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:
Dec. 25, 2018
Filed:
Jun. 11, 2015
Applicant:
Schlumberger Technology Corporation, Sugar land, TX (US);
Inventors:
Rakesh Singh, Maharastra, IN;
Ke Ken Li, Missouri City, TX (US);
Michael Hui Du, Manvel, TX (US);
Fei Song, Stafford, TX (US);
Stephen Ray Stafford, Conroe, TX (US);
Anthony Louis William Collins, Houston, TX (US);
Keith Moriarty, Houston, TX (US);
Doyle Brinegar, Conroe, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H 3/04 (2006.01); B23G 9/00 (2006.01);
U.S. Cl.
CPC ...
B21H 3/04 (2013.01); B21H 3/042 (2013.01); B23G 9/009 (2013.01);
Abstract
A method of cold rolling a thread on a tubular support member of a rotary shouldered thread connection includes obtaining an original root depth of a thread root, cold rolling the thread until a minimum increased root depth tolerance is achieved. The thread may be cold rolled with a wheel tip having an elliptical profile.