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. 12, 1985
Filed:
May. 10, 1982
Applicant:
Inventor:
Elden E DuRand, III, Crestwood, KY (US);
Assignee:
Bluegrass Electronics Inc., La Grange, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01H / ;
U.S. Cl.
CPC ...
73647 ; 340566 ;
Abstract
A device for selecting the proper sensitivity and acceptable background noise level for sound discrimination switches used for detection of selected sounds where the detection device includes peak signal detectors to receive audio voltage generated by the selected sounds and activate an alarm.