Pneumatically actuated valve for internal combustion engines
CA 2514922 C · Owner: Lim Technology, Llc · Inventors: Mikhailov, Konstantin; Klein, Jeffrey F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatically actuated valve assembly for use as intake and/or exhaust valves on two- ~or four-stroke internal combustion engines. The assembly includes a valve (100), valve housing (200) and compressed gas distribution , and timing mechanisms (Figures 5-8). The valve (100) is comprised of a short light weight hollow cylindrical body with a capped lower end and an opened upper end. The valve is further defined by a plurality of ports (104) adjacent to the lower end and a collar (198) encircling the body adjacent the upper end. The valve housing (200) is hollow and tubular having a larger diameter upper section and a smaller diameter lower section in which the valve (100) slides up …
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 30, 2004 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2026.
- 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.