Liquid cooled rotary valve cover
CA 2198330 A1 · Owner: Smith, Stephen · Inventors: Smith, Stephen; Vranckx, Dale
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a liquid cooled rotary valve cover having a main body with intake ports corresponding to the fuel/air mixture intake ports in the crankcase of the engine and a cover attached to the main body. In the main body and cover are a series of channels for the circulation of coolant through the body during use of the engine. At either end of the body are access ports connecting to the engine's cooling system.
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 February 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 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.