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:
Sep. 13, 1994
Filed:
Oct. 23, 1992
Robert C Thurmond, Largo, FL (US);
Edward J DiCarlo, New Port Richey, FL (US);
Fred W Herman, Tampa, FL (US);
Dennis L Hogan, St. Petersburg, FL (US);
John L Lynch, Holiday, FL (US);
Hildan B Russell, St. Petersburg, FL (US);
Security Tag Systems, Inc., Deerfield Beach, FL (US);
Abstract
A pin-and-clutch theft-deterrent device that enables instantaneous detection of separation-force tampering with the theft-deterrent device. The device includes a pin in one component and a clutch assembly in a second component for attaching the device to an article to be protected by grasping the pin with the clutch to provide a predetermined retaining force for resisting separation of the components by prying or pulling the components apart; a force-sensitive switch assembly for detecting application to the two components of at least a predetermined threshold separation force applied in opposition to the predetermined retaining force; and a transponder coupled to the switch assembly for responding to an irradiated interrogation signal by radiating an alarm signal when the switch assembly detects application to the two components of at least the predetermined threshold separation force. A system for detecting attempted removal from a protected article of the theft-deterrence device is installed in proximity to a secluded area of a store, such as a changing room.