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. 10, 2007
Filed:
Apr. 06, 2001
Andree Fritsch, Freudental, DE;
Hans Haidinger, Pleidelsheim, DE;
Alexander Krause, Meimsheim, DE;
Jacek Kruszynski, Stuttgart, DE;
Helmut Morlok, Loechgau, DE;
Frank Roeser, Gemmrigheim, DE;
Henry Schuett, Sachsenheim, DE;
Miltiadis Theodorou, Neckarwestheim, DE;
Andree Fritsch, Freudental, DE;
Hans Haidinger, Pleidelsheim, DE;
Alexander Krause, Meimsheim, DE;
Jacek Kruszynski, Stuttgart, DE;
Helmut Morlok, Loechgau, DE;
Frank Roeser, Gemmrigheim, DE;
Henry Schuett, Sachsenheim, DE;
Miltiadis Theodorou, Neckarwestheim, DE;
Komet Praezisionswerkzeuge Robert Breuning GmbH, Besigheim, DE;
Abstract
A solid drill bit for machine tools. has a bit body and two movable inserts located a radial distance apart in insert seats of the bit body. The inserts have a rectangular or quadratic contour, project axially over the bit body with their major cutting edges and overlap in their working area. The outer movable insert projects radially beyond the periphery of the bit body with its outer cutting edge corner and with the adjoining minor cutting edge. Starting from the cutting edge corner, the minor cutting edge is inclined in the direction of the bit body at a setting angle of less than 3.2 °. The minor cutting edge has a guiding edge that is slidingly supported against the wall of the bore over at least part of its length due to a radially outwardly oriented thrust force.