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Expired Canadian patentCanada

Rotary wind-powered engine

CA 1298792 C · Owner: Schonell, Jurgen · Inventors: Schonell, Jurgen

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

A drum-shaped, rotary wind-powered engine has a cylindrical tube mounted coaxially with respect to the rotation axis of the engine, and circular end plates on each end of the cylindrical tube . At least four sails with a curved streamlined profile which swivel to a limited degree near the edge of both end plates on swivel axes are, mounted parallel to said rotation axis. The sails are distributed on the circumference of the engine at equal circumferential distances and are, swivellable with their noses in front on the swivel axes in the region between the edge of the end plates and the cylindrical tube

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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 April 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 14, 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.
FiledMarch 7, 1988
GrantedApril 14, 1992
Term endedApril 14, 2009
Patent numberCA 1298792 C
Classification (IPC)F03D7/06 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedMarch 7, 1988Patent grantedApril 14, 1992Term endedApril 14, 2009

Sources & verification

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