Method of producing a container and apparatus herefor
CA 1069422 A · Owner: Kooperativa Forbundet (Kf) Ekonomisk Forening · Inventors: Hoden, Ebbe S.; Eklange, Bo R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a method and an apparatus for producing a sleeve from a heat-sealable foil blank wherein the blank is, wrapped around a mandrel by means of a strip of flexible material acting on the side of said blank remote from the mandrel. A strip section engaging the blank is held tensioned between two strip-guides which are movable around the mandrel to successively place strip material, and therewith also the foil blank, against the mandrel until the mandrel is surrounded by said blank and two opposite edge portions of the blank overlap each other. The overlapping edge portions of the blank are welded together by heating a portion of said strip material placed on top of said …
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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.