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Expired Canadian patentCanada

Wobble plate type compressor with variable displacement mechanism

CA 1305689 C · Owner: Takai, Kazuhiko · Inventors: Takai, Kazuhiko

CIPO record

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

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Abstract From the Canadian patent

A wobble plate type compressor with a variable displacement mechanism includes a compressor housing which is provided with a crank chamber and a cylinder block in which a plurality of cylinders are formed. A drive shaft is rotatably supported in the compressor housing. A cam rotor is fixed on the drive shaft and variably connected to an inclined plate through a hinge mechanism. A wobble plate is adjacent the inclined plate. Cam rotor rotary motion is converted into wobble plate nutating motion. A plurality of pistons are coupled with the wobble plate each of which is reciprocably fitted within a respective one of the cylinders and of which the stroke volume is changed in accordance with …

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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 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 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.
FiledFebruary 19, 1988
GrantedJuly 28, 1992
Term endedJuly 28, 2009
Patent numberCA 1305689 C
Classification (IPC)F04B1/26 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 19, 1988Patent grantedJuly 28, 1992Term endedJuly 28, 2009

Sources & verification

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