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. 27, 1979
Filed:
Nov. 21, 1977
Applicant:
Inventor:
Richard J Ohno, Branford, CT (US);
Assignee:
Walter Kidde & Company, Inc., Clifton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05F / ; E05C / ;
U.S. Cl.
CPC ...
70 92 ; 292 92 ; 292D / ; 292D / ;
Abstract
A surface mounted rim type lock set assembly for use on fire doors wherein a latch bolt is adapted for release by operation of a cross-bar on one side of the door and for release independently by manual operation of a lever-type handle on the other side, the assembly including a locking slide which is held out of engagement with the handle hub by heat responsive means adapted to release the slide when a portion of said means is melted. Normal locking and unlocking of the handle is effected by a key in a cylinder lock.