Pneumatic-hydraulic pressure transducer

Details Pneumatic-hydraulic pressure transducer Pneumatic-hydraulic pressure transducer

1988-02-25

1989-06-06

Look, Edward K.

Expansible chamber devices

Plural flexible wall working members

92110, 91520, 303113, F01B 1900

Patent

active

048360929

ABSTRACT:
A combined pneumatic and hydraulic pressure transducer is comprised of a pressure capsule with an open interior divided into first and second sections by a partition wall, and a respective axially displaceable diaphragm extends across each of the sections defining third and fourth pressure chambers which change in volume due to axial displacement of the respective diaphragms. A rigid piston intermediate member extends through the partition wall and joins the diaphragms to move together. Connections communicating between the third pressure chambers and between the fourth pressure chambers pass through the intermediate member. A respective hydraulic cylinder at each end of the pressure capsule receives and operates upon a respective end of the intermediate member.

REFERENCES:
patent: 2983256 (1961-05-01), Seeloff
patent: 2992652 (1961-07-01), Fellberg
patent: 3148364 (1964-09-01), Engles et al.
patent: 3430539 (1969-03-01), Freeman
patent: 3457840 (1969-07-01), Grimes
patent: 3482485 (1969-12-01), Abbott
patent: 3975989 (1976-08-01), Hirmann
patent: 4515412 (1985-05-01), Sato
patent: 4575161 (1986-03-01), Vanzant et al.
patent: 4641895 (1987-02-01), Belart et al.

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