Tamper resistant magnetic contact apparatus for security...

G - Physics – 08 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G08B 13/08 (2006.01) G08B 29/04 (2006.01) H01H 36/00 (2006.01)

Patent

CA 2460593

A tamper resistant magnetic contact switch apparatus for alarm systems that has a plurality of magnetic reed switches configured in a logic circuit and a magnetic pack for actuation. A magnetic shield disposed around the switches defines an actuation zone. In combination with the magnetic shield preventing magnetic fields from reaching the switches from locations outside the actuation zone, the magnet pack activates two of the five switches when positioned within the actuation zone to complete the logic circuit, The magnet pack does not, however, activate any of the other switches. If any of the other three switches are activated, or if either of the two activated switches are deactivated, the logic circuit is broken and the alarm circuit is activated.

L'invention concerne un appareil à interrupteurs magnétiques inviolable pour systèmes d'alarme, qui présente plusieurs interrupteurs à lames souples configurés dans un circuit logique et un boîtier magnétique de déclenchement. Un blindage magnétique disposé autour des interrupteurs délimite une zone de déclenchement. Associé au blindage magnétique qui empêche les champs magnétiques d'atteindre les interrupteurs à partir d'emplacements extérieurs à la zone de déclenchement, le boîtier magnétique active deux ou cinq interrupteurs lorsqu'il est placé dans la zone de déclenchement pour compléter le circuit logique. Toutefois, le boîtier magnétique n'active aucun des autres interrupteurs. Si l'un quelconque des trois autres interrupteurs est activé, ou si l'un ou l'autre des deux interrupteurs activés est désactivé, le circuit logique s'interrompt et le circuit d'alarme est activé.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Tamper resistant magnetic contact apparatus for security... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tamper resistant magnetic contact apparatus for security..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper resistant magnetic contact apparatus for security... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2024726

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.