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Expired Canadian patentCanada

Filled container end seal folding system with intermittent motion conveyor

CA 1187056 A · Owner: Tetra Pak International Ab · Inventors: Lothman, Stig A.

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 machine for the processing of packing containers of the type used for example for milk products. Such packing containers are manufactured from a filled material tube and are first given cushion-shape. By use of the machine in accordance with the invention they are subsequently converted to a substantially parallelepipedic shape. The machine comprises a transport means in the form of a wheel having radial holding devices for the cushion-shaped semi-finished products. The transport means can be rotated stepwise so that each individual packing container passes around processing stations disposed around the periphery of the transport means for the folding of corner lugs, sealing and shaping.

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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 14, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2002.
  • 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 24, 1982
GrantedMay 14, 1985
Term endedMay 14, 2002
Patent numberCA 1187056 A
Classification (IPC)B65B7/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 24, 1982Patent grantedMay 14, 1985Term endedMay 14, 2002

Sources & verification

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