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:
Jun. 19, 2007
Filed:
Feb. 19, 2003
Applicants:
Peter Heinrichs, Wegberg, DE;
Albrecht Heinrichs, Ratingen, DE;
Inventors:
Peter Heinrichs, Wegberg, DE;
Albrecht Heinrichs, Ratingen, DE;
Assignee:
Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, Erkelenz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66D 1/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the drawworks for lowering and withdrawing a load, in particular a drilling or a drilling plugging device, in particular for use on floating drilling platforms, which drawworks has at least one brake arrangement for braking and holding the load, an emergency brake device is provided for producing an additional braking force.