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:
May. 21, 2019
Filed:
Apr. 08, 2015
Applicant:
Mhwirth As, Kristiansand, NO;
Inventor:
Gjerulf Ottersland, Kristiansand, NO;
Assignee:
MHWIRTH AS, Kristiansand, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66D 3/06 (2006.01); E21B 19/00 (2006.01); E21B 15/00 (2006.01); E21B 19/02 (2006.01); E21B 19/086 (2006.01); E21B 19/09 (2006.01); B66D 3/08 (2006.01); E21B 19/08 (2006.01);
U.S. Cl.
CPC ...
E21B 19/008 (2013.01); B66D 3/06 (2013.01); B66D 3/08 (2013.01); E21B 15/00 (2013.01); E21B 19/02 (2013.01); E21B 19/08 (2013.01); E21B 19/086 (2013.01); E21B 19/09 (2013.01); B66D 2700/026 (2013.01);
Abstract
A self-aligning apparatus for a lifting system includes a structure which includes a first element having a first projecting free end and a second projecting free end which each receive at least one sheave at a point of attachment to the first element, and at least two first points of rotation. The at least one sheave cooperates with at least one wire. The at least two first points of rotation are arranged above the at least one sheave's point of attachment to the first element so that the apparatus self-aligns during use in an uneven loading event.