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.

Date of Patent:
Apr. 25, 2017

Filed:

Mar. 04, 2015
Applicant:

Nabors Drilling International Limited, Hamilton, BM;

Inventors:

Padira Reddy, Richmond, TX (US);

Ashish Gupta, Houston, TX (US);

Sean M. Bailey, Willis, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04H 12/34 (2006.01); E21B 15/00 (2006.01);
U.S. Cl.
CPC ...
E21B 15/00 (2013.01); E04H 12/344 (2013.01);
Abstract

An apparatus including a support; a first upper frame and a second upper frame each attached to the support; and removable actuators extending vertically from a base and located below the support and between the first and second upper frames, wherein the actuators are vertically extendable and retractable; wherein the actuators are adapted to engage the support and raise or lower the support upon the extension or retraction of each actuator; wherein the actuators are adapted to extend to a first height at which a first middle frame may be arranged below the first upper frame and a second middle frame may be arranged below the second upper frame; and wherein the actuators are adapted to retract to a second height at which the first middle frame may be attached to the first upper frame and the second middle frame may be attached to the second upper frame.


Find Patent Forward Citations

Loading…