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.

Date of Patent:
Feb. 17, 2026

Filed:

Aug. 07, 2023
Applicant:

Wirtgen Gmbh, Windhagen, DE;

Inventors:

Christian Berning, Züplich, DE;

Olaf Gaertner, Linz, DE;

Christopher Mittelstädt, Neustadt, DE;

Assignee:

Wirtgen GmbH, Windhagen, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E01C 23/088 (2006.01);
U.S. Cl.
CPC ...
E01C 23/088 (2013.01);
Abstract

A self-propelled earth working machine includes a machine frame, a working apparatus, at least one function apparatus, a drive system including first and second motors, a function transmission and a working transmission. The working transmission is configured to transmit torque between the drive system and the working apparatus. The working transmission connects the first motor and the second motor to the working apparatus for the transmission of torque such that the working apparatus may be driven to perform the earth working movement solely by the first motor or solely by the second motor or jointly by the first and second motors, wherein the working transmission connects the first motor to the working apparatus at a first transmission ratio and connects the second motor to the working apparatus at a second transmission ratio different from the first transmission ratio.


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