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. 21, 2000
Filed:
Aug. 10, 1999
Applicant:
Inventors:
Glenn H Chapman, Coquitlam, British Columbia, CA;
Mark Zaacks, Sidney, British Columbia, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
3405683 ; 3405682 ; 340571 ; 340657 ; 340687 ; 200 6159 ;
Abstract
An anti-theft power cord for use with electrical devices has sensors for detecting removal of the cord from an electrical receptacle and for detecting the removal of the cord from the device sought to be protected. Control systems associated with each of the sensors activate alarms when receiving signals from the sensors. The control systems, comprising microcontrollers, also communicate with one another along the power cord and will sound an alarm if the cord is cut. A battery backup system is provided to allow the power cord to function as an anti-theft device even during a power failure without sounding false alarms.