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:
Nov. 20, 2007
Filed:
Nov. 07, 2005
Applicant:
Peter Haenle, Inzigkofen, DE;
Inventor:
Peter Haenle, Inzigkofen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 51/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill for hard materials, comprising webs that are subdivided by means of cutting grooves, and at least one principal cutting edge, each of which is provided with a cutting corner and a transition to a chisel edge. At least some sections of the principal cutting edge are continuously convex in an axial direction starting from the cutting edge.