Floating seal valve assembly
CA 1262225 C · Owner: Perrott, Charles H. · Inventors: Perrott, Charles H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve assembly for the control of pressurized fluids. The assembly comprises a casing housing a valve chamber with communicating inlet and outlet ports. A valve seat and valveoperating subassembly is associated with one of the ports. The valve-operating subassembly comprises a valve body threaded into the casing adjacent the valve seat. The valve body has an axial bore which receives a headed shaft having a seal washer mounted on its head in separable engagement with the valve seat. Resilient means e.g. a coil spring, urges the washer in the direction of engagement with the valve seat with a force less than the force of the pressurized fluid introduced into the chamber. The shaft and/or …
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 October 10, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 10, 2006.
- 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.