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:
Nov. 26, 2002
Filed:
May. 05, 2000
Applicant:
Inventors:
Daniel N. Nigro, Jr., Ocean Springs, MS (US);
Eugene Karl Siller, Indianapolis, IN (US);
Assignee:
Von Duprin, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05C 1/02 ;
U.S. Cl.
CPC ...
E05C 1/02 ;
Abstract
A sliding deadbolt for use with an exit alarm lock having deadbolt guide supports which are closer to the centerline of the deadbolt than the point at which the exit alarm lock drivers contact the deadbolt to move the deadbolt between a retracted position and an extended position. By placing the guide supports closer the deadbolt centerline, the resistive forces between the deadbolt and the support/bolt contact points as a result of loads on the deadbolts (such as from the exit alarm lock drives), are reduced.