Device for making a wire strand with changing twist direction
CA 2200861 C · Owner: Bergsmann, Ludwig · Inventors: Seibert, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for stranding cables from individual wires with alternate directions of lay (SZ stranding) in which there are a fixed guide (1) with drillings to accept the individual wires and several spaced storage discs (4) drivable in alternate directions and also with drillings to accept the individual wires to be stranded or a laying disc (6) drivable via drive discs (7) and transmission components (9), in which there is a common drive (8) for at least some of the drive discs (7), whereby there is a torsion elastic shaft (15) of any crosssection between the drive (8) and the drive discs (7).
Read the whole patent
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 28, 1995 and granted August 12, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2017.
- 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.