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:
May. 04, 1982
Filed:
Oct. 09, 1980
Applicant:
Inventors:
Philip J Burnstein, Skokie, IL (US);
Gerard Seyler, Elgin, IL (US);
Assignee:
Pittway Corporation, Aurora, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340388 ; 340392 ;
Abstract
A horn includes a magnetically permeable housing having a diaphragm attached thereto and an electromagnet also attached to the housing. A carrier member loosely and unattachedly rests on a shelf in the housing and is attached to a striker member of magnetically permeable material. The striker member is located between the diaphragm and the electromagnet and is moved away from and against the diaphragm to generate noise.