Wheel failure detection and warning system
CA 2199452 C · Owner: Babluck, Roger A. N. · Inventors: Babluck, Roger A. N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for detecting and signalling the failure of a wheel or a wheel set of a truck or trailer type of vehicle includes a plurality of equiangularly spaced magnets fixed to the wheel rim and facing inwardly of the vehicle to define a magnet plane. An induction-type sensor is mounted to a non-rotating axle support opposite the magnets so as to have a train of electrical pulses magnetically induced therein should a rotating magnetic field created by the rotating magnets intrude into a predetermined acceptable spacing of the magnet plane from the sensor. The sensor is connected to a transformer which will step up the sensor signal to activate an indicator in the vehicle cab to warn the …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed March 7, 1997 and granted October 10, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.