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:
Oct. 01, 2013
Filed:
May. 06, 2009
Jens-ulrik Becker, Duisburg, DE;
Harald Hofmann, Dortmund, DE;
Christian Höckling, Duisburg, DE;
Andreas Kern, Ratingen, DE;
Udo Schriever, Essen, DE;
Horst Walter Tamler, Witten, DE;
Hans-joachim Tschersich, Dorsten, DE;
Jens-Ulrik Becker, Duisburg, DE;
Harald Hofmann, Dortmund, DE;
Christian Höckling, Duisburg, DE;
Andreas Kern, Ratingen, DE;
Udo Schriever, Essen, DE;
Horst Walter Tamler, Witten, DE;
Hans-Joachim Tschersich, Dorsten, DE;
ThyssenKrupp Steel Europe AG, Duisburg, DE;
Abstract
A composite material with a ballistic protective effect having a first, outer layer made of a first steel alloy and at least one second layer which is arranged under the first layer and is made of a second steel alloy. The composite material with a ballistic protective effect allows for a reduction in the weight or the wall thicknesses of the composite material in comparison to conventional composite ballistic materials, by utilizing a first steel alloy of the first layer that has the following alloy constituents in percent by weight (% by weight): 0.06%≦C ≦1.05%, 0.05%≦Si≦1.65%, 0.3%≦Mn≦2.65%, 0.015%≦Al≦1.55%; Cr≦1.2%, Ti≦0.13%, Mo≦0.7%, Nb≦0.1%, B≦0.005%, P≦0.08%, S≦0.01%, Ni≦4.0%, and V≦0.05%, the remainder being Fe and inevitable impurities. The second layer of the composite material having a higher elongation than the first layer.