Profiled plate valve
CA 2396712 A1 · Owner: Coltec Industrial Products, Inc. · Inventors: Penza, Neil C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The subject application is directed to a compressor valve (100) having a valve seat (110), a valve guard (120) and a sealing plate (130) with contoured sealing surfaces, the valve seat having defining inlet flow ports (116) for admitting a controlled medium into the valve the lower surface of the valve , seat including at least one seating surface the valve guard having a recessed , area and defining outlet flow ports (126) for discharging a controlled medium from the valve, the sealling plate positioned within a cavity between the valve guard and valve seat and moves relative to the lower surface of the valve seat between an open and closed position the upper surface of the , sealing …
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 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2023.
- 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.