Differential pressure monitor

Details Differential pressure monitor Differential pressure monitor

1984-12-03

1987-03-24

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Piston

G01L 716

Patent

active

046515704

ABSTRACT:
The present invention provides a differential pressure monitor having an elongated housing defining an elongated interior chamber. A piston is axially slidably mounted within the chamber and divides the chamber into two subchambers, each of which are fluidly connected to a fluid system. A compression spring resiliently urges the piston in one axial direction in the chamber while an arm abuts against the piston and provides an exteriorly visible signal of the position of the piston within the chamber and thus of the differential pressure between the subchambers.

REFERENCES:
patent: 2737804 (1956-03-01), Herzog et al.
patent: 3182630 (1965-05-01), Claeys
patent: 3429291 (1969-02-01), Hoffman

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