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:
May. 20, 2003
Filed:
Dec. 21, 2001
Applicant:
Inventors:
Michael Werner, Munich, DE;
Herbert Kaufmann, Wolfurt, AU;
Romed Staggl, Feldkirch, AU;
Johannes Dobler, Rankweil, AU;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 3/504 ;
U.S. Cl.
CPC ...
F16B 3/504 ;
Abstract
A thread forming screws including opposite flanks connecting the screw crest region with the screw root region and tapering outwardly toward the root region, with each flank being formed of outer and inner flank sections tapering toward the root sections at different angles, and with the crest region being formed of a first region section ( ) extending parallel to a central axis of the screw and a second, inclination region section ( ) inclined toward the root region ( ) in a direction opposite a setting direction (S) at an angle of from about 10° to about 45°.