devices in which a bolt or screw is utilized to apply tightening force to the clamping band.

SEE OR SEARCH THIS CLASS, SUBCLASS:

366,for a packed joint of this type.
  
[List of Patents for class 285 subclass 411]    411Segmented ring:
 This subclass is indented under subclass 410.  Devices in which the clamping ring is made of several parts some of which may be pivotally connected.
  
[List of Patents for class 285 subclass 412]    412Axially bolted:
 This subclass is indented under subclass 406.  Subject matter in which the clamping means comprises at least one separable plate-like pipe receiving ring coacting with a flange and having bolts lying parallel to its axis for producing axial forces to draw the flanges together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

368,for an unpacked bolted flange ring joint.
400,for a socket joint with a bolted flange ring clamping means.
413,for a clamping ring, per se.
  
[List of Patents for class 285 subclass 413]    413Rings:
 This subclass is indented under subclass 406.  Subject matter comprising an annular plate-like body having an aperture and a clamping or jaw portion for transmitting axial forces produced in drawing the ends of the members together; such rings, per se, have been collected here.
  
[List of Patents for class 285 subclass 414]    414Detachable:
 This subclass is indented under subclass 405.  Subject matter wherein the flange is removably attached to the end of a member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

388,for removable thimble combinations including a detachable flange.
  
[List of Patents for class 285 subclass 415]    415Split ring:
 This subclass is indented under subclass 414.  Subject matter the flange comprising a split annular member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

276,for a ring detent in a socket type swivel.
  
[List of Patents for class 285 subclass 416]    416Fused:
 This subclass is indented under subclass 405.  Devices wherein a weld is used to attach the flange to the pipe.

SEE OR SEARCH THIS CLASS, SUBCLASS:

288.1+,for a welded coupling.
289.1+,for a soldered joint.
  
[List of Patents for class 285 subclass 417]    417SLEEVE:
 This subclass is indented under the class definition.  Subject matter comprising a short tubular section extending between and each end thereof providing an overlapping portion with engaging pipe ends.

SEE OR SEARCH THIS CLASS, SUBCLASS:

369+,for a packed sleeve joint. See the Search Notes thereunder.
383,for distinct spaced serial joints.
  
[List of Patents for class 285 subclass 418]    418Dependent:
 This subclass is indented under subclass 417.  Subject matter comprising a common means in the means holding the free ends of the members to be joined in the sleeve ends, wherein both ends are released upon removal or release of the common means.

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398,for a packed internal-external sleeve joint.
  
[List of Patents for class 285 subclass 419]    419Longitudinally divided:
 This subclass is indented under subclass 418.  Subject matter comprising a sleeve split lengthwise.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322+,for a split socket providing a movable jaw portion with means to contract the socket.
373,for a packed longitudinally divided sleeve.
  
[List of Patents for class 285 subclass 420]    420CLAMP:
 This subclass is indented under the class definition.  Subject matter comprising miscellaneous joints including clamps not otherwise provided for.

SEE OR SEARCH THIS CLASS, SUBCLASS:

194,for pipe to plate joints with hole edge clamps.
236,for a clamped resilient sleeve type flexible joint between rigid members.
242+,for an external clamp in a nonmetal to metal coupling.
322,for a contractible socket type coupling.
337,for joints with external packing and clamping means.
364+,for flanged pipes including packing and clamping means.
373+,for packed longitudinally split sleeves.
406+,for flanged pipes including clamping means.
407+,for a clamped flanged joint.
419,for longitudinally split sleeves.
  
[List of Patents for class 285 subclass 421]    421Wedge:
 This subclass is indented under subclass 420.  Devices wherein the clamp comprises wedge means.

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255,for means coupling nonmetal-to-metal members comprising wedge clamp means.
339+,for a coupling comprising wedged packing. See the Search Notes thereunder.
  
[List of Patents for class 285 subclass 422]    422MATERIALS:
 This subclass is indented under the class definition.  Subject matter relating to the materials of which the coupling is made.

SEE OR SEARCH THIS CLASS, SUBCLASS:

43,for tent-type roof flashing.
148.12,for serial diverse joints comprising diverse materials.
238,for nonmetal to metal.
329,for a joint having a particular interface comprising diverse materials.
378,for a joint having a diverse material, metallic seat for a gasket.

SEE OR SEARCH CLASS:

75Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder, Compositions and Loose Metal Particulate Mixtures,   subclasses 228+ for a composition having a continuous phase of free metal made by consolidating metal particles.
428Stock Material or Miscellaneous Articles,   appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet, especially subclass 416 , 418, 432+, 444, 450, and 457+ for a nonstructural composite web or sheet including a layer of metal.
  
[List of Patents for class 285 subclass 423]    423Nonmetallic:
 This subclass is indented under subclass 422.  Subject matter which includes a synthetic resin or other nonmetallic material.

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238+,for nonmetal to metal joints.
  
[List of Patents for class 285 subclass 424]    424Sheet:
 This subclass is indented under subclass 422.  Subject matter which includes material originally in sheet form.

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428Stock Material or Miscellaneous Articles,   subclass 578 for an intermediate sheet-metal article or blank which is of nonrectangular shape.
  
[List of Patents for class 285 subclass 425]    425MISCELLANEOUS:
 This subclass is indented under the class definition.  Subject matter not elsewhere classified.
  

CROSS-REFERENCE ART COLLECTIONS

The following subclasses provide for concepts illogical to the preceding schedule but which contain frequently searched subject matter. As these subclasses contain only discretionary cross references they are of limited search value such that the searcher should refer to preceding subclasses for a complete search.

[List of Patents for class 285 subclass 900]    900BALANCED PRESSURE:
 This subclass is indented under the class definition.  Art collection drawn to balanced pressure.
  
[List of Patents for class 285 subclass 901]    901CAP CLOSURES:
 This subclass is indented under the class definition.  Art collection drawn to cap closures.
  
[List of Patents for class 285 subclass 902]    902CANTED RING:
 This subclass is indented under the class definition.  Art collection drawn to a canted ring.
  
[List of Patents for class 285 subclass 903]    903CORRUGATED:
 This subclass is indented under the class definition.  Art collection drawn to corrugated structure.
  
[List of Patents for class 285 subclass 904]    904CRYOGENIC:
 This subclass is indented under the class definition.  Art collection drawn to cryogenics.
  
[List of Patents for class 285 subclass 905]    905DIFFERENT COEFFICIENTS OF EXPANSION:
 This subclass is indented under the class definition.  Art collection drawn to different coefficients of expansion.