Transmission gearing arrangement
CA 1258780 A · Owner: General Motors Corporation · Inventors: Klemen, Donald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure: A planetary gearing arrangement for automotive transmissions wherein a fourth simple planetary gear set and a fourth brake are added to a gearing arrangement containing three simple planetary gear sets, three brakes and two clutches. In the fourth planetary gear set, the sun gear is connected to the input shaft, the carrier is connected to the fourth brake, and the ring gear is connected to the carrier and to the ring gear of two of the planetary gear sets described in the above-mentioned patent. The gearing arrangement of this invention achieves nine forward speed ranges and one reverse speed range with only single transition shifts and also has the capability …
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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 29, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 29, 2006.
- 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.