Connector
CA 1213630 A · Owner: Dril-Quip, Inc. · Inventors: Reimert, Larry E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
22-, Abstract of the Disclosure, Proper alignment of threads when joints of casing are made up in hostile environments, such as on off-shore floating platforms subject to being buffeted by wave action is provided, by means of an improved box and pin connector. The pin has a substantially tapered threaded section whose small diameter end terminates in a lower guide section and whose large diameter is adjacent a larger diameter upper guide section. The box has a complementary section of internal oppositely tapered threads to mate with those on the pin as well as a smaller lower receptacle to receive the lower guide section on the pin and a larger receptacle to receive the upper guide section …
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
- Granted November 4, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 2003.
- 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.