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. 25, 2011
Filed:
Mar. 13, 2007
Harald Riedinger, Zweibruecken, DE;
Ingo Nöske, Zweibruecken, DE;
Werner Rutz, Queidersbach, DE;
Terex Demag GmbH, Zweibruecken, DE;
Abstract
The invention relates to a tracked running gear, in which two running gears are arranged parallel to one another and each running gear has a longitudinal member () and a running gear chain () which runs around the longitudinal member in the longitudinal direction thereof and forms an upper and a lower strand, and at least one traction drive, composed of a motor, transmission and a drive gearwheel which meshes into the running gear chain and also a deflecting wheel which permits chain tensioning by means of a movement relative to the fixed part of the longitudinal member, characterized in that at least one additional traction drive () which acts on the upper strand is provided on the longitudinal member, wherein the running gear length is changed or remains unchanged.