Pressure converter

Details Pressure converter Pressure converter

1985-04-18

1986-07-29

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

338 32R, 338 42, G01L 902, H01L 1010

Patent

active

046025138

ABSTRACT:
A pressure converter which comprises a cylindrical main body consisting of an outer casing portion and an inner casing portion, said outer casing having a pressure inlet and being divided by a diaphragm into an air-tight chamber above the diaphragm and an operation chamber below the diaphragm, a piston supported by a pair of annular spring plates within the operation chamber for vertical movement and having an engaging member provided at one end, a stopper interposed between the spring plates, a magnetic resistance provided in a lower portion of the operation chamber to produce output voltage which varies depending upon the position of a permanent magnet positioned on a movable member in opposition to the magnetic resistance and a spring anchored to the inner casing portion and the movable member to normally bias the movable member to engage the piston.

REFERENCES:
patent: 4006402 (1977-02-01), Mincuzzi
patent: 4512199 (1985-04-01), Woodward et al.

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