Measuring and testing – Fluid pressure gauge – Diaphragm
Patent
1987-11-03
1989-02-21
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Diaphragm
73746, 338 39, 338 42, G01L 708, G01L 902
Patent
active
048054607
ABSTRACT:
A pressure transducer to measure and indicate fluid pressure levels including a housing in which a diaphragm and piston assembly is movable in response to pressure changes, the piston having a portion extending therefrom to engage a switch contact thereby disengaging the switch when the fluid pressure falls below a desired level.
REFERENCES:
patent: 4449112 (1984-05-01), Gould
Betterton Joseph T.
Glover Alfred H.
Griffin Ranald L.
Kerstiens Anthony J.
Chrysler Motors Corporation
MacLean, Jr. Kenneth H.
Woodiel Donald O.
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