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:
Dec. 13, 1994
Filed:
Oct. 30, 1992
Jerry R Smith, Littleton, CO (US);
Ideaz International, Inc., Englewood, CO (US);
Abstract
A key control device comprises a primary key, a primary lock, a secondary key, a secondary lock, and a mechanical drive. The primary lock operably receives the primary key and is keyed such that when the primary key is inserted into the primary lock, it becomes movable between a primary key release state and a primary key capture state. The secondary lock operably receives the secondary key and is keyed such that when the secondary key is received by the secondary lock it becomes movable between a secondary key release state and a secondary key capture state. The mechanical drive interconnects the primary and secondary locks such that when the primary lock moves from its primary key release state to its primary key capture state, the secondary lock simultaneously moves from its secondary key capture state to its secondary key release state and vice versa. Only one key can be removed at any given time from either lock and such removal locks the other key against removal so that it is retained by the key control device.