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. 02, 2010
Filed:
Sep. 03, 2008
Applicants:
Gerald Felder, Feldkirch, AT;
Carmen Bier, Lauda-Koenigshofen, DE;
Inventors:
Gerald Felder, Feldkirch, AT;
Carmen Bier, Lauda-Koenigshofen, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 35/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fastening element has a core zone () formed of a relatively hard carbon steel, a skin zone () located outwardly of the core zone () and formed of a first low-carbon austenitic steel alloyed with a first alloy metal, and an intermediate zone () provided between the core zone () and the skin zone () and formed of a second low-carbon steel having a smaller hardness than the steel the core zone () is formed of.