Double-taper slip-on drill string stabilizer
CA 1237120 A · Owner: Beasley, Thomas R. · Inventors: Beasley, Thomas R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slip-on stabilizer 6 is provided for adjustable positioning along a drill collar 4. The stabilizer 6 includes a body 7 positioned around the drill collar 4 with a threaded section 18 on each end and at least one tapered inner surface 16, 17 with the tapering surface 15b, 17b beginning at the end of the interior threads 18 and tapered to a generally narrower interior diameter; a plurality of slip segments 11 with at least one tapered surface 29a, 29b complementary matching the tapered surface of the stabilizer body 7; a locking pin 13 and threaded end caps 9, 10 forcing the slip segment 11 toward the center of the stabilizer body 7 thereby wedging the slip segments 11 against the drill …
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 May 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
- 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.