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:
Sep. 30, 2008
Filed:
Dec. 02, 2004
Werner Kleine, Achim, DE;
Werner Britten, Saarbruecken, DE;
Werner Kleine, Achim, DE;
Werner Britten, Saarbruecken, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An insertion end of a tool is driven along an axis at least partially rotary or percussively, which extends along the axis within a maximum guide diameter. At least one longitudinally closed locking groove and rotary driving groove is longitudinally closed at a longitudinal locking end towards the free leading end. The rotary driving groove has a groove width with at least one tangential force contact surface. At least two rotary driving grooves have a length of at least three times that of the guide diameter are arranged on the tool-side ahead of the longitudinal locking end, and have a contact length at least 1.5 times the guide diameter configured to be one fifth of the guide diameter.