| Title of Invention | TUBULAR CONNECTION AND A METHOD OF MANUFACTURING A BOX MEMBER OF A TOOL JOINT |
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| 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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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 | |||||||||
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| 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:
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| PCT International Classification Number | F16L 25/00 | |||||||||
| PCT International Application Number | PCT/US05/35691 | |||||||||
| PCT International Filing date | 2005-10-04 | |||||||||
PCT Conventions:
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