Side looking hall-effect vehicle speed sensor
CA 2259772 C · Owner: Mierzwinski, Eugene P. · Inventors: Mierzwinski, Eugene P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A speed sensor for sensing rotating speed of a wheel having projections. An elongated tubular sensor body connects to a flange the flange being adapted , from mounting in a housing wall in proximity to the wheel. A Hall-Effect sensor is provided within the sensor, body and circuitry is also located there for processing signals from the Hall- Effect sensor. The Hall-Effect sensor is positioned for sensing the projections of the wheel through a portion, of a peripheral sidewall of the cylindrical sensor body so that the Hall- Effect sensor is , "side-looking". An alignment mark is employed to position the Hall-Effect sensor in sensing, alignment with the wheel. A diameter of the flange …
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 January 21, 1999 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2021.
- 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.