Form, fill and seal registration system apparatus and method including variable length compensation and out of registration restoration
CA 1295037 C · Owner: Hayssen Manufacturing Company · Inventors: Cherney, Dale M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system and method for an apparatus for sealing packages wherein a web of flexible packaging material having a series of registration marks is formed into tubing and fed past. a sealing device for sealing the tubing to form packages. As the tubing is fed past the sealing device a, photoeye detects the registration marks. A CPU responsive, to the photoeye, compares the location of registration marks relative to a window. A counter, responsive to the CPU sets, a delay length of tubing to be fed past the sealing device in response to the relative location of the registration marks and the window. The feeding of the tubing is stopped after the counter has been decremented to zero and …
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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 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 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.