Method and apparatus for producing a multicoloured yarn from differently coloured part-threads of endless filament
CA 2235203 A1 · Owner: Weiss, Hans-Joachim · Inventors: Weiss, Hans-Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the Fig. 1 an apparatus known as such for producing a multicoloured yarn except that the part-threads 11 11.1 and 11.2 after texturising, in a texturising nozzle 5 are separated again into crimped part-threads 11.3 through 11.5 and according to the invention are compacted in after-compacting means 8 before these part-threads are jointly compacted in a collective compacting means 9 and subsequently are wound up as a yarn 12 in a winding device 10. The individual elements concerned are briefly described as cooling shafts 1, finish applicator means 2, pre-compacting means 3 and draw rolls 4. The further elements have been described earlier. The finish applicator means 2 as a rule are oil …
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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 January 10, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 10, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 10, 2019.
- 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.