Automatic door lock prevention system

Details Automatic door lock prevention system Automatic door lock prevention system

1984-05-21

1986-02-25

Peters, Jr., Joseph F.

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

By preventing unauthorized or unintended access or use

70237, 70263, 340 52D, B60R 1800

Patent

active

045723206

ABSTRACT:
A system to prevent an automobile door from being locked while the key is in the ignition switch and the driver is outside comprising an electric circuit including a switch on the ignition lock that is closed when the key is in the lock, a switch on the door that is closed when the door is open and a switch on the door lock mechanism that is closed when the lock mechanism is moved toward the locked position; the closing of all three switches activating a solenoid which moves the lock mechanism to the unlocked position.

REFERENCES:
patent: 3399554 (1968-09-01), Hogue
patent: 4223296 (1980-09-01), Kim et al.
patent: 4240516 (1980-12-01), Henderson et al.

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