US PATENT SUBCLASS 92 / 34
BELLOWS TYPE EXPANSIBLE CHAMBER

Current as of: June, 1999
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92 /   HD   EXPANSIBLE CHAMBER DEVICES

34BELLOWS TYPE EXPANSIBLE CHAMBER {10}
35  DF  .~> Expansible chamber formed by concentric bellows
36  DF  .~> With non-bellows type expansible chamber
37  DF  .~> Plural bellows {2}
40  DF  .~> With separate biasing means
41  DF  .~> With vibration damping means
42  DF  .~> With separate ring-like reinforcing element abutting pleat
43  DF  .~> With stop means to limit axial movement of bellows
44  DF  .~> With guide means
45  DF  .~> Superposed peripherally interconnected elements {1}
47  DF  .~> Specific or diverse material (103)

DEFINITION

Classification: 92/34

(under the class definition) Apparatus comprising a flexible structure which is capable of expanding to increase the volumetric capacity thereof, said structure comprising (1) a tube of flexible material having a circumferentially corrugated or pleated wall, (2) at least two annular plates arranged in superposed relation, said plates being hingedly secured together in sealed relation along their inner peripheral edges only or (3) a pair of rigid plate like members pivoted together along a portion of their peripheral edges, the remaining peripheral edge portion of said plates being joined together by a flexible member which is pleated in some position of relative pivotal movement of the plate like members.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89+, for a collapsible wall type expansible chamber device.

SEE OR SEARCH CLASS

73, Measuring and Testing,

262+, for a volume or rate of flow meter which includes a bellows type expansible chamber, and subclass 729.1 for a bellows type fluid pressure gauge. 74, Machine Element or Mechanism,

18+, for a flexible sealing element of the bellows type attached to a relatively movable rod and casing.

137, Fluid Handling,

510, for a line condition change responsive valve having a separate connected fluid reactor surface in which the reactor surface comprises a bellows.

138, Pipes and Tubular Conduits,

21, for a corrugated flexible tube, or pipe of general utility. Class 92, Expansible Chamber Devices takes a corrugated tubular member where the sole specific disclosure or a claim is directed to a bellows element for an expansible chamber device.

251, Valves and Valve Actuation,

61+, for a valve having a flexible wall fluid actuator including a bellows type expansible chamber device.

285, Pipe Joints or Couplings,

226+, for a bellows type flexible joint between rigid members.

374, Thermal Measuring and Testing,

203, for a bellows type thermometer. 417, Pumps,

472+, for expansible chamber type pump incorporating a bellows element.