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Expired Canadian patentCanada

Geared torque selector

CA 1112903 A · Owner: Eaton Corporation · Inventors: Hicks, Bradford W.

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

An auxiliary transmission unit is connected to the input of a power divider, which power divider is connected between a pair of pinion shafts for respectively driving the front and rear axles of a tandem axle construction. The power divider includes at least one pair of meshing axle gears drivingly interconnected between the pinion shafts for transmitting torque to each of the axles. The auxiliary transmission unit includes a single pair of meshing transmission gears, one thereof being associated with the transmission input shaft and the other being associated with a parallel countershaft. The output of the transmission unit comprises one of the shafts of the power divider. A clutch sleeve …

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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 November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
  • 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 18, 1979
GrantedNovember 24, 1981
Term endedNovember 24, 1998
Patent numberCA 1112903 A
Classification (IPC)F16H3/08 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedApril 18, 1979Patent grantedNov 24, 1981Term endedNov 24, 1998

Sources & verification

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