Patent Yard Sign in
Expired Canadian patentCanada

Hydraulic continuously variable speed transmission

CA 1320099 C · Owner: Suzuta, Takeo · Inventors: Yamaguchi, Kouji; Suzuta, Takeo; Maki, Kazuya

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A hydraulic continuously variable speed transmission comprises means for detecting speed reduction ratio of said continuously variable speed transmission means for detecting, accelerator opening and means for detecting vehicle speed. During running when the means for detecting accelerator opening detects a fact that accelerator opening has been fully closed, the means for detecting speed reduction ratio detects the speed reduction ratio at the moment, and then an operation initiating vechicle speed of said clutch valve is determined based on the detected speed reduction ratio, and when the vehicle speed detected by the means for reduction vehicle speed is reduced to the operation initiating …

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 July 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 13, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 12, 1988
GrantedJuly 13, 1993
Term endedJuly 13, 2010
Patent numberCA 1320099 C
Classification (IPC)F16H61/46 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 12, 1988Patent grantedJuly 13, 1993Term endedJuly 13, 2010

Sources & verification

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