Control circuit for regulating a knife
CA 1314604 C · Owner: Arlt, Gerhard · Inventors: Arlt, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a control circuit for regulating a knife. To manufacture synthetic pockets from a continuous foil tubing web a knife in, the web produces an undulatory cutoff. In the prior art, the knife is supported by a rotating cutter head which can be moved diagonally to the guide motion of the web. The cutter head is shifted and rotated through a groove of a drum controller. The disadvantage of this is that a separate drum controller is required for each undulatory cutoff. The control circuit should make it possible to manufacture various types of undulatory cutoffs. The control circuit of the present invention has a subdivider circuit which divides the length of a cutoff …
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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 March 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 16, 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.