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:
Oct. 27, 2020
Filed:
Jan. 09, 2019
Wirtgen Gmbh, Windhagen, DE;
Christian Berning, Zülpich, DE;
Tobias Stinner, Weyerbusch, DE;
Hardy Wilhelmi, Dattenberg, DE;
Cyrus Barimani, Königswinter, DE;
Wirtgen GmbH, , DE;
Abstract
An earth working machine (), for example a road milling machine (), recycler, stabilizer, or surface miner, having a propelling unit () and a machine frame () carried by the propelling unit (), comprises a working apparatus () for earth working. Provision is made that the earth working machine () comprises, on an underside () of the machine frame () facing toward the supporting substrate of the machine (), a maintenance door () that is movable between a raised operational readiness position and a lowered maintenance position and that comprises, on its inner side () that faces away from the supporting substrate (U) in the operational readiness position, at least one functional configuration () that assists a maintenance operation.