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:
Jun. 09, 1981
Filed:
Mar. 26, 1979
Applicant:
Inventors:
Victor S Hammer, Jr, Lake Zurich, IL (US);
Arthur J Danko, Oak Lawn, IL (US);
Perry J Heard, Chicago, IL (US);
Assignee:
Illinois Tool Works Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E05C / ;
U.S. Cl.
CPC ...
292 17 ; 292D / ; 292D / ;
Abstract
A safety anchor latch device for a metallic latch strike including a plastic latch and a metallic spring member having positive position retaining means and positive strike gripping means which at normal operating temperatures are inoperative and supported by the elements of said plastic latch in space relation to a supporting work structure and the metallic latch strike respectively but which positively engages and retains same when said plastic latch is destroyed by abnormally elevated temperatures.