Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1992-10-23
1994-09-13
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
340505, 340665, G08B 1324
Patent
active
053472624
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.
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DiCarlo Edward J.
Herman Fred W.
Hogan Dennis L.
Lynch John L.
Russell Hildan B.
Callan Edward W.
Mullen Thomas
Security Tag Systems, Inc.
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