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:
Oct. 08, 2019
Filed:
Oct. 23, 2017
Nabors Drilling Technologies Usa, Inc., Houston, TX (US);
Christopher Magnuson, Houston, TX (US);
Steven K. Deel, Cypress, TX (US);
Predrag Radovanovic, Belgrade, RS;
Djuric Miodrag, Belgrade, RS;
Nabors Drilling Technologies USA, Inc., Houston, TX (US);
Abstract
The systems, devices, and methods described herein relate to a modular gripperhead system for a drilling rig. The system includes a gripper having a first gripper arm and a second opposing gripper arm, each gripper arm having an inwardly facing gripping surface that forms at least a portion of a chamber sized to receive a portion of a cylindrical tubular, wherein the portion of the chamber has a longitudinal axis. The system also includes a grabber having a first grabber arm and a second grabber arm. Each grabber arm may be displaceable between a retracted position and an extended position in a direction along a first axis that is transverse to the longitudinal axis. The first and second grabber arms may be pivotable about a first and second pivot point between an open position sized to permit a portion of a cylindrical tubular to enter between the first and the second grabber arms and a closed position sized to secure a portion of a cylindrical tubular between the first and the second grabber arms.