Method and apparatus to vibrate a downhole component
CA 2372355 C · Owner: Thomeer, Hubertus V. · Inventors: Jeffryes, Benjamin P.; Leising, Lawrence J.; Zheng, Shunfeng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for use in a wellbore comprises a housing having a longitudinal axis , and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing , to vibrate the housing. In another arrangement an apparatus for use in a , wellbore , comprises a housing and at least one impact element rotatably mounted in the housing. , The at least one impact element is rotatable to oscillate back and forth to impart a , vibration force to the housing.
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 20, 2002 and granted February 15, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2024.
- 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.