Valve assembly
CA 1333712 C · Owner: Esplin, Trevor · Inventors: Esplin, Trevor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve assembly for control of fluid flow in pipes, comprising a valve body member, a valve seat member and an annular sealing member which is arranged to be located around the periphery of the valve seat member by a locating means, in use the valve seat member and annular sealing member are separated from a valve seat and when the valve body member is forced against the annular sealing member, the annular sealing member then forms a seal with the valve body member and valve seat, wherein the valve seat member comprises a retainer ring which is arranged to fit tightly around the outer circumference of the annular sealing member.
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 December 27, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2011.
- 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.