Clutches
CA 1045998 A · Owner: David Brown Tractors Limited · Inventors: Ashfield, Herbert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An engine is combined with a dual clutch assembly comprising independently engageable and disengageable power takeoff and drive clutches in tandem. To minimise the overall length of the combination despite the use of twin plates in the drive clutch that face of the flywheel remote from the engine has a counterbore defined by a recessed driving surface and a surrounding axiallyprojecting flange, the power take-off clutch being disposed partially within this counterbore. circumferentially-spaced radially-outwardlyprojecting lugs on the pressure plate for the power take-off clutch are slideable axially in radial slots in the flange.
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 January 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 1996.
- 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.