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:
Jun. 30, 2020
Filed:
Nov. 04, 2016
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Rainer Widmann, Bodnegg, DE;
Alexander Volz, Baienfurt, DE;
Massimo Anghileri, Solothurn, CH;
Miriam Kederer, Zuchwil, CH;
Xiao Qiu, Weingarten, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28D 1/14 (2006.01); B23B 51/02 (2006.01); E21B 10/44 (2006.01);
U.S. Cl.
CPC ...
B28D 1/146 (2013.01); B23B 51/02 (2013.01); E21B 10/445 (2013.01); B23B 2226/75 (2013.01); B23B 2251/046 (2013.01); B23B 2251/245 (2013.01); B23B 2251/248 (2013.01); B23B 2251/406 (2013.01); B23B 2251/446 (2013.01);
Abstract
A drilling tool, in particular a rock drilling tool, for a portable machine tool, includes an axis of rotation, at least one spiral path, and at least one wear surface transition. The at least one spiral path is coiled about the axis of rotation along the axis of rotation and includes at least one wear surface having at least one bandwidth. There is a change in the at least one bandwidth of the at least one wear surface at a position of the at least one wear surface transition.