Brake fluid level sensing system

Details Brake fluid level sensing system Brake fluid level sensing system

1975-04-21

1976-10-12

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Plural switch

200 612, 200 84B, 200 83A, 73403, 116118R, 340 52C, H01H 3518

Patent

active

039859851

ABSTRACT:
A hydraulic brake fluid level sensing system having a switch housing above a diaphragm which sealingly encloses a fluid reservoir. A float rod guide extends through the diaphragm and a float rod extends through the rod guide and into the switch housing. A float vertically positions the float rod in accordance with brake fluid level. A switch element is positioned by the float rod to bridge a pair of contacts when the fluid level decreases to a specified level. A slot is provided in the rod guide to provide a vent to the fluid reservoir when the diaphragm is moved down the rod guide by differential pressure thereacross resulting from brake fluid loss.

REFERENCES:
patent: 2907844 (1959-10-01), Lindsey
patent: 3541282 (1970-11-01), Kretchman
patent: 3577121 (1971-05-01), Wing
patent: 3606764 (1971-09-01), Yokouchi

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