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. 08, 2018
Filed:
Oct. 14, 2014
Fontana Fasteners R.d. S.r.l., Veduggio Con Colzano (MB), IT;
Zoran Bjelobradic, Calw, DE;
Sergio Cattaneo, Veduggio Con Colzano (MB), IT;
Sven Fischer, Calw, DE;
Frank Kirchherr, Althengstett, DE;
Paolo Redaelli, Veduggio Con Colzano (MB), IT;
FONTANA FASTENERS R.D. S.R.L., Veduggio Con Colzano (Monza E Brianza), IT;
Abstract
Screw elements are provided which include a shank having a thread and a head connected to the shank, the head having a tool engagement portion which comprises six corner domes arranged evenly distributed in the peripheral direction of the head and comprising respective flanks, by which the head can be brought into positive cooperation with a hexagon socket of a tool for tightening of the screw element, wherein respective recesses are arranged peripherally between the corner domes, and wherein the flanks of the corner domes are respectively provided at least partially with a radius.