Electronic door locking mechanism

Details Electronic door locking mechanism Electronic door locking mechanism

1993-08-02

1994-10-18

Pellinen, A. D.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

E05F 1518

Patent

active

053571436

ABSTRACT:
The conventional door lock on a bulkhead door of a delivery van or the like is controlled by an electrical circuit including a solenoid which is activated by a time delay relay circuit operatively connected to the vehicle ignition. When the vehicle is being operated, the lock maintains the door in a locked position. When the vehicle stops and the operator removes the key from the ignition, the circuitry of the invention momentarily unlocks the door lock which enables the operator to manually slide the door open without the necessity of using the key to unlock the door. After a few seconds, the circuit deactivates the solenoid so that the lock will relock automatically.

REFERENCES:
patent: 2506851 (1950-05-01), Ayers, Jr.
patent: 2530628 (1950-11-01), Pivero
patent: 2765648 (1956-10-01), Hatcher
patent: 2974742 (1961-03-01), Tyler
patent: 3754164 (1973-08-01), Zorzy
patent: 4013930 (1977-03-01), Geller
patent: 4083424 (1978-04-01), von den Stemmen et al.
patent: 4537049 (1985-08-01), Lupoli
patent: 4612729 (1986-09-01), Sato
patent: 4730120 (1988-03-01), Okada

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