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Expired Canadian patentCanada

Device for folding from behind the flaps of a box blank

CA 1268979 C · Owner: Bobst S.A. · Inventors: Genoud, Jean-Marc; Vaclavik, Ivan

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 device includes at least one rotary folder (11) positioned on a transverse shaft (12) mounted in a cradle (38). The cradle (38) can be shifted vertically in guides (29 30) on, the faces of two lateral frames. The vertical shifting of the cradle (38) is controlled by the motor driving setting screws (54) through a transverse axle (62) and pinions (60, 61). The rotation, of the rotary folder (11) and the vertical positioning of the transverse shaft (12) are controlled according to the position of the strike point (A) of the hook tip (4) with regard to the creasing line (5) of the box blank (2). The device is used on foldergluers processing cardboard. :::

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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 May 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
  • 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 14, 1987
GrantedMay 15, 1990
Term endedMay 15, 2007
Patent numberCA 1268979 C
Classification (IPC)B31B50/26 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedApril 14, 1987Patent grantedMay 15, 1990Term endedMay 15, 2007

Sources & verification

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