Pressure monitoring device

Details Pressure monitoring device Pressure monitoring device

1975-09-22

1977-05-17

Woodiel, Donald O.

Measuring and testing

Speed, velocity, or acceleration

With means for retaining reading

73398R, 73419, 1374931, 200 83N, G01L 706

Patent

active

040234150

ABSTRACT:
An actuator device responsive to a pressure variation in its surrounding environment comprises a wall structure forming a small chamber having a pressure activated inlet check valve that allows fluid to flow into the chamber. One wall portion of the device is movable to an extendable position when pressure within the chamber exceeds the outside pressure.

REFERENCES:
patent: 2554594 (1951-05-01), Shea
patent: 3252135 (1966-05-01), Amundsen, Jr.
patent: 3332287 (1967-07-01), Amen

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