Fuel safety switch

Details Fuel safety switch Fuel safety switch

1976-06-01

1978-07-04

Pitts, Harold I.

Communications: electrical

Condition responsive indicating system

Specific condition

123142, 200 83D, 340605, 340611, G08B 2100

Patent

active

040991660

ABSTRACT:
A fuel safety switch for the fuel system of a motor is designed to be placed in the fuel delivery system and includes a bellows responsive to the pressure of the fuel within the fuel system for expansion outwardly, coil springs disposed on both sides of the bellows to provide a snap action return of the bellows to a collapsed condition after a reduction in fuel pressure, a first set of contacts activating an over fuel indicator when the bellows is expanded beyond a predetermined limit, and a second set of contacts activating the motor brake retarders, if turned on, when the bellows collapses to the unexpanded state.

REFERENCES:
patent: 1231561 (1917-07-01), Briggs
patent: 2767392 (1956-10-01), Szwargulski
patent: 3911393 (1975-10-01), Biggs

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