US PATENT SUBCLASS 92 / 96
.~.~ Diaphragm type

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

89  DF  COLLAPSIBLE CHAMBER WALL PORTION (E.G., HINGED OR FLEXIBLE WALL) {1}
90  DF  .~ Wall portion formed of flexible material {5}
96.~.~ Diaphragm type {4}
97  DF  .~.~.~> Axially spaced flexible wall portions with interposed incompressible means
98 R  DF  .~.~.~> Entire periphery secured to rigid working chamber forming wall {4}
103 R  DF  .~.~.~> Specific or diverse material (47) {3}
104  DF  .~.~.~> Corrugated

DEFINITION

Classification: 92/96

(under subclass 90) Apparatus comprising a relatively thin membrane-like member having a peripheral edge portion, said member being adapted to be associated with a surrounding or encompassing tubular rigid structure to extend transversely thereof to form a closing wall for said tubular structure, the outer peripheral edge of said membrane being in sealing relationship with the encompassing wall of said tubular structure.

(1) Note. The membrane-like member need not span the entire space within the encompassing wall of the tubular member, but may be in the form of a ring or frustum having the inner peripheral edge thereof in sealing engagement with a rigid element movable relative to and coaxial with the encompassing tubular member.

SEE OR SEARCH CLASS

73, Measuring and Testing,

269+, for a diaphragm type, expansible chamber volume or rate of flow meter, subclasses 279+ for a diaphragm for an expansible chamber type volume or rate of flow meter, and subclasses 715+ for a diaphragm for a fluid pressure gauge.

137, Fluid Handling, 510, for a line condition change responsive valve with a separate connected fluid reactor surface in which the reactor surface is a diaphragm, and subclasses 525+ for a direct response line condition change responsive valve, formed of resilient material.

138, Pipes and Tubular Conduits,

30+, for a variable capacity chamber including a diaphragm member forming a yieldable wall for the chamber.

251, Valves and Valve Actuation,

61+, for a valve having a flexible material wall expansible chamber reciprocating valve actuator.

285, Pipe Joints or Couplings,

225, for a diaphragm type flexible joint between rigid members.