Butterfly valve for regulating a fluid flow
CA 2258959 A1 · Owner: M.G.I. Coutier Sa · Inventors: Bouvet, Thierry; Bordellier, Franck
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a butterfly valve for regulating a fluid flow rate in particular the air flow rate of an air distributor in an internal combustion engine fuel injector and the method for making said valve. Said valve (1) comprises a housing (2) traversed by a conduit (3) circulating the fluid wherein is provided a butterfly induction shutter (4) mounted on a control axis (5) perpendicular to the conduit axis. The invention is characterised in that it comprises a ring (6) coaxial with the conduit and set between the housing (2) and the induction shutter (4) the ring (6) being made of a material with good dimensional stability and the housing being moulded around said ring in a …
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 April 16, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2020.
- 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.