US PATENT SUBCLASS 73 / 715
.~ Diaphragm

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

700  DF  FLUID PRESSURE GAUGE {20}
715.~ Diaphragm {6}
716  DF  .~.~> Multiple and/or differential {1}
723  DF  .~.~> With electrical readout {3}
729.1  DF  .~.~> Bellows
729.2  DF  .~.~> Capsule
730  DF  .~.~> Expansible conduit
731  DF  .~.~> Sack

DEFINITION

Classification: 73/715

Diaphragm:

(under subclass 700) Subject matter comprising a flexible wall or plate as the pressure responsive element.

(1) Note. This subclass includes devices in which fluid transmission means are provided to transmit changes in pressure from the pressure sensitive element to the indicator.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices,

90+, for a flexible wall type expansible chamber device.