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:
Aug. 18, 2009
Filed:
Feb. 06, 2007
Kay Heemann, Kaufering, DE;
Wolfgang Ludwig, Klosterlechfeld, DE;
Roland Gienau, Wahroonga, AU;
Uwe Bohn, Kissing, DE;
Kay Heemann, Kaufering, DE;
Wolfgang Ludwig, Klosterlechfeld, DE;
Roland Gienau, Wahroonga, AU;
Uwe Bohn, Kissing, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A separate drilling head has a distal end which contacts the material to be drilled, and a proximal end which is attached to a drive mechanism. The drive mechanism drives the separate drilling head into the material. The separate drilling head is forcelockingly secured in a thin-walled hollow anchor tube, and the separate drilling head includes a hard metal cutter element, and a substantially axially-oriented, axial stop shoulder at the proximal end that passes into a circumferentially closed, outer cone.