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:
Apr. 25, 1989
Filed:
Feb. 29, 1988
Applicant:
Inventors:
Gregg L Smith, Rolling Hills Estates, CA (US);
Mansam Choi, Monrovia, CA (US);
Assignee:
Adams Rite Manufacturing Company, City of Industry, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ; E05C / ;
U.S. Cl.
CPC ...
292 92 ; 292279 ; 292D / ;
Abstract
A door retention assembly locks a door in closed position in response to high temperature as during a fire, the door element having an edge portion closable into adjacent relation to an edge portion defined by a header element, and there being a strike carried by one of the elements. The assembly includes: