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Expired Canadian patentCanada

Feed device suitable for use with wood flaking machines

CA 2015038 C · Owner: Pallmann Maschinenfabrik Gmbh & Co. Kg. · Inventors: Pallmann, Wilhelm

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

A device suitable for the continuous feeding of wood pieces of approximately the same length into flaking machines comprises a feed trough opening into the flaking machine behind which there is arranged a loading magazine whose cross section agrees with the feed trough. The lengths of wood are shaped into compact piles, which are then advanced cyclically into the flaking machine by means of a pushing plate. In order to be able to bring the pushing plate back over the log pile already prepared for further processing inside the loading magazine, the pushing plate is able to be slewed upon a support that can be moved parallel to the floor of the device, over both the feed trough and the …

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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 April 20, 1990 and granted November 2, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 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.
FiledApril 20, 1990
GrantedNovember 2, 1993
Term endedApril 20, 2010
Patent numberCA 2015038 C
Classification (IPC)B27B25/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 20, 1990Patent grantedNov 2, 1993Term endedApril 20, 2010

Sources & verification

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