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:
Jun. 08, 2021
Filed:
Nov. 22, 2017
Emuge-werk Richard Glimpel Gmbh & Co. KG Fabrik Für Präzisionswerkzeuge, Lauf an der Pegnitz, DE;
EMUGE-WERK RICHARD GLIMPEL GMBH & CO. KG FABRIK FÜR PraÄZISIONSWERKZEUGE, Lauf an der Pegnitz, DE;
Abstract
A thread former for the chipless production of a thread has a plurality of pressing lands, which are each arranged at predefined separation angles (T) along a shaping curve. Each separation angle (T) is smaller than or equal to a predefined maximum separation angle (T). For nominal thread former diameters (Da) between 6 mm and 20 mm, the maximum separation angle (T) is determined such that the following condition: T=sin((a×ND+b×ND+c)×2×π); is met for i) 6≤ND<10 where a=−0.0008, b=0.00705, c=0.1325, y=2; ii) 10≤ND<12 where a=1.7924/(2×π), b=0, c=0, y=−0.408; or iii) 12≤ND≤20 where a=0.751/(2×π), b=0, c=0, y=−0.104; wherein Tis the maximum separation angle and ND is the amount of the nominal thread former diameter (Da) measured in millimeters.