Refrigeration valve
CA 1289372 C · Owner: Eaton Corporation · Inventors: Ruud, Carlton Maynard; Starr, Keith Elwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve 10 is disclosed for effectively sealing an opening 11 in an accumulator tank 12 for a refrigeration system holding a refrigerant under very high pressure. The valve stem 17 has a cylindrical portion 29 which increases in diameter toward the flange 28 forming an arcuate concave surface 30 and a base flange 27 having a diameter larger than the opening 11 to provide an effective seal.
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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 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.