Pipe transfer system
CA 2115810 C · Owner: Brugman, James D. · Inventors: Fox, Preston R.; Boyadjieff, George I.; Brugman, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pipe handling machine for moving well pipes arranged essentially horizontally and essentially parallel to one another on a deck, and including a carriage which may contain an operator's control cabin and is mounted by tracks for movement transversely of the pipes, with an arm projecting from the carriage and adapted to support a pipe from one of its ends as a cantilever and with the arm being power actuable upwardly and downwardly to raise and lower a pipe and in its elevated position shift the pipe laterally with the carriage. The arm may deliver the pipe to or receive it from an inclined conveyor leading to the rig floor. Preferably, two such machines are provided for shifting pipes on …
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 16, 1994 and granted October 20, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2016.
- 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.