Apparatus for reverse stranding and a method in connection with stranding and reverse stranding
CA 2045320 C · Owner: Nextrom Holding S.A. · Inventors: Karhu, Raimo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reverse stranding apparatus for the reverse stranding of conductors to produce cables or the like and to a method in connection with stranding and reverse stranding. In the invention, the conductors are drawn from a distributor means into a nozzle or equivalent through peripheral tubes circumferentially surrounding a central tube and being twistable about the central tube recurrently in opposite directions. To facilitate the passage of the conductor a pressurized, fluid is fed through the peripheral tube upstream ends into the peripheral tubes during the drawing of the conductors to produce oscillation whereby the conductor passing through each peripheral tube remains substantially …
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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 June 24, 1991 and granted March 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 24, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2013.
- 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.