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:
Oct. 31, 2017
Filed:
Jun. 30, 2015
Applicant:
Kennametal Inc., Latrobe, PA (US);
Inventor:
Herbert Rudolf Kauper, Erlangen, DE;
Assignee:
KENNAMETAL INC., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 51/00 (2006.01); B23B 51/02 (2006.01);
U.S. Cl.
CPC ...
B23B 51/009 (2013.01); B23B 51/02 (2013.01); B23B 2251/04 (2013.01); B23B 2251/14 (2013.01); B23B 2251/18 (2013.01); B23B 2251/60 (2013.01); Y10T 408/906 (2015.01);
Abstract
The drill head () extends along a rotational axis () in the axial direction () and has a central area () on the front with first main cutting edges (), an intermediate area () connecting thereto, and an outer area () in turn connecting thereto with second main cutting edges (). The intermediate area () in this case expands in the axial direction () toward the outer area () and in particular forms an expanding conical shell. A centering effect is hereby achieved via the intermediate area ().