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:
Apr. 09, 2013
Filed:
Nov. 25, 2009
Applicant:
Walter Laenge, Ludesch, AT;
Inventor:
Walter Laenge, Ludesch, AT;
Assignee:
Liebherr-Werk Nenzing GmbH, Nenzing, AT;
Primary Examiner:
Int. Cl.
CPC ...
B63C 11/00 (2006.01); B63C 11/42 (2006.01); E21B 41/00 (2006.01); E21B 41/04 (2006.01); B63B 21/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present disclosure relates to a device for lifting and lowering a load in water, including a hoisting gear with a first hoisting rope and a storage drum with a second hoisting rope, which preferably are arranged on a floating unit. In accordance with the present disclosure, a hoisting gear frame is fastened to the first hoisting rope, whose buoyancy in water is variably adjustable. Furthermore, the present disclosure relates to a method for lifting and lowering a load in water by using such a device.