Method of drawing large-size elongate cable for installation
CA 2078022 C · Owner: Horiuchi, Tadanori · Inventors: Hanano, Yoshiyuki; Horiuchi, Tadanori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A large-size is continuously drawn from a container with a plurality of spaced cable drawing machines associated with respective slave controllers controlled by a master controller. A control signal is supplied from the master controller to the slave controllers to actuate the cable drawing machines at substantially the same variable speed for thereby drawing the electric cable from the container along a predetermined cable laying route. The speed at which the cable drawing machines are actuated may selectively be varied. A slack may be formed in the electric cable between two of the cable drawing machines which are closer to the container than the other cable drawing machines.
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 September 11, 1992 and granted September 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2014.
- 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.