High performance valve
CA 2028754 A1 · Owner: Pentesco, Harold T. · Inventors: Crim, Michael J.; Pecoski, Raymond P.; Green, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ball valve is disclosed having the characteristics of good sealing integrity throughout the thermal and mechanical stress of high pressure liquid flow. The valve main body (12) has a ball (16) with ring seat (18) and rotating stem (24) mounted therein and defining a linear control passage (14) therethrough. An integral hub (32) with proboscis member (34) and cooperating linear passage (38) is mounted in sealed interface on one side of main body (12) with a clamping device (36) circumferentially securing hub (32) and main body (12) together.
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 October 29, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2012.
- 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.