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. 22, 2022
Filed:
Dec. 11, 2018
Applicant:
Hilti Aktiengesellschaft, Schaan, LI;
Inventors:
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 51/04 (2006.01); B28D 1/04 (2006.01);
U.S. Cl.
CPC ...
B28D 1/041 (2013.01); B23B 51/0466 (2013.01); B23B 2251/50 (2013.01); B23B 2265/32 (2013.01);
Abstract
A cutting section () which is connectable to a drill shaft section via a releasable connecting device. The cutting section includes a first open tubular element () which is in the form of a first hollow cylinder having a first waved, trapezoidal or zigzag-shaped cross-sectional area, a second closed tubular element () which is in the form of a second hollow cylinder having a circular ring-shaped cross-sectional area, and one or more drill segments () which are connected to the first open tubular element () and to the second closed tubular element ().