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.

Date of Patent:
Apr. 26, 2016

Filed:

Jun. 08, 2015
Applicant:

Guehring Ohg, Albstadt, DE;

Inventor:

Lutfi Bozkurt, Winterlingen, DE;

Assignee:

Guehring OHG, Albstadt, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 51/00 (2006.01); B23B 51/06 (2006.01);
U.S. Cl.
CPC ...
B23B 51/009 (2013.01); B23B 51/06 (2013.01); B23B 2220/04 (2013.01); B23B 2226/315 (2013.01); B23B 2250/12 (2013.01); B23B 2251/406 (2013.01); Y10T 408/45 (2015.01); Y10T 408/455 (2015.01); Y10T 408/78 (2015.01); Y10T 408/81 (2015.01); Y10T 408/906 (2015.01); Y10T 408/9095 (2015.01);
Abstract

A rotationally driven multi-bevel step tool comprises a plurality of single- or multi-edged cutting steps arranged in a staggered manner in a cutting and feeding direction, a number of flutes in each step corresponding to the number of cutting edges in each corresponding step, at least one web, and at least one swarf window. Flutes which are adjacent in the circumferential direction in each step are delimited from one another by at least one of the at least one web. The flutes which are adjacent in the circumferential direction, of two successive cutting steps, are connected to one another by at least one of the at least one swarf window, the at least one of the at least one swarf window penetrating the web located therebetween and being open on the circumferential side.


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