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:
Nov. 23, 2010
Filed:
Apr. 24, 2009
Daniel J. Picard, Oakville, CT (US);
Jon Hulse, Wethersfield, CT (US);
Jay Krajewski, Coventry, CT (US);
Daniel J. Picard, Oakville, CT (US);
Jon Hulse, Wethersfield, CT (US);
Jay Krajewski, Coventry, CT (US);
Sargent Manufacturing Company, New Haven, CT (US);
Abstract
A fire exit alert system, preferably integrated into an exit device or automatic fire exit door closer, uses sound and light to signal the location of a fire exit in darkness and smoke-obscured rooms. The alert system includes a voice signal, such as 'EXIT LOCATED HERE,' to signal that the location of the voice is also the location of the exit. A white noise signal generator is used to supplement the voice signal and produces a sound that is particularly localizable by the human ear. A strobe light and a laser are used to produce a visual guide to the location of the exit. The strobe light is flashed when the word 'HERE' is used in the voice signal. The laser is used to produce a cone of light that points towards the fire exit alert system.