Cutting device for a winding machine for winding a web of material, particularly a paper web
CA 2080625 C · Owner: Ruff, Hans-Albrecht · Inventors: Ruff, Hans-Albrecht; Wieland, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a cutting device for a winding machine for winding a web of material particularly a paper web, the winding machine having two support rollers, one of the support rollers being partially wrapped by the web of material which is advanced upward from underneath the support rollers and introduced into a space between the support rollers to, be wound into a finished roll which rests on the winding bed formed by the two support rollers. A tiltable cutting device includes a blade, a blade carrier a, connecting link, and a support structure. The blade carrier and the support structure are pivotally connected to each other by the connecting link in such a manner that the …
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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
- Filed October 15, 1992 and granted April 21, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 2014.
- 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.