Method and device for cutting off a thick-walled pipe
CA 2583130 C · Owner: Plantool Oy · Inventors: Salminen, Keijo; Rantala, Jari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for cutting off a thick-walled pipe (3) wherein the pipe to be cut comprises an inner circumference closer to the longitudinal axis of the pipe and an outer circumference further from the longitudinal axis of the pipe. The method comprises bringing the cut-off point of the pipe to the cut-off point of a sawing unit locking the pipe in its , place by means of a fastener sawing the pipe at the cut-off point by moving a saw (2) of the sawing unit towards the centre of the pipe (3) the sawing unit , comprising at least two saws. The method is characterized by moving each saw (2) of the sawing unit during the sawing radially towards the centre of the pipe …
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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 October 7, 2005 and granted May 8, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.