High gain pneumatic switch
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United States of America Patent
Stats
-
Aug 28, 1984
Grant Date -
N/A
app pub date -
Jul 11, 1983
filing date -
Jul 11, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An amplifying pneumatic switch which is responsive to low pressure signals includes a first chamber for receiving an input signal from a first pneumatic pressure source at a first pressure. The first chamber includes a wall formed by a movable, highly resilient diaphragm. A diaphragm plate is disposed generally coextensive with the diaphragm and is responsive to diaphragm movement. A nozzle is coupled to a second source of pneumatic pressure and is sealable for generating a pneumatic output signal at a second pressure. A sealing mechanism including a lever and a plunger coact between the diaphragm and the nozzle for sealing the nozzle in response to the input signal. A spring is provided for biasing the diaphragm plate to a quiescent position in the absence of an input signal.
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