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:
Nov. 13, 2018
Filed:
Jun. 13, 2014
Thyssenkrupp Steel Europe Ag, Duisburg, DE;
Thyssenkrupp Industrial Solutions Ag, Essen, DE;
Natasja Linke, Kamp-Lintfort, DE;
Andreas Kern, Ratingen, DE;
Hans-Joachim Tschersich, Dorsten, DE;
Guido Leuschen, Bielefeld, DE;
THYSSENKRUPP STEEL EUROPE AG, Duisburg, DE;
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG, Essen, DE;
Abstract
A screen bar for a bar screen may comprise a steel composite sheet having at least three steel layers: a top layer, a core layer, and a bottom layer. The top, core, and bottom steel layers may be interconnected by roll cladding in a non-releasable manner. In some examples, the core steel layer may have a higher deformability than the top steel layer and the bottom steel layer. Likewise, the top steel layer and the bottom steel layer may have higher hardnesses than the core steel layer. Such screen bars have extended service life and can be manufactured more cost effectively, amongst other benefits. Methods for manufacturing such screen bars may involve a variety of steps including hot rolling and/or heat-treating.