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US 4,747,282 AGranted
Guard device for automobile ignition lock
OwnerAlbert S. Nyuninventor
Life of this patent
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Abstract
The keyway of an automobile ignition lock can be protected by a key-shaped element which is secured by a combination lock to substantially preclude tampering with the automobile ignition lock. The guard device can be removed from the ignition lock keyway upon setting of the combination lock dials to the release position, and the regular ignition key can then be used with the ignition lock.
Claims8
A keyhole guard device for automobile ignition locks which comprises:
- a hollow handle portion with which said guard device can be held and selectively inserted and removed from an ignition lock keyway;
- a combination lock means wherein the locking mechanism includes at least one main bolt, said main bolt being housed in said hollow handle portion;
- a hollow blade end unitary with said hollow handle portion and its interior in communication with the interior of said hollow handle portion;
- and
- a spring element operatively connectable to said main bolt, said spring element being adapted to assume an extended, active, position and a retracted, inactive, position;
- said main bolt and said spring element being capable of selectively interacting such that the hollow blade end can be inserted into the keyway of the respective automobile ignition lock when said spring element is in its inactive position, but it can only selectively be taken out of the keyway of the respective automobile ignition lock by setting of the unlocking combination to allow actuation of said main bolt and bringing said spring element into its inactive positon.
3 more elements
Dependencies are inferred from the claim text.