Engine de-compression mechanism
CA 1073293 A · Owner: Janes, Robert W. · Inventors: Janes, Robert W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve de-activator for de-compressing selected cylinders of an internal combustion engine by locking open the valve or valves of end cylinders. By de-compressing a cylinder the normal vacuum and pressure of compression are destroyed and the engine ceases to run on that cylinder thereby saving, fuel. End operation is particularly suitable for high-speed driving, where only a part of the total engine power is required.
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
- Granted March 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 1997.
- 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.