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. 18, 2020
Filed:
May. 04, 2017
Applicant:
Mhwirth As, Kristiansand, NO;
Inventors:
Atle Slettene, Vennesla, NO;
Tord Aslak Aslaksen, Lillesand, NO;
Assignee:
MHWIRTH AS, Kristiansand, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 15/02 (2006.01); E21B 19/00 (2006.01); E21B 19/02 (2006.01); E21B 19/084 (2006.01); E21B 19/086 (2006.01); E21B 19/09 (2006.01);
U.S. Cl.
CPC ...
E21B 15/02 (2013.01); E21B 19/002 (2013.01); E21B 19/006 (2013.01); E21B 19/008 (2013.01); E21B 19/02 (2013.01); E21B 19/084 (2013.01); E21B 19/086 (2013.01); E21B 19/09 (2013.01);
Abstract
A hoisting system includes a hoisting cylinder assembly which is arranged vertically. The hoisting cylinder assembly includes at least one hoisting cylinder, a lower part, and an upper part, the upper part being moveable in relation to the lower part. At least one sheave is arranged in the upper part of the hoisting cylinder assembly. A winch which includes a base is fixed in relation to the lower part. A first wire is operatively connected to the winch and extends from the winch via the at least one sheave to a yoke so as to suspend the yoke from the at least one sheave.