Locks – Portable – Padlocks
Patent
1985-02-22
1987-04-28
Wolfe, Robert L.
Locks
Portable
Padlocks
70 53, 70238, 70298, 70322, B60R 2500, E05B 3722, E05B 6512
Patent
active
046603948
ABSTRACT:
Push-button type steering wheel lock, incorporating two columns of a number of push keys, facing each other, and each provided with an identification code, and mounted on the keyway provided centrally in a vertically installed slider and in a counterpart groove respectively, the slider flanked by aligned projections on both sides to achieve transmission of the slider through engagement with correspondingly shaped cavities provided on a base plate. An L-shaped detent attached on one side of the slider is employed to engage with the bullet-like detent at the annular groove, which is biased by a spring attached at the end thereof to move to and fro, thereby achieving locking and unlocking of the object. In locking, the arcuated portion falls into one arcuated notch of the J-shaped locking stem which is extendably received in a J-shaped tube with the L-shaped detent engaging with the annular groove, and in unlocking, the L-shaped detent disengages from the annular groove, permitting the bullet-like detent to retract and the J-shaped locking stem to freely move against it. Each push key is provided with 10 or an appropriate quantity of cards each bearing a particular code cipher permitting permutation and combination altogether at the sole discretion of the user to constitute a code number that will deny illegal attempts whatever meant to defeat such a lock.
REFERENCES:
patent: 603711 (1898-05-01), Snyder
patent: 1247150 (1917-11-01), Rial et al.
patent: 2008565 (1935-07-01), Segal
patent: 2628490 (1953-02-01), Klein
Gall Lloyd A.
Wolfe Robert L.
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