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:
Aug. 27, 2024

Filed:

Mar. 11, 2022
Applicant:

Black & Decker Inc., New Britain, CT (US);

Inventors:

Juri Schatz, Limburg, DE;

Alexander Stangl, Furstenzell, DE;

Florian Probst, Aidenbach, DE;

Christoph Gastinger, Hutthurm, DE;

Assignee:

BLACK & DECKER INC., New Britain, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/42 (2006.01); B23B 51/02 (2006.01); B28D 1/14 (2006.01); E21B 10/43 (2006.01); E21B 10/54 (2006.01);
U.S. Cl.
CPC ...
B23B 51/02 (2013.01); B28D 1/146 (2013.01); E21B 10/42 (2013.01); E21B 10/43 (2013.01); E21B 10/54 (2013.01); B23B 2226/75 (2013.01); B23B 2251/14 (2013.01); B23B 2251/204 (2013.01);
Abstract

A one-piece cutting head for a drill bit includes a main cutting edge that extends between radial extremities of the cutting head. The main cutting edge is disposed between main rake surfaces and main relief surfaces. Each main rake surface includes one or more rake facets, and each main relief surface includes one or more relief facets. Adjacent rake facets and relief facets define a primary transverse edge therebetween that extends away from the main cutting edge. The cutting head further includes a plurality of side cutters that are transverse to the main cutting edge and that propagate from the primary transverse edge to a radial extremity of the cutting head. Each side cutter includes a side cutting edge between a side cutting rake facet and a side cutting relief facet.


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