The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2025
Filed:
Jan. 19, 2022
Schlumberger Technology Corporation, Sugar Land, TX (US);
Frederic Pauchet, Clamart, FR;
Edmund Peter McHugh, Longford, IE;
J. Daniel Belnap, Lindon, UT (US);
Cheng Peng, Orem, UT (US);
David Wahlquist, Spanish Fork, UT (US);
Lynn Belnap, Spanish Fork, UT (US);
Ivan Tapia, Provo, UT (US);
Scott S. Dahlgren, Alpine, UT (US);
Neil Cannon, Woodland Hills, UT (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A needle for a choke valve assembly includes a base portion formed from a first non-superhard material and a tip portion formed from a superhard material. The needle also includes a brazed connection coupling the tip portion to the base portion. The brazed connection includes an insert formed from a second non-superhard material, in which the second non-superhard material is harder than the first non-superhard material and softer than the superhard material. In addition, the brazed connection includes a shim disposed between the insert and the base portion, a first layer of brazing material disposed between the base portion and the shim, and a second layer of brazing material disposed between the shim and the insert.