Automated pipe racking process and apparatus
CA 2442379 C · Owner: Woolslayer, Joseph R. · Inventors: Woolslayer, Joseph R.; Duncan, Rod
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automated pipe racking apparatus for a drilling rig having an elevator suspended over a well bore. An arm support member is rotatable about an axis parallel to the well bore. A gripper arm extends from the arm support member along an axis normal to the axis of rotation of the arm support member. A gripper head assembly extends from the gripper arm the gripper head assembly having a pair of opposed arcuate gripper fingers, each said finger rotatable by a motor.
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 24, 2003 and granted January 11, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2025.
- 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.