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:
Dec. 04, 2018
Filed:
Feb. 14, 2014
Kennametal Inc., Latrobe, PA (US);
Horst Manfred Jaeger, Nuremberg, DE;
KENNAMETAL INC., Latrobe, PA (US);
Abstract
In order, in a drill tip () which is provided particularly for a modular drilling tool, to generate a ridge () with supporting chamfers () in a simple way, a non-round grinding method is provided, in which, proceeding from a starting rotary position () which corresponds to a cutting corner position, the radius is first reduced and is subsequently increased again to form the supporting chamfer (). There is therefore no need for a separate grinding step to form the supporting chamfers (). The supporting chamfers () preferably extend parallel to the longitudinal mid-axis () in the axial direction () and intersect coiled chucking grooves ().