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:
Feb. 24, 2015
Filed:
Nov. 25, 2009
Herbert Baltes, Loshelm, DE;
Frank Bauer, Marpingen, DE;
Herbert Baltes, Loshelm, DE;
Frank Bauer, Marpingen, DE;
Hydac Technology GmbH, Sulzbach/Saar, DE;
Abstract
A hydrostatic drive system has a motor-driven hydraulic pump () connected to at least one hydraulic drive unit () by a first working line () and a second working line () forming a hydraulic circuit. The drive unit is connected to a gear set (). A first hydraulic accumulator () for accumulating pressure energy can be connected to one of the working lines (). A second hydraulic accumulator () can be connected to the other working line (). A valve device (V, V) permits the segment () of each working line (or) extending to the drive unit () to be separated to separate an accumulator part () from the part of the circuit with the hydraulic pump (). The accumulator part includes the hydraulic accumulators () and at least one drive unit.