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:
Mar. 15, 2022
Filed:
Mar. 20, 2020
Wirtgen Gmbh, Windhagen, DE;
Sebastian Bötzius, Siegburg, DE;
Axel Mahlberg, Hennef, DE;
Stefan Scheer, Asbach / Hussen, DE;
Björn Buchholz, Cologne, DE;
Abstract
An earth working machine (), in particular a road milling machine, a stabilizer, or the like, having a milling drum () that is mounted rotatably on a machine frame () and is populated or populatable on its outer circumference with working tools (); the working tools () to come into contact, during working operation, with the ground that is to be worked to remove it; a drive unit () drives the milling drum () by means of a drive motor (); an input drive shaft () couplable to the drive motor () is attached to the milling drum (); and a ballast element, constituting a kinetic mass (), increases the kinetic energy of the milling drum (). The kinetic mass () is couplable to or decouplable from the rotatable milling drum (), or a rotational member indirectly or directly coupled to the milling drum (), via a shiftable coupling ().