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:
Jul. 11, 1989
Filed:
Apr. 26, 1988
Applicant:
Inventor:
Earl W Gosswiller, Pompano Beach, FL (US);
Assignee:
Federal Signal Corporation, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ; G10K / ;
U.S. Cl.
CPC ...
340405 ; 340404 ; 3403 / ; 381156 ; 181143 ; 181144 ; 181175 ; 181188 ; 1161 / ; 116147 ;
Abstract
An improved outdoor warning siren comprising an electromechanical siren together with a multi-segment horn which effects an exceptionally smooth transition from a small high pressure area at the horn inlet to a larger low pressure area at the horn outlet thereby producing increased sound output with reduced power requirements.