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. 15, 1986
Filed:
Feb. 10, 1983
Applicant:
Inventor:
James W Walsh, Baltimore, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ; G08B / ;
U.S. Cl.
CPC ...
3402 / ; 340287 ; 34081521 ;
Abstract
Apparatus for identifying and directing attention to a location, such as an emergency exit, includes a series of sound generators arranged along a path leading from a remote site to the location. The sound generators are energized sequentially and individually, preferably with a tone which rises in frequency as the sound travels from the remote site to the location of interest. If the sound generators are used to direct attention to an emergency exit, the sound generators are activated upon the occurrence of an emergency condition, such as a fire, and the sequence of tones is cycled continuously until the emergency condition ceases.