B - Operations – Transporting – 60 – Q
Patent
B - Operations, Transporting
60
Q
B60Q 5/00 (2006.01) B60Q 1/22 (2006.01) B60Q 1/34 (2006.01) G08B 3/10 (2006.01) H02K 7/00 (2006.01)
Patent
CA 2044386
A self-powered back-up alarm for mounting to the wheel hub of a heavy truck or like vehicle. The alarm includes a housing adapted to be mounted to a vehicle wheel hub. Inside the housing is a magnetized stator that is held stable by a counterweight mounted for free rotation to a spindle in the housing. Also mounted in the housing is a power supply including a coil positioned adjacent the stator in the housing and attached thereto so that it rotates about the stator when the wheel hub turns. A battery stores the energy developed across the coil when the wheel hub rotates. Also mounted inside the housing are sensors located adjacent the stator that similarly rotate with the wheel hub. The sensors, in combination with an associated detect circuit, produce a reverse motion signal whenever the vehicle backs up. An audio alarm, located in the housing, is actuated by the reverse motion signal and emits an audible warning whenever the vehicle backs up.
Hutchisson James
White Robert
Federal Signal Corporation
Smart & Biggar
LandOfFree
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