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:
Jan. 23, 2001
Filed:
Feb. 18, 1999
Applicant:
Inventors:
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 3/1113 ;
U.S. Cl.
CPC ...
B23B 3/1113 ;
Abstract
A drill bit having a drill body and a drill shank including a substantially cylindrical guide portion (,) having at least one guide surface (,), and a locking portion (,) projecting radially beyond the guide portion and having locking surfaces (,) extending substantially perpendicular to a longitudinal axis of the drill bit, with the locking portion (,) having, perpendicular to the drill bit longitudinal axis, a non-circular cross-section; and a drill chuck for receiving the shank.