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Expired Canadian patentCanada

Hydraulically actuated starting clutch assembly

CA 1287001 C · Owner: Mccoll, John W. · Inventors: Mccoll, John W.

CIPO record

Overview

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

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Abstract From the Canadian patent

HYDRAULICALLY ACTUATED STARTING CLUTCH ASSEMBLY ABSTRACT:, A hydraulically actuated starting clutch (10) adapted for a continuously variable transmission which is located at the output of the transmission to couple the vehicle wheels to the engine upon a signal from the throttle induced system oil pressure. The clutch includes a cover (52) connected to the drive shaft (11) through a hub (33) forming a pressure chamber (44) behind a piston (45), a Belleville spring (81) acted upon by the piston (45) and urging a pressure plate (62) against the clutch plate (65) and an end plate secured in the cover. Weights (85) are mounted on the Belleville spring (81) to compensate for the centrifugal …

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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 July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 5, 1985
GrantedJuly 30, 1991
Term endedJuly 30, 2008
Patent numberCA 1287001 C
Classification (IPC)F16D25/06 +1 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedDec 5, 1985Patent grantedJuly 30, 1991Term endedJuly 30, 2008

Sources & verification

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