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:
Sep. 03, 2002
Filed:
Feb. 29, 2000
Applicant:
Inventors:
Assignee:
Voest-Alpine Industrieanlagenbau GmbH, Linz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 1/316 ;
U.S. Cl.
CPC ...
F15B 1/316 ;
Abstract
There is described a method of controlling a long-stroke, hydraulic operating cylinder ( ), in particular a screw-down cylinder for an edging stand, where the piston ( ), to which a load can be applied at both ends, and which can be locked hydraulically along its stroke (s) in various working positions, is abruptly loaded with an external force after it has been locked. To create advantageous method conditions, it is proposed that the piston ( ) be locked under a hydraulic pressure chosen in dependence on the respective working position, which hydraulic pressure decreases along the stroke (s) against the direction of action of the external force.