Valve assembly
CA 1182094 A · Owner: Keystone International, Inc. · Inventors: Holtgraver, Edward G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-, Abstract, A wafer-type valve for securing between two flange fittings comprises a valve body having a flowway therethrough connection formations integrally adjoining the valve bod and extending radially therefrom, a valve element mounted in the flowway, and adapter means adjoining the valve body and extending outwardly therefrom. First longitudinally extending connectors cooperate between the connection formations of the valve body and the adapters to connect the adapters to the valve body, while second longitudinally extending connectors cooperate between the adapters and the flanges of the flange fittings to connect the adapters to the flange fittings. The valve also includes a seat …
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
- Granted February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
- 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.