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Expired Canadian patentCanada

Belt type continuously variable transmission for vehicles

CA 1296548 C · Owner: Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co. Ltd .) · Inventors: Hattori, Torao

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A hydraulic pressure controller is provided between a hydraulic actuator for changing the effective radii of a drive Vpulley mounted on an input shaft and a driven V-pulley mounted on an output shaft and a hydraulic pump is provided for supplying hydraulic pressure to the hydraulic actuator. The hydraulic pressure controller is controlled by an input torque sensor and a speed change ratio sensor, whereby the hydraulic pressure supplied to the hydraulic actuator is automatically controlled in proportion to the input torque received by the input shaft and the speed change ratio between the input and output shafts.

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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 March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 22, 1988
GrantedMarch 3, 1992
Term endedMarch 3, 2009
Patent numberCA 1296548 C
Classification (IPC)F16H61/30 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedApril 22, 1988Patent grantedMarch 3, 1992Term endedMarch 3, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.