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. 27, 2010
Filed:
May. 08, 2008
Applicant:
Rainer Mielke, Oberursel, DE;
Inventor:
Rainer Mielke, Oberursel, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
F16B 37/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bore serration for locking externally serrated inserts () against rotation, with the external serration () comprising several teeth (), and particularly for use with components made of hard, brittle materials, includes an arcuate serration () featuring arcuate recesses () produced by plunge or circumferential surface milling. Each of the recesses positively accommodates at least two teeth () of the outer serration () of the threaded insert (). The arcuate serration can be produced with high dimensional accuracy without damaging the workpiece and with reduced wear of the tool, and ensures a long service-life of the threaded insert.