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:
Mar. 23, 1999
Filed:
Sep. 24, 1997
Applicant:
Inventor:
Sheldon Milman, Wheeling, IL (US);
Assignee:
ILCO Unican Corp., St. Charles, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70472 ; 70149 ; 70189 ; 70223 ; 70276 ; 70277 ; 70283 ; 192 849 ; 192 8421 ; 2922515 ; 292D / ;
Abstract
An electric clutch system for a mortise-type security lock is provided. The clutch system includes one or more magnets disposed in one hub of a mortise-type lock. The magnet is recessed and disposed below the interior surface of the hub that engages the opposing hub of the mortise-type lock. The opposing hub includes one or more spring-biased armatures. Upon the application of current to the magnet, the armature is drawn toward the magnet resulting in a coupling-type connection between the two hubs so that rotation of the exterior handle will open the door.