Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1990-08-07
1992-09-29
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
307 91, 307119, 307124, 200 6187, B60D 162
Patent
active
051518449
ABSTRACT:
A hand brake operated control device of a car includes an electrical control circuit having a normal-open switch positioned under a rear cam portion of a hand brake lever, a normal-close switch formed in a front portion of the hand brake lever to be operatively depressed by a push button of the hand brake lever, and an electromagnetic switch which is powered for protruding a core latch outwardly to retard a depression of an accelerator pedal of the car, whereby upon an upwardly pulling of the hand brake lever for braking the car, the normal-open switch will be closed by the rear cam portion of the hand brake lever to close the electrical control circuit to actuate the electromagnetic switch to protrude the core latch outwardly for retarding a depression of the accelerator pedal for preventing the driving of a hand braked car for protecting the car; and upon a depression of the push button of the hand brake lever, the normal-close switch will be opened as being depressed by the push button to thereby open the control circuit so as to retract the core latch of the electromagnetic switch for a free depression of the accelerator pedal for normally driving the car.
REFERENCES:
patent: 4192399 (1980-03-01), Otteson et al.
patent: 4543569 (1985-09-01), Karlstrom
patent: 5031737 (1991-07-01), Dzioba et al.
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