Method and apparatus for repairing a pipeline
CA 1249925 A · Owner: Trest "Juzhvodoprovod" · Inventors: Shlatgauer, Boris I.; Shishkin, Viktor V.; Medunitsa, Vladimir L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for reparing a pipeline comprises cleaning the pipeline from deposits concurrently with laying therein a flexible line which is used for drawing into the pipeline a traction cable and energy and mortar supply lines connected to a coating application means. In an apparatus for carrying out the method, a flexible line supply means is mounted on a cleaning means, behind the cutting tool thereof and compris-, es a chamber which is open at the end thereof and houses a, horizontally mounted reel with flexible line and a rotatable member for unwinding the flexible line from the reel.
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 February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2006.
- 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.