Patents by Inventor Ralph W. Bernstein

Ralph W. Bernstein 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).

  • Patent number: 7078631
    Abstract: A spring scale, in particular for weighing loads in the ?g-mg range, comprises a load platform suspended by at least three flexural springs in a surrounding frame, and has bridge-connected strain gauges arranged for measuring strain on one side of the flexural springs. The flexural springs extend in succession along substantially the whole periphery of the load platform in a gap between the load platform and the inner edge of the frame, and an attachment spot on the load platform for every flexural spring is arranged substantially directly opposite or past an attachment spot on the inner edge of the frame for a next flexural spring in the succession of springs. Preferably, the spring scale is made in one piece, and manufactured by means of semiconductor process technology.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: July 18, 2006
    Assignee: Sintef Elektronikk OG Kybernetikk
    Inventors: Dag T. Wang, Ralph W. Bernstein, Geir Uri Jensen, Eivind Lund