Plug with gripping means
CA 2601200 C · Owner: Syse, Harald · Inventors: Aleksandersen, Jostein; Syse, Harald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention regards a plug (2) for sealing off a pipeline (1) comprising a main body (3), sealing means (6) and gripping means (5) arranged circumferentially around the main body (3) and actuation means (4) for operating the sealing and gripping means (5,6) where the gripping means (5) comprise at least one slip (10) with an outer surface (11) for contact against the pipe wall and an inner gliding surface (12) arranged in abutment against a first angled guiding surface (21), forming an angle with a centre axis of the plug (2), so that the gripping means (5) when actuated is moved relative to the guiding surface (21) to move the slips (10) in a radial direction where the …
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 February 3, 2006 and granted July 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2026.
- 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.