Valve having a valve member which engages a valve seat
CA 2244690 A1 · Owner: Gingras, Denis · Inventors: Gingras, Denis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve includes a valve body and a valve member. The valve body has a fluid passage extending therethrough. A recessed valve seat is axially disposed in the fluid passage in a downstream orientation. The valve member has an upstream directed tip which mates with the valve seat. The tip has an axial pressure port and a deformable annular contact surface. Pressure exerted within the pressure port causes the annular contact surface to deflect outwardly thereby enhancing the seal between the valve member and the valve seat as pressure increases.
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 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 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.