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:
Jul. 17, 2018
Filed:
May. 02, 2014
Maximo Tejeda, Houston, TX (US);
Maximo Tejeda, Jr., Houston, TX (US);
G. Leon Starnes, Houston, TX (US);
Terry Dobson, Jr., Houston, TX (US);
Maximo Tejeda, Houston, TX (US);
Maximo Tejeda, Jr., Houston, TX (US);
G. Leon Starnes, Houston, TX (US);
Terry Dobson, Jr., Houston, TX (US);
Tejas Tubular Products, Inc., Houston, TX (US);
Abstract
A threaded connection for use on oil field tubular. The connection has a dual tapered thread comprising a dual helical thread having a first, straight threaded portion and a second, angled portion, the threaded connection comprising a pin connection and a box connection both of which have thread-free sections. The thread-free section on the pin and the box are comprised of frustoconical surfaces and cylindrical surfaces. The thread-free section of the pin in addition to having a frustoconical surface and a cylindrical surface has an annular, radially outwardly radiused protrusion which, when the box and the pin connection are made-up is in interference engagement with the frustoconical surface in the box.