Automatic transmission
CA 1161277 A · Owner: Van Doorne, Martinus P.J.H. · Inventors: Van Doorne, Hubertus J. (Deceased)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title:, Automatic transmission. Abstract of the disclosure. An automatic transmission with a section controlling the transmission ratio between an input shaft and an output shaft. The section comprises a central shaft carrying at least one radially extending shaft with a first set of gear wheels drivable by the input shaft. Depending on the desired torque-speed ratio, the gear wheels can cooperate with a second set of gear wheels which in a torque-dependent fashion are spring-loaded so as to be locked from rotation. The direction of rotation of the output shaft can be reversed with an adjusting mechanism.
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 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2001.
- 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.