A wheel motor
CA 2450839 A1 · Owner: Thornley, Philip · Inventors: Thornley, Philip
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This patent applies to a wheel motor which generates a propulsive force through the use of a, chambered or segmented tire. Consider a standard automotive rubber tubeless tire with, say 12, independently inflatable rubber bladders arranged in place of a normal tube. Then by increasing, the pressure in one of the chambers in contact with the ground but not centred on flue ground, contact patch, the wheel will rotate as it "falls" off of this higher pressure chamber. By continuous, adjustment of chamber pressures continuous rotation can be obtained. Similarly these chambers or, segments could be filled with other fluids or expansible solids.
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 December 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2025.
- 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.