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. 21, 2022
Filed:
May. 28, 2020
Applicant:
Liebherr-components Biberach Gmbh, Biberach an der Riss, DE;
Inventors:
Norbert Hausladen, Biberach, DE;
Hubertus Rütten, Riedlingen, DE;
Assignee:
Liebherr-Components Biberach GmbH, Biberach an der Riss, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66D 1/30 (2006.01); B21H 1/06 (2006.01); B21H 3/04 (2006.01);
U.S. Cl.
CPC ...
B66D 1/30 (2013.01); B21H 1/06 (2013.01); B21H 3/04 (2013.01);
Abstract
The present invention relates to rope drums for winding and unwinding ropes, having a drum shell, to which end disks are fastened at the end faces, and to rope winches having such rope drums. The invention also relates to a method for producing such a rope drum. According to the invention, the drum shell is seamlessly rolled from an annular workpiece blank by means of a rope groove profile embossed in a non-cutting manner.