Wire cable for suspension tasks, in particular for bucket cables, submarine cables, or cable railroad cables
CA 1301026 C · Owner: Drahtseilwerk Saar Gmbh · Inventors: Verreet, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The tensile force that acts on a wire cable that is suspended over a large height differential such as a bucket cable, is equal to the useful load at the lower end of the wire cable and at the hanging length of the wire cable is equal to the useful load augmented by the weight of the cable beneath the point that is under consideration. The turning moment that is generated in the wire cable thus increases in an upward direction from the lower end of the cable, and there is no equilibrium of the turning moment along the length of the wire cable. This results in twisting within the cable structure, until such a time as a state of equilibrium is reached. This leads to unwinding in the upper …
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
- Granted May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
- 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.