Valve gear for at least two simultaneously operated overhead valves
CA 2103754 A1 · Owner: Reitz, Dieter · Inventors: Reitz, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, To operate several overhead valves 5 6 of, an internal combustion engine simultaneously via a cam 18 using standard commercial cup tappets 7 8, a, crossbar 14 is placed over the bases of the cup tappets 7, 8. The crossbar is acted on between the axes of the valves 5, 6, either directly by the cam 18 or via a rocker arm. The crossbar 14 is secured against displacement by a contour 16 projecting between the cup tappets.
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 August 10, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2015.
- 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.