Safety vacuum valve and electric switch for speed control system

Details Safety vacuum valve and electric switch for speed control system Safety vacuum valve and electric switch for speed control system

1976-03-12

1980-03-11

Silverstrim, John P.

Motor vehicles

With means responsive to speed of vehicle for maintaining...

200 6186, 200 6189, 251304, 192 3M, B60K 3100

Patent

active

041923995

ABSTRACT:
A brake or clutch pedal actuated safety switch for use with an automotive speed control system is disclosed. The switch opens an electric circuit and admits atmospheric air to a vacuum line when the brake pedal or clutch pedal is depressed. The electric circuit normally opens first to deactivate the speed control system electrically at the system's regulator, and the vacuum line is opened subsequently to act as a backup for deactivation of the system. A rotatably mounted lever member, biased by a spring toward the deactivating position, controls both the electric and the vacuum circuits. When the pedal is fully released and returned to its undepressed position, a tension line rotates the lever member against the bias of the spring to a position wherein the electric circuit and the vacuum line are closed.

REFERENCES:
patent: 1785366 (1930-12-01), Shoenberg
patent: 1826766 (1931-10-01), Gebhard
patent: 2053072 (1936-09-01), Farmer
patent: 2277457 (1942-03-01), Rook
patent: 3198280 (1965-08-01), Van Ostrom
patent: 3211251 (1965-10-01), Parker
patent: 3322912 (1967-05-01), Kuchta
patent: 3431997 (1969-03-01), Kauthekar
patent: 3462571 (1969-08-01), Edwards
patent: 3794147 (1974-02-01), Shellhause

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