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Expired Canadian patentCanada

Drive mechanism

CA 1291046 C · Owner: Hirmann, Georg · Inventors: Hirmann, Georg

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

The drive mechanism for a rotating part in particular a vehicle axle, possesses at least one digital-mechanical drive comprising an active wedge and means, which as determined by their design or optionally can be powered by various forms of energy, and which act directly or via energy storage reservoirs to produce impulses which are proportional to the linear or angular displacement of the drive. One such drive mechanism is used in muscle-powered vehicles or in stationary mechanisms. It consists of a mechanical impulse drive which as determined by the design or optionally can be powered by muscle power and/or a gaseous pressure medium. In such a drive a pump (6) taps off some of the drive …

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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 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.
FiledOctober 14, 1987
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1291046 C
Classification (IPC)B62M1/10 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedOct 14, 1987Patent grantedOct 22, 1991Term endedOct 22, 2008

Sources & verification

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