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. 21, 1998
Filed:
Feb. 18, 1997
Applicant:
Inventor:
Alan K Uyeda, Trabuco Canyon, CA (US);
Assignee:
Adams Rite Manufacturing Co., City of Industry, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B / ; E05B / ; E05B / ;
U.S. Cl.
CPC ...
292D / ; 292 92 ; 29234117 ; 70DI / ;
Abstract
In a door closure assembly, the combination comprising a latch bolt element; carrier structure to carry the bolt element to pivot between door unlatched and latched position; and means carried by a fire resistant portion of the assembly to be responsive to an increase in temperature to a level T to move into position to block door unlatching movement of the bolt element from door latching position.