Vehicle transmissions
CA 1188134 A · Owner: Ab Volvo · Inventors: Hyttinen, Veikko J.; Hedlund, Sven B.; Miller, Albert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Epicyclic gearing for a vehicle transmission includes at least four epicyclic gear trains. The planet carrier of the fourth train is secured to the output shaft and the sun wheels of both the first and fourth trains and are connected to the input shaft by a clutch. The first and fourth trains each provide independently a low ratio, each of which can be chosen as desired while the second and third gear trains provide higher ratios.
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 June 4, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2002.
- 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.