Patents by Inventor Jean Erpelding

Jean Erpelding 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).

  • Method and apparatus for sampling or measuring a parameter of a metal melt
    Patent number: 4449700
    Abstract: The buoyancy change of a probe as it is lowered into a molten metal melt is detected and the lowering of the probe terminated a predetermined time after the detection of the buoyancy change to precisely position the probe at a predetermined level below the surface of the melt without the need for a contact detector which actually touches the melt.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: May 22, 1984
    Assignee: Arbed S.A.
    Inventor: Jean Erpelding