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:
Mar. 24, 1998
Filed:
Nov. 01, 1996
Applicant:
Inventors:
Tobias Buhofer, Zurich, CH;
Gunter Rohrmoser, Meiningen, AT;
Assignee:
Hilti Aktiengesellschaft, Furstentum, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ; B21G / ;
U.S. Cl.
CPC ...
411441 ; 411440 ; 411490 ; 470 34 ;
Abstract
A fastening element such as a bolt, nail and the like to be driven into a receiving material, is formed of a high corrosion resistant steel. The fastening element has an axially extending leading region (1) to be driven into the receiving material and trailing region (2) with the two regions forming a single monolithic member. The diameter of the trailing region (2) is greater than that of the leading region (1) and has a hardness in the range of 35-43 Rockwell C hardness while the leading region has a hardness in the range of 46-55 Rockwell C hardness.