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:
Apr. 15, 2014
Filed:
Dec. 16, 2009
Franz Huber, Markt Wald, DE;
Martin Pleil, Feldkirch, AT;
Carl Hoffmann, Bodolz, DE;
Andreas Vorhauer, Sulz, AT;
Simon Oppeneiger, Hoechst, AT;
Berthold Aumueller, Grafenwoehr, DE;
Georg Oberndorfer, Feldkirch, AT;
Juergen Gahn, Altstaetten, CH;
Corinna Achleitner, Bludenz, AT;
Franz Huber, Markt Wald, DE;
Martin Pleil, Feldkirch, AT;
Carl Hoffmann, Bodolz, DE;
Andreas Vorhauer, Sulz, AT;
Simon Oppeneiger, Hoechst, AT;
Berthold Aumueller, Grafenwoehr, DE;
Georg Oberndorfer, Feldkirch, AT;
Juergen Gahn, Altstaetten, CH;
Corinna Achleitner, Bludenz, AT;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A method for manufacturing a thread-forming screw having a shank and a thread formed in one piece with the shank and region-wise circumferentially arranged on the shank, is disclosed. After the formation of the thread on the shank, a plurality of recesses is subsequently stamped into the thread. Then, a plurality of compact cutting elements is welded into the recesses in the thread, where the cutting elements are made of a hard material and have a hardness greater than the hardness of the thread. Additionally, a stamping device for carrying out the method is also disclosed.