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:
Feb. 08, 2000
Filed:
Apr. 09, 1997
Applicant:
Inventor:
Rolf Spangenberg, Gauting, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408 16 ; 82-12 ; 175413 ; 408 22 ;
Abstract
A tool bit for working in a previously drilled blind bore (5) has a shank section (2) insertible into the blind bore and a chuck section (1) extending co-axially from a drilling end of the shank section. A marking member (15) facing toward the base of the blind bore is mounted on the shank section (2) so that it rotates with the shank section.