Valve component for a frictionless guided valve
CA 1285849 C · Owner: Routledge, Michael · Inventors: Williams, David Godfrey; Williams, David Godfrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite valve plate for use in a plate-type nonreturn valve comprises an outer valve closure member (8) having a central aperture (9) and a planar guide member (1) locatable in said central aperture (9) and being capable of providing frictionless guidance of the valve closure member (8), with said guide member (1) being locatable within said aperture (9) by location means (4 5, 6).
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 July 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2008.
- 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.