Method for cutting a leader and a tail in a web in a papermaking machine
CA 2265087 A1 · Owner: Paprima Industries Inc. · Inventors: Hilker, Dieter H.; Caspar, Roman C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a method for forming a leader and a tail in a web of a papermaking machine that utilizes a water jet cutting apparatus having a nozzle.mounted for movement along a beam that extends transversally across the width of the web. The method includes the step of initially positioning the, water jet nozzle at one end of the beam outside of the first edge and activating the nozzle to spray a liquid jet from the nozzle. Thereafter a , leader, is formed in the web by moving the nozzle from the initial position to a predetermined position within the outside edge of the web at a chosen speed relative to the web travel speed. At this second predetermined position a slit is formed to …
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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 March 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2021.
- 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.