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:
Nov. 06, 2018
Filed:
Mar. 31, 2017
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventor:
Alejandro Camacho Cardenas, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/00 (2006.01); E04G 21/00 (2006.01); E04G 23/00 (2006.01); E04H 12/34 (2006.01); E21B 15/00 (2006.01);
U.S. Cl.
CPC ...
E04H 12/345 (2013.01); E21B 15/00 (2013.01);
Abstract
A system for raising a mast includes a primary cylinder and an actuator. The primary cylinder has a first end coupled to the mast and a second end coupled to a lifting base. The primary cylinder actuates from a retracted position to an extended position to at least partially raise the mast. The actuator actuates from a retracted position to an extended position to at least partially raise the mast, thereby moving the first end of the primary cylinder or the second end of the primary cylinder toward a pivot point between the mast and the lifting base.