Brake control apparatus and method
CA 2295571 A1 · Owner: Pugh, Gavin Scott · Inventors: Pugh, Gavin Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Brake control apparatus is disclosed, the apparatus comprising: an electric motor arranged to drive a wheel; brake means operable to apply a braking force to inhibit the rotation of the wheel; input means operable to generate an input signal indicative of a desired angular velocity of the wheel; current monitoring means for generating a monitoring signal indicative of a current flowing through the electric motor; and control means for controlling the , supply of power to the electric motor in response to the input signal by generating a control voltage, and for controlling the brake means such that after setting the control voltage to zero the brake means apply the braking force at …
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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 July 10, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 2020.
- 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.