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Expired Canadian patentCanada

Edger with belt braking device

CA 2024530 C · Owner: Fujikawa, Tetsuzo · Inventors: Titze, James R.; Niosi, Donald E.; Fujikawa, Tetsuzo

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 present invention relates to an edger with a belt braking device, including a belt driving device and a cutter blade, which are arranged at the side of an edger vehicle. A bearing housing portion of the cutter blade is provided for forward and rearward movement, a belt cover for covering the whole driving belt is fixed to the edger vehicle and a belt, braking device is arranged between the front end of the belt cover and the front driven pulley, whereby performing ON-OFF operation of a clutch and engagement/ disengagement of a brake simultaneously is enabled. In this way the fixed belt cover, can be compact and the operation for changing of working conditions can be simplified.

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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

  • Filed September 4, 1990 and granted January 25, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 4, 1990
GrantedJanuary 25, 1994
Term endedSeptember 4, 2010
Patent numberCA 2024530 C
Classification (IPC)A01D34/84

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedSep 4, 1990Patent grantedJan 25, 1994Term endedSep 4, 2010

Sources & verification

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