Electrical cut off float switch

Details Electrical cut off float switch Electrical cut off float switch

1985-03-08

1986-07-15

Tolin, G. P.

Electricity: circuit makers and breakers

Float

Float and pressure

200 84R, 73308, 73317, H01H 3518

Patent

active

046008209

ABSTRACT:
The present invention provides an automatic cut off switch which grounds the magneto-spark plug circuit of a small gasoline engine shutting the engine down when the quantity of lubricating oil within the sump falls below a predetermined quantity. The switch is operated by a balance beam float assembly housed within a protective shroud. The protective shroud acts to collect a relatively stable pool of oil, representative of the quantity of oil remaining in the sump, for activation of the balance beam float. Upon refilling of the oil sump the switch automatically resets thereby permitting re-start of the engine.

REFERENCES:
patent: 2116415 (1938-05-01), Shenton
patent: 2577165 (1951-12-01), Thorsheim
patent: 2885507 (1959-05-01), Holman

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