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Expired Canadian patentCanada

Cylindrical baler having bale-shape-responsive loading control system

CA 1250037 A · Owner: Kansas State University Research Foundation · Inventors: Lang, Clyde J.; Funk, Kent D.; Andra, Bryan K.

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

Abstract of the Invention, As the tractor and baler are driven straight down the windrow, hay is picked up and placed upon a platform conveyor which transfers the same rearwardly toward the baling chamber, during which transfer a deflector diverts the crop stream into an appropriate one of three axial sections of the chamber as determined by sensing and control mechanism associated with the baler. As the hay builds up in one of the sections, the sensors of the mechanism compare the size of that portion of the bale with the bale portion in the next adjacent chamber section, and once the differential between the two bale portions reaches a certain predetermined level, the control mechanism …

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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 February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2006.
  • 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 14, 1986
GrantedFebruary 14, 1989
Term endedFebruary 14, 2006
Patent numberCA 1250037 A
Classification (IPC)A01D39/00 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedFeb 14, 1986Patent grantedFeb 14, 1989Term endedFeb 14, 2006

Sources & verification

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