Reclosable wrapper sheet material handling system
CA 1319314 C · Owner: Signode Corporation · Inventors: Boeckmann, Hugo; Van Erden, Donald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for handling zipper-equipped wrapper sheet material to be used in a form, fill and seal, machine for wrapping product enables the wrapper sheet to be drawn from a supply with a flap sheet portion overlying a panel sheet portion and subsequently disposing the flap sheet portion such that it is folded back away from the panel sheet portion to fully open up the wrapper sheet material. The folding over of the flap sheet portion brought about by apparatus which permits continuous flow of wrapper sheet to the form fill, and seal machine at conventional machine high speed production rates. The system is made adjustable to handle zipper-equipped wrapper sheet material of various sizes. …
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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 22, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 22, 2010.
- 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.