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. 12, 1991
Filed:
May. 08, 1989
Karl-Heinz Kusters, Krefeld, DE;
Eduard Kusters Maschinenfabrik GmbH & Co KG, Krefeld, DE;
Abstract
A roll arrangement comprises a hydraulically supported bottom roller having rotating hollow cylinder and a stationary crosshead extending lengthwise through the cylinder to form a clearance space therewith. The end of the crosshead are supported by force exerting devices. The forces producing the line pressure of the roll are transferred through a hydraulic supporting device, such as hydraulic fluid contained within a longitudinal pressure chamber in the crosshead, to the inner circumference of the hollow cylinder. When a quick release action is desired to separate the bottom roller from its counterroll, the pressure in the longitudinal chamber is suddenly lowered by opening a quick release valve connected to a return tank. A corresponding reduction of the pressure in the force exerting devices to permit separation of the rollers occurs only after a sensor, such as a dynamometer, has determined that the load on the crosshead has been substantially removed.