H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 36/00 (2006.01) G08B 13/00 (2006.01) H01H 9/00 (2006.01) H01H 9/16 (2006.01) H01H 35/24 (2006.01)
Patent
CA 2524563
A tamper detection switch is disclosed primarily for use in an enclosure of a security system component. The enclosure has a base and a cover that may be repositioned relative to the base. One of the cover and the base holds a conductive magnetic element free to translate within a predetermined range generally perpendicular to the respective cover or base. The other of the cover and the base holds at least two ferrous metal contacts of an open tamper circuit in proximity of a conductive magnetic element. In the closed position the conductive magnetic element bridges the ferrous contacts and closes the tamper circuit. Attempts to tamper with the enclosure separate the ferrous contacts from the conductive magnetic element, opening the tamper circuit and signaling a possible attack.
Lee Robert E.
Piel Kevin G.
Wilson George N.
Gowling Lafleur Henderson Llp
Honeywell International Inc.
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