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. 09, 1986
Filed:
Sep. 17, 1984
Suresh K Bhate, Schenectady, NY (US);
Other;
Abstract
In a locking system, a combination of mechanical tumblers which are moved into a release position by the shape of the key and at least one magnetic tumbler which is drawn into the release position by a visually nondiscernible magnet placed on the key. The lock style being standard in that it includes inner and outer cylinders wherein the inner cylinder rotates between an open and locked position. In an alternate embodiment of the subject invention, an additional tumbler made from a magnetically attractible material is placed in the cylinders and biased to the open position. Should the key being used to open the lock contain a magnet substantially adjacent to this additional magnetic tumbler, the tumbler will be drawn to the locked position thereby preventing the rotation and opening of the inner cylinder.