Apparatus for prevention of key locked in car

Details Apparatus for prevention of key locked in car Apparatus for prevention of key locked in car

1993-08-20

1995-09-19

Swarthout, Brent

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340568, 340572, B60Q 100

Patent

active

054519284

ABSTRACT:
A method and apparatus for preventing a person from leaving an enclosed space having a door while leaving an article behind, such as preventing a driver from leaving an automobile while leaving the ignition keys within the automobile. Sensing elements are mounted on opposite sides of the door and a sensing device is located with the person. A shield which is adapted to cover the sensed element is attached to the ignition key. When the driver leaves the car without the ignition key, and without the shield covering the sensed element, the sensing device sounds an audible or visual alarm.

REFERENCES:
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patent: 4196424 (1980-04-01), Williamson
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patent: 4962369 (1990-10-01), Close
patent: 5079540 (1992-01-01), Narlow et al.
patent: 5079541 (1992-01-01), Moody

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