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:
Aug. 20, 2019
Filed:
Jul. 08, 2015
Mhwirth As, Kristiansand S, NO;
Per Morten Loevsland, Kristiansand, NO;
MHWIRTH AS, Kristiansand S, NO;
Abstract
A positioning and compensation system for a tubular element to be connected to a drill string includes a gripping arm assembly with a gripping device which holds the tubular element in a position for connection to the drill string, and a load supporting and compensating arrangement which supports at least a portion of a load of the tubular element. The load supporting and compensating arrangement includes a cylinder unit having a piston, a winch, a sheave which is connected to the gripping arm assembly, and a wire. The wire is arranged to run around the sheave with a first end being connected to the piston and a second end being connected to the winch. The winch and the cylinder unit are each arranged in a respective elevated position compared to a position of the sheave. The cylinder unit maintains a minimum tension in the wire.