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:
Jan. 01, 2019
Filed:
May. 06, 2016
Hunting Energy Services, Inc., Houston, TX (US);
Gregory Lynn Adkins, Lafayette, LA (US);
Hunting Energy Services, Inc., Houston, TX (US);
Abstract
A torque-less threaded connection is shown for connecting a drill tool to a drill string for use in horizontal directional drilling operations. An up-hole end portion has a female, box end opening with a non-threaded, slightly tapered first circumferential surface having a first median inner diameter; a non-threaded, slightly tapered second circumferential surface having a second inner diameter that is larger than the first diameter. A threaded tapered section extends between the first and second circumferential surfaces. The threaded tapered section has threads thereon which make up a multi-lead thread form. The downhole end portion of the coupling has mating external pin surfaces for engaging the internal surfaces of the up-hole end portion. A torque collar slides over portions of the up-hole and downhole end portions and prevents relative rotation between the downhole and up-hole portions and prevents toque from being transmitted to the threaded portions of the connection.