Transmission provided with a variable v-belt transmission and a hydrodynamic transmission
CA 1107536 A · Owner: Van Doorne'S Transmissie B.V. · Inventors: Van Der Hardt Aberson, Frederik E. C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transmission unit comprises a hydrodynamics transmission coupled to a variable ratio V-belt transmission. The hydrodynamic transmission includes lock-up means operable to establish direct drive therethrough the, lock-up means being actuated by fluid pressure from a fluid cylinder which controls movement of one of the flanges of the primary pulley of the V-belt transmission and thus controls the V-belt drive ratio.
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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
- 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.