Apparatus for controlling machines for making bags or sacks
CA 1310847 C · Owner: Windmoller & Holscher · Inventors: Feustel, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for controlling machines for making bags or sacks which have been severed by welding from continuous tubular or semitubular films or synthetic thermoplastics comprises at least one pair of pinch rollers for feeding the continuous film, which pinch rollers are driven via a transmission by a motor, and also comprises a pair of welding jaws for providing the continuous film with seam welds, transverse seam welds or severed transverse seam welds, a second motor for actuating said pair of welding jaws via a drive mechanism, and optional further cutters and the like, which are provided with drives. A central processing unit is provided, by which the motors are controlled in such a …
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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 December 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 2009.
- 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.