Fluid couplings
CA 1076903 A · Owner: Holset Engineering Company Limited · Inventors: Main, Peter L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements in and relating to fluid couplings", A viscous shear fluid coupling comprising a first annular, rotatable member and a second rotatable member. The second member has an internal annular chamber in which the first annular member is received. The first and second annular members have opposed radially extending surfaces in closespaced relationship. Viscous coupling fluid is provided in said chamber for transmitting torque from one member to the other member upon rotation of the one member as a driving member to rotate the other member as a driven member. At least one groove is provided across each said radially extending surface of the driving member. The radially inner end of …
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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 May 6, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 6, 1997.
- 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.