US PATENT SUBCLASS 92 / 102
.~.~.~.~ With separate seal means between diaphragm and member

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  DF  .~.~ Diaphragm type {4}
98 R  DF  .~.~.~ Entire periphery secured to rigid working chamber forming wall {4}
102.~.~.~.~ With separate seal means between diaphragm and member

DEFINITION

Classification: 92/102

(under subclass 98) Apparatus in which a separate sealing gasket is interposed between the peripheral portion of the diaphragm and the rigid structure.