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:
Dec. 26, 2023
Filed:
Nov. 19, 2020
Wirtgen Gmbh, Windhagen, DE;
Christian Berning, Zülpich, DE;
Stephan Drumm, Vettelschoß, DE;
Abstract
A self-propelled earth working machine (), for example a road milling machine, recycler, or surface miner, includes: the extraction device () comprising a filter apparatus () arranged along an operational flow path from the at least one extraction location () to the discharge location (), the filter apparatus () encompassing: The filter apparatus () comprises a bypass valve () shiftable between two different operating positions, such that a filtering operating position connects the at least one extraction location () to the exhaust location () with passage through the filter element (); and a bypass operating position connects the at least one extraction location () to the exhaust location () while bypassing the filter element ().