Patents by Inventor Rainer Isenberg

Rainer Isenberg 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).

  • Thread-forming screw
    Patent number: 6910841
    Abstract: A thread-forming screw includes a head and a shank, the shank having a thread and a thread-forming zone at the end opposite to the head, the thread-forming zone also having a thread portion. The shank at the end opposite to the head has a spherical portion with a maximum diameter in a plane perpendicular to the axis of the shank which corresponds approximately to the mean diameter of the thread of the shank.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: June 28, 2005
    Assignee: ITW Automotive Products GmbH & Co. KG
    Inventor: Rainer Isenberg
  • Thread-forming screw
    Publication number: 20020146300
    Abstract: Thread-forming screw comprising a head and a shank, the shank having a thread and a thread-forming zone at the end opposite to the head, the thread-forming zone also having a thread portion, characterized in that the shank at the end opposite to the head has a spherical portion with a maximum diameter in a plane perpendicular to the axis of the shank which corresponds approximately to the mean diameter of the thread of the shank.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 10, 2002
    Inventor: Rainer Isenberg
  • Process for coating a workpiece of steel with an anti-corrosive agent
    Patent number: 5575865
    Abstract: A process for coating a workpiece of steel with an anti-corrosive agent, comprising the steps of providing the surface of the workpiece with a chemo-mechanical layer, and chromatizing the chemo-mechanical layer, and characterized by the steps of providing the chromated layer with a further layer containing metallic components and organic binding agents, and curing the further layer by a heat treatment.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: November 19, 1996
    Assignees: ITW Befestigungssysteme GmbH, Eibach Oberflachentechnik GmbH, Rudolf Reinecke
    Inventors: Rainer Isenberg, Wolfgang Hoffmann, Rudolf Reinecke, Hans W. Herr