Method and apparatus for generating a yarn composed of at least two yarn components
CA 2230431 A1 · Owner: Maschinenfabrik Rieter Ag · Inventors: Meyer, Roger; Maier, Jorg; Weiss, Hans-Joachim
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 generating a yarn composed of at least two yarn components and an apparatus for generating a yarn of this type with at least two processing stages at least one of which is a compacting stage. A yarn component is supplied either as a filament bundle from an extrusion beam or as a filament bundle or as a staple fibre yarn from a package. Treating stages are designated with the reference number (2) and the compacting stage with the reference number (3) in which compacting stage the individual yarns (5 through 5.4) are compacted into a yarn (7) which subsequently is, collected in a collecting stage where it is e.g. wound into a package. The Fig. 2 differs …
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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 February 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2020.
- 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
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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.