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:
Aug. 01, 2017
Filed:
Jul. 14, 2011
Applicants:
Michael Selb, Feldkirch, AT;
Matthias Wissling, St. Gallen, CH;
Armin Kueper, Schellenberg, LI;
Inventors:
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H 3/02 (2006.01); B21H 1/20 (2006.01); B21H 1/22 (2006.01); B21B 47/00 (2006.01); F16B 35/00 (2006.01); B21B 1/16 (2006.01); B21B 1/18 (2006.01);
U.S. Cl.
CPC ...
B21H 3/02 (2013.01); B21B 47/00 (2013.01); B21H 1/20 (2013.01); B21H 1/22 (2013.01); B21H 3/022 (2013.01); F16B 35/00 (2013.01); B21B 1/16 (2013.01); B21B 1/18 (2013.01);
Abstract
The production method according to the invention for creating a thread in an elongated semi-finished product comprises the following steps: shaping, especially lengthwise rolling, of at least two lengthwise grooves into a blank and lengthwise rolling of a thread into the areas circumferentially delimited by the grooves. The distance from the beds of the grooves to the axis of the blank is smaller than the distance from the root of the thread to the axis.