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:
May. 02, 2006
Filed:
Mar. 09, 2004
Applicant:
Martin Raadkjaer Joergensen, Soenderborg, DK;
Inventor:
Martin Raadkjaer Joergensen, Soenderborg, DK;
Assignee:
Sauer-Danfoss (Nordborg) A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 11/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a driving device, particularly a lifting device for a working vehicle, with a drive in the form of a hydraulic motor, the drive having a first connection and a second connection, a pump and a control valve arrangement between the drive and the pump. It is endeavoured to provide a simple way of extending the functionality of such lifting devices. For this purpose, the control valve arrangement can be switched from a first operating state, in which the motor is driven in a single-acting manner, to a second operating state, in which the motor is driven in a double-acting manner.