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:
Apr. 29, 2003
Filed:
Aug. 24, 2001
Applicant:
Inventors:
Greg R. Pattok, Holland, MI (US);
John R. Pacelli, Holland, MI (US);
Assignee:
Gentex Corporation, Zeeland, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
G08B 5/00 ; H05B 3/900 ; H05B 4/100 ;
U.S. Cl.
CPC ...
G08B 5/00 ; H05B 3/900 ; H05B 4/100 ;
Abstract
A visual alarm device includes a flash tube that provides a visual indication responsive to trigger a signal. A strobe circuit is coupled between the flash tube and a power source and causes a flash tube to emit light at a desired flash rate. The strobe circuit includes a storage circuit, an in-rush current limiting circuit control unit.