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.

Date of Patent:
Oct. 18, 2016

Filed:

Apr. 18, 2014
Applicant:

Lmt Fette Werkzeugtechnik Gmbh & Co. KG, Schwarzenbek, DE;

Inventors:

Andreas Focken, Schwarzenbek, DE;

Frank Smidt, Tramm, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H 3/04 (2006.01);
U.S. Cl.
CPC ...
B21H 3/044 (2013.01);
Abstract

The invention relates to an axial thread rolling head, comprising a head part, in which at least three thread rolls are rotatably mounted, wherein the thread rolls among themselves border an insertion section for a workpiece and wherein the thread rolls each have a profile for forming an outer thread on the workpiece, wherein the thread rolls are held non-adjustably in the radial direction in the head part, wherein the profile of the thread rolls is respectively designed asymmetrically such that the thread rolls with their asymmetrical profile form a symmetrical external thread on the workpiece. The invention also relates to a corresponding method.


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