Differential pressure indicating device

Details Differential pressure indicating device Differential pressure indicating device

1975-06-18

1976-08-17

Swisher, S. Clement

Signals and indicators

Alarms

Fluid flow

116 65, 116DIG25, 116DIG42, G08B 500

Patent

active

039747956

ABSTRACT:
A differential pressure indicating device includes a piston responsive to the differential between inlet and outlet pressures. The piston is retained in a normal position by the force of spring means, and which spring means releases the piston at a predetermined excessive differential pressure condition, whereupon the piston actuates an indicating member for indicating the condition. The device is reset by manually re-engaging the piston and the spring means subsequent to correcting the condition.

REFERENCES:
patent: 2719485 (1955-10-01), Bendar
patent: 3140690 (1964-07-01), Siebel
patent: 3212471 (1965-10-01), Willis
patent: 3364897 (1968-01-01), Mouwen
patent: 3646906 (1972-03-01), Hammer

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