Method and an arrangement for the feeding of a material web
CA 1238060 A · Owner: Aktiebolaget Tetra Pak · Inventors: Billberg, Alf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The feeding of a patterned material web for processing in register with the pattern of the material web is carried out usually by stepwise first feeding of the material web and subsequent fine feeding or register correction. To this end devices for driving, keeping in register and processing of the material web arranged successively are used. A more space-effective method and arrangement for the feeding of a material web ----is obtained by making use of a web feeding unit---- for feeding as well as correction of register. The web feeding unit---is provided for this purpose with two driving devices-----which during operation are used alternately for feeding and register correction …
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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 June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.