Patents by Inventor Ernst Mathys

Ernst Mathys 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).

  • Device for measuring the strength of pieces of compressed molding material
    Patent number: 5142911
    Abstract: A device for measuring the strength of pieces of compressed molding material. The device includes a probe pin and a stop surface arranged on the housing. On the end of the housing opposite the probe pin is arranged a cover for replacing batteries arranged within the housing. When the probe pin is inserted into the compressed molding material, a digital display indicates the resistance to insertion measured by a crystal unit converted as molding material strengths in N/cm.sup.2 or PSI.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: September 1, 1992
    Assignee: Georg Fischer AG
    Inventor: Ernst Mathys