Drill pipes feeding apparatus
CA 2360005 C · Owner: Marcotte, Hugues · Inventors: Marcotte, Hugues
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drill pipe feeding apparatus which eases the mechanical assembly of one pipe to another to make one long drilling pipe and vice versa. A comb on which the pipes are aligned: a gripping system grasps the pipes in the comb and supplies a drill with pipes. The gripper has a rapid solid, extensible structure which features a retractable head for transportation. A hydraulically-activated chain causes the primary mast to be extracted which in turn, drives a secondary mast which doubles the execution speed. The primary mast is positioned at an acute angle in relation to a positioning cart thus allowing easier access for the operator. 1
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 October 4, 2001 and granted June 17, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2023.
- 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.