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. 09, 1993
Filed:
Feb. 26, 1990
Applicant:
Inventor:
Fred J Conforti, Wheaton, IL (US);
Assignee:
Pittway Corporation, Aurora, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H01M / ;
U.S. Cl.
CPC ...
116280 ; 116200 ; 429100 ; 340636 ;
Abstract
A battery powered condition detecting unit includes first and second battery retaining prongs which in the absence of a battery come in contact with a blocking flange on a cover thereby making it impossible to latch the cover to the unit. In the presence of a battery, the free ends of the battery retaining prongs are spread apart so that the blocking flange drops therebetween allowing the cover to be latched to the unit.