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:
Jan. 22, 2013
Filed:
Aug. 07, 2008
Applicants:
Martin Raadkjaer Joergensen, Soenderborg, DK;
Rudi Thomsen, Augustenborg, DK;
Inventors:
Martin Raadkjaer Joergensen, Soenderborg, DK;
Rudi Thomsen, Augustenborg, DK;
Assignee:
Sauer-Danfoss Aps, Nordborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a method for controlling a raising drive, the raising process occurring by means of pressure activation of at least one lift cylinder and the lowering process occurring by means of relieving, and a control of the lowering speed occurring by means of a variable flow resistance. In order to achieve a load-independent lowering speed, the flow resistance is determined in dependence of at least one load signal.