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. 24, 2018
Filed:
Feb. 14, 2013
Applicant:
Mhwirth Gmbh, Erkelenz, DE;
Inventor:
Albrecht Heinrichs, Erkelenz, DE;
Assignee:
MHWIRTH GMBH, Erkelenz, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01); A61B 5/157 (2006.01); A61B 5/15 (2006.01); G01N 33/487 (2006.01); A61B 5/145 (2006.01); A61B 5/1455 (2006.01); A61B 5/1468 (2006.01); A61B 5/151 (2006.01); A61B 10/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/157 (2013.01); A61B 5/1411 (2013.01); A61B 5/1451 (2013.01); A61B 5/1455 (2013.01); A61B 5/1468 (2013.01); A61B 5/14532 (2013.01); A61B 5/150022 (2013.01); A61B 5/15151 (2013.01); A61B 5/15161 (2013.01); A61B 5/15176 (2013.01); A61B 5/150297 (2013.01); A61B 5/150358 (2013.01); A61B 5/150419 (2013.01); A61B 5/150503 (2013.01); A61B 10/007 (2013.01); A61B 10/0045 (2013.01); G01N 33/4875 (2013.01); A61B 5/15107 (2013.01); A61B 5/15115 (2013.01);
Abstract
A drawworks for a drilling device for lowering and hoisting a load such as a drill string or parts thereof includes a frame comprising a first bearing point, a second bearing point, and a third bearing point, a winding drum, and a first bearing device connected to the frame for the winding drum. The first bearing device is arranged so that a center of respective bearing forces is located at each of the first bearing point, at the second bearing point, and at the third bearing point.