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:
Feb. 06, 2018
Filed:
Jul. 14, 2014
Ptech Drilling Tubulars, Llc., Conroe, TX (US);
Cain Pacheco, Houston, TX (US);
PTECH Drilling Tubulars, LLC, Conroe, TX (US);
Abstract
In a double-shoulder threaded tool joint connection, the pin external threads and the box internal threads have a thread taper between 0.75 inch per foot and 1.0 inch per foot. The pin external threads and the box internal threads have equal stab flank and load flank angles, and are in a range from thirty-three to thirty-nine degrees. Both the pin external threads and the box internal threads have roots formed in a shape of a portion of a circle tangent to both thread flanks with a minimum radius of 0.063 inch. The pin external threads and the box internal threads are in the range of two to three per inch. The box counterbore has a length of 0.750 or less. The pin nose has a length in a range of 30% to 90% of the length of the box counterbore.