G - Physics – 08 – B
Patent
G - Physics
08
B
G08B 13/02 (2006.01) B62H 5/00 (2006.01) B62H 5/20 (2006.01)
Patent
CA 2279078
Embodiments of an alarm system are described, which may be mounted or built-in to a bicycle or other device which is in need of anti-theft protection. A loud alarm is connected to or mounted in the protected device, and is operatively connected to either or both: a lock that anchors the device to a stationary object, and/or parts of the protected device that might be stolen or vandalized. The alarm unit is built and wired in such a way that the lock or parts of the protected device may not be significantly tampered with or removed without triggering the alarm. For example, the alarm system is adapted to sound if a bicycle lock is tampered with or if sensors transmit that a bicycle part is being moved or tampered with. Externally-mounted alarm units preferably include a weather-proof casing, which contains a unique clamping feature that makes the alarm tamper-resistant or tamper-proof. The alarm casing may contain a sound chamber that preferably amplifies the alarm sound, waterproofs the alarm component, and prevents a thief from muffling the sound. In internally-mounted embodiments, the alarm may be mounted inside the bicycle frame with sensors mounted preferably on the outside of the various bicycle parts that are frequently stolen with signal wires travelling through the internal channels of the bicycle frame. The alarm unit connection to a U-shaped bicycle lock includes a cable which can only be removed when the alarm is disabled and which has a multiple wire system for presenting a challenge to those attempting to cut the connection between the alarm and lock. Preferably, the alarm casing may only be opened by a special key, and momentary switches in the alarm unit trigger the alarm is anyone tries to remove the alarm unit by abusive methods such as by prying or hammering. Other features may include a transmitter that signals an owner's receiver when the alarm is triggered, and/or a dual-use of the system as both alarm and signalling horn.
Theofanous Vickie
Tikkanen Paul
Theofanous Vickie
Thompson Lambert Llp
Tikkanen Paul
LandOfFree
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