The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 1991
Filed:
Jul. 20, 1990
Donald L Dzioba, Midland, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An anti-theft steering shaft lock on an automobile steering column includes a keeper rotatable as a unit with a steering shaft of the steering column, a dead bolt slidable into and out of a slot in the keeper to immobilize the steering shaft, a transmission shift lever rotatable about a transverse axis of the steering column, a connecting rod between the shift lever and the dead bolt for withdrawing the dead bolt from the keeper slot when the shift lever is rotated from a PARK position to an operating range position, and a blocker on the steering column connected to an ignition lock on the steering column operative to prevent withdrawal of the dead bolt from the keeper when the ignition is locked. The mechanical advantage attributable to the length of the shift lever affords relatively effortless withdrawal of the dead bolt from the keeper against residual torque induced friction between the dead bolt and the keeper slot.