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. 19, 1988
Filed:
Aug. 20, 1986
Applicant:
Inventor:
Philip Young, Washington, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340566 ; 340541 ; 340545 ; 340550 ;
Abstract
An alarm device, suitable for use with venetian blinds and other retractable blinds and curtains, comprises, secured together as a single unit, a piezoelectric motion sensor, an amplifier circuit electrically connected to the piezoelectric sensor to amplify signals generated in the sensor, an audible alarm electrically connected to the amplifier circuit for activation by the amplified signals, and a source of electrical power for the circuit and the audible alarm. In one embodiment described, the unit is built upon a printed circuit board and is of such shape and dimensions as to fit in the bottom rail of a venetian blind.