Web dividing and rewinding machines
CA 1303000 C · Owner: Kataoka, Hiroshi · Inventors: Kataoka, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A web dividing and rewinding machine includes a front section and rear section which are of similar construction and operate in a similar manner, and slitter devices arranged between the front and rear sections. Each section includes a contact roller and a roll core support means for a rewind roll and a contact pressure between the contact roller and the rewind roll is held constant in operation. The rewind roll is controlled to move in response to increments of the build-up of the roll in a longitudinal direction of the web to be wound on the core.
Read the whole patent
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 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 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.