Patents by Inventor Steven J. Burkhart

Steven J. Burkhart 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).

  • Sheet metal ground conductor clamp
    Patent number: 8191880
    Abstract: A ground conductor clamp has a sheet metal clamp body with overlapped portions. The clamp body may be stamped from sheet metal. The overlapped portions have aligned circular holes in them for receiving a threaded insert nut inserted into them. The insert nut is spin riveted to attach it to the overlapped portions of the clamp body. A flange of the insert nut has a flat face that engages the clamp body to prevent rotation of the insert nut. The overlapped portion includes an inner bent tab that strengthens the sheet metal clamp body. The clamp also includes a threaded fastener, such as a bolt, that is threaded into the insert nut to engage a conductive lead and a ground conductor, such as a ground rod or ground electrode.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: June 5, 2012
    Assignee: ERICO Internaional Corporation
    Inventors: Michael H.-S. Oh, Michael J. Gassman, Thomas R. Bockstoce, Steven J. Burkhart
  • SHEET METAL GROUND CONDUCTOR CLAMP
    Publication number: 20080303198
    Abstract: A ground conductor clamp has a sheet metal clamp body with overlapped portions. The clamp body may be stamped from sheet metal. The overlapped portions have aligned circular holes in them for receiving a threaded insert nut inserted into them. The insert nut is spin riveted to attach it to the overlapped portions of the clamp body. A flange of the insert nut has a flat face that engages the clamp body to prevent rotation of the insert nut. The overlapped portion includes an inner bent tab that strengthens the sheet metal clamp body. The clamp also includes a threaded fastener, such as a bolt, that is threaded into the insert nut to engage a conductive lead and a ground conductor, such as a ground rod or ground electrode.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 11, 2008
    Inventors: Michael H.-S. Oh, Michael J. Gassman, Thomas R. Bockstoce, Steven J. Burkhart