Patents by Inventor Herbert Weissenbacher

Herbert Weissenbacher 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).

  • Hardness tester including a force gage for measuring the force exerted so as to control the drive unit
    Patent number: 5305633
    Abstract: A hardness tester includes an indentor which is mounted to a linearly guided carrier movably supported in a frame, with a linkage mechanism being attached to the carrier for transmitting the load onto the indentor. Interposed within the linkage mechanism is a force gage which converts the force exerted thereupon into an electric variable and is operatively connected to a comparator circuit by which the electric variable generated in the force gage is compared with a preset, selectable desired value. The comparator circuit includes an output which controls a drive unit which in turn is connected to the linkage mechanism by which the load upon the indentor is exerted.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: April 26, 1994
    Assignee: EMCO Maier Gesellschaft mbH
    Inventors: Herbert Weissenbacher, Karl Brutmann