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:
Jul. 07, 2015
Filed:
Sep. 29, 2010
Applicant:
Dieter Kress, Aalen, DE;
Inventor:
Dieter Kress, Aalen, DE;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 51/02 (2006.01);
U.S. Cl.
CPC ...
B23B 51/02 (2013.01); Y10T 408/81 (2015.01); Y10T 408/9095 (2015.01); Y10T 408/89 (2015.01); Y10T 408/909 (2015.01); B23B 2226/27 (2013.01); B23B 2226/275 (2013.01); B23B 2251/44 (2013.01);
Abstract
A drill for producing a drilled hole in work pieces has at least one main cutting edge on an end face. At least one secondary cutting edge is provided in the region of a circumferential surface of the drill. At least one circularly ground land circumferentially adjoins the at least one secondary cutting edge. The circularly ground lands extend over a first longitudinal section in the front area of the secondary cutting edge. In a following second longitudinal section, a secondary flank circumferentially adjoins the secondary cutting edge.