Patents by Inventor Walter J. Karch

Walter J. Karch 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).

  • Batch sensor for glass-melting furnaces
    Patent number: 4194077
    Abstract: A glass-melting furnace is provided with means for sensing the batch in the furnace. More specifically, the sensor determines the level or height of the batch in the furnace without physical contact therewith and with the aid of this value, the thickness of the batch can be determined. With the batch thickness known, the power input for the electrodes of the furnace can be changed or the supply of batch to the furnace can be altered to maintain the batch thickness at a constant value in the furnace or to maintain the glass level constant.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: March 18, 1980
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Sheldon A. Canfield, Walter J. Karch