Patents by Inventor Zoran BJELOBRADIC

Zoran BJELOBRADIC has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Screw elements having a tool engagement portion
    Patent number: 9964133
    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.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: May 8, 2018
    Assignee: FONTANA FASTENERS R.D. S.R.L.
    Inventors: Zoran Bjelobradic, Sergio Cattaneo, Sven Fischer, Frank Kirchherr, Paolo Redaelli
  • SCREW ELEMENTS HAVING A TOOL ENGAGEMENT PORTION
    Publication number: 20160312816
    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.
    Type: Application
    Filed: October 14, 2014
    Publication date: October 27, 2016
    Applicant: FONTANA FASTENERS R.D. S.r.l.
    Inventors: Zoran BJELOBRADIC, Sergio CATTANEO, Sven FISCHER, Frank KIRCHHERR, Paolo REDAELLI