Title of Invention

TUBULAR CONNECTION AND A METHOD OF MANUFACTURING A BOX MEMBER OF A TOOL JOINT

Abstract A tubular connection and methods of manufacturing a box member. The tubular connection includes a box member that includes an internal thread and a pin member that includes an external thread. The external thread is adapted to threadedly engage the internal thread. A substantially helical groove is formed on an outer surface of the box member. The method of manufacturing the box member includes selecting an outer diameter for a box member that causes the tool joint to have a greater than a selected bending strength ratio. A helical groove is formed on the outer diameter of the box member such that the helical groove reduces the bending strength ratio to be about the selected bending strength ratio. An internal thread is formed on an internal surface of the box member.
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Documents:

1928-CHENP-2007 EXAMINATION REPORT REPLY RECEIVED 08-07-2010.pdf

1928-CHENP-2007 POWER OF ATTORNEY 18-02-2010.pdf

1928-CHENP-2007 AMENDED CLAIMS 08-07-2010.pdf

1928-CHENP-2007 AMENDED PAGES OF SPECIFICATION 08-07-2010.pdf

1928-CHENP-2007 FORM-3 08-07-2010.pdf


Patent Number 243517
Indian Patent Application Number 1928/CHENP/2007
PG Journal Number 44/2010
Publication Date 29-Oct-2010
Grant Date 21-Oct-2010
Date of Filing 07-May-2007
Name of Patentee HYDRIL COMPANY
Applicant Address 3300 NORTH SAM HOUSTON PARKWAY EAST,HOUSTON, TEXAS 77032, USA
Inventors:
# Inventor's Name Inventor's Address
1 SIVLEY IV, ROBERT, S., IV 4806 ECHO FALLS , KINGSWOOD ,TEXAS 77345 , USA
2 REYNOLDS ,HARRIS,A., JR., 1706 CRANWAY , HOUSTON ,TEXAS 77055,USA
PCT International Classification Number F16L 25/00
PCT International Application Number PCT/US05/35691
PCT International Filing date 2005-10-04
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10/958,976 2004-10-05 U.S.A.