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. 20, 2011
Filed:
Jun. 18, 2009
Joseph William Pallini, Jr., Tomball, TX (US);
Brian N. Munk, Houston, TX (US);
Jesse B. Riha, Houston, TX (US);
Rockford D. Lyle, Pinehurst, TX (US);
Joseph William Pallini, Jr., Tomball, TX (US);
Brian N. Munk, Houston, TX (US);
Jesse B. Riha, Houston, TX (US);
Rockford D. Lyle, Pinehurst, TX (US);
Vetco Gray Inc., Houston, TX (US);
Abstract
A riser connector uses a box and upset pin connector threadform design having S-shaped load flanks that provide a variable load angles depending on the radial position along the engaged teeth. This design promotes a load path that changes with position along the axial length of the engaged thread, as well as increasing or decreasing external loads on the connector. The connector also varies radial distention of the pin from the box in a manner that is different from one thread to the next. The threadform uses a combination of thread cuts that vary in shape, pitch, and/or thread cone angle to provide load and stab flanks, as well as a load path, that vary from one axial end of the engaged thread to the other.