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. 16, 2003
Filed:
May. 08, 2002
Sinclair Cunningham, Kirkcaldy, GB;
Graham Perry, Scotland, GB;
Bosch Rexroth AG, Lohr am Main, DE;
Abstract
The invention relates to a hydrostatic traveling mechanism ( ) which comprises a hydraulic pump ( ), a first hydraulic engine ( ) that is linked with the hydraulic pump ( ) via a hydraulic work circuit ( ) and that drives a first drive train ( ). The traveling mechanism further comprises a second hydraulic engine ( ) that is linked with the hydraulic pump ( ) via a hydraulic work circuit ( ) and that drives a second drive train ( ). The inventive traveling mechanism is also provided with a third hydraulic engine ( ) that is coupled with the first drive train ( ) and a fourth hydraulic engine ( ) that is coupled with the second drive train ( ). The third hydraulic engine ( ) and the fourth hydraulic engine ( ) are linked with each other via a hydraulic secondary circuit ( ) that is independent of the work circuit ( ).