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:
May. 28, 1985
Filed:
Mar. 08, 1982
Applicant:
Inventors:
Sidney Altman, Hamden, CT (US);
Dan Kasha, North Haven, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340574 ; 34030915 ; 340530 ;
Abstract
A passive personal alarm device is activated by release of a spring-loaded button switch which, when held down, opens an otherwise closed circuit. A time delay element in the circuit prevents sounding of the alarm for a predetermined period in the event of an accidental release of the actuating button. The button is released, either purposefully or inadvertently, during an attack and the alarm is sounded after expiration of the time delay. Once activated, the alarm device can be deactivated only by repositioning a number of coded switches in a pattern known only to the alarm user.