Coupling for pressure or vacuum fluid system
CA 1306271 C · Owner: Hunter, George Sherwood · Inventors: Hunter, George Sherwood; Hawker, Michael John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupling is provided for a pressure or vacuum fluid system having a bowl and filter head (10,26) that connect together by relative rotation to engage bayonet coupling formations (32,34, 94) thereof. When connected together the bowl (10) and filter head (26) have outer walls (16,104) overlapping with an intervening seal (22) therebetween. A pressure relief valve (38) is provided in one of the members (10). A latch (36,108) engages at an angular position of said members (10,26) where the bayonet coupling is established to prevent relative rotation of said members (10,26) and is prevented from engagement at other angular positions. The latch (36) is decoupled from the valve (38) when in its …
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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 August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 2009.
- 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.