Electrical resistors – Resistance value responsive to a condition – Fluid- or gas pressure-actuated
Patent
1987-05-29
1988-03-01
Albritton, C. L.
Electrical resistors
Resistance value responsive to a condition
Fluid- or gas pressure-actuated
73746, 338 47, H01L 1010
Patent
active
047289201
ABSTRACT:
A fluid pressure transducer having a hollow enclosure with an elongated tubular guide supported therein around which a tubular piston moves in response to fluid pressure forces acting on one piston end. A spirally-wound wire resistance coil on the guide is contacted by one end of a conductor carried by the movable piston to effectively charge resistance through the conductor and parts of the coil. The conductor is connected to one end of a metal spring which opposes piston movement due to pressure forces. An opposite end of the metal spring is connected to a terminal to transmit the resistance changes.
REFERENCES:
patent: 2669876 (1954-02-01), Lentz
patent: 2790043 (1957-04-01), Clason
patent: 3018457 (1962-01-01), Clason
Betterton Joseph T.
Evans John L.
Glover Alfred H.
McKee Thomas S.
McKee William D.
Albritton C. L.
Chrysler Motors Corporation
MacLean, Jr. Kenneth H.
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