Method and device for orienting individual fibres and/or filaments present in a web
CA 2377419 A1 · Owner: Bathelier, Xavier · Inventors: Bathelier, Xavier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for obtaining adequate orientation of elements constituting a web such as fibres and/or filaments, for example derived from a card characterised in that it consists in: subjecting the fibre to a pre-looping step produced by the interpenetration of a first set of looping discs (11) borne on a common transverse shaft (10) and continuously driven in rotation at a first speed (V1) and of a first set of fixed looping elements (12) the set of looping discs (11) and the set of looping elements (12) having a predetermined gauge (j) so as to cause the fibres and/or filaments to be pre-looped with an undulating value or interval (j). retaining with blocking means said …
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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 July 12, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2022.
- 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.