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:
Jul. 23, 1985
Filed:
Nov. 01, 1982
Applicant:
Inventor:
Roy N Oliver, Salem, VA (US);
Assignee:
Medeco Security Locks, Inc., Salem, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70417 ; 70448 ; 70452 ;
Abstract
A rim cylinder protection unit includes a single flat thick solid hardened steel guard plate counterbored to receive the rim of the cylinder. The cylinder is secured to the plate and prevented from rotation by cooperation with a cylinder retaining plate attached to the backside of the guard plate. The thick solid steel guard plate has heavy mounting studs welded by hardened material to the plate to extend through the door and these studs are protected by hardened steel sleeves to prevent burglars from chiseling through the studs. A replaceable cover conceals the rugged steel guard plate.