Butterfly valve connection piece for an internal combustion engine
CA 2458184 A1 · Owner: Kohlen, Peter · Inventors: Kohlen, Peter; Oppermann, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a butterfly valve connection piece for an internal combustion engine, comprising a housing (1) and a throughflow opening (2) of said housing (1), in which a butterfly valve (7) is pivotably arranged around a pivotable axis extending in a perpendicular manner with respect to the longitudinal axis (9) of the throughflow opening (2) the butterfly valve is , used to close the throughflow opening (2). When in a closed position the , butterfly valve (7) is inclined at a defined setting angle (10) in relation to the longitudinal axis (9) of the throughflow opening (2). The radial peripheral edge (8) thereof rests against the inner wall of the throughflow opening (2) …
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 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2024.
- 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.