Well flow control apparatus and method
CA 1046932 A · Owner: Otis Engineering Corporation · Inventors: Davis, Jerry B.; Gant, Guy W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A side-pocket mandrel for supporting a flow control device such as a gas lift valve along a well flow conductor and a method of operating same. The mandrel is connectible with pipe sections to form an integral length of a flow conductor and has a central born communicating with the bore of the flow conductor, an orienting sleeve along an end portion of the mandrel a, side-pocket portion communicating with the main bore a side-, pocket landing nipple in the side pocket portion communicating with side ports in the mandrel along the landing nipple a, sliding sleeve valve disposed in the landing nipple for controlling communication through the side ports opening into the landing nipple, and a …
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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
- Granted January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
- 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.