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:
Aug. 08, 2000
Filed:
Oct. 06, 1994
Joseph F Bader, Crete, IL (US);
Ward Gieffers, Oak Lawn, IL (US);
Michael Benner, Lisle, IL (US);
Kent Allen Kekeis, Munster, IN (US);
Dennis James Hilburger, Dolton, IL (US);
Federal Signal Corporation, University Park, IL (US);
Abstract
An emergency signalling system is disclosed that incorporates an emergency signalling device including a light source and reflector mounted for relative rotation in incremental steps in either clockwise or counterclockwise directions. A programmable control unit of the signalling system provides digital signals to a drive source for controlling the speed and direction of the relative rotation. In response to the digital signals, the signalling device executes a variety of different visual patterns. The signalling system can be programmed from a keyboard preferably integrated into a control head mounted to a dashboard area of a vehicle incorporating the emergency signalling system. Virtually any type of visual warning pattern based on the relative rotation of a light source and reflector can be executed by the signalling device if properly programmed.