Patents by Inventor Erich A. Steinbgroever

Erich A. Steinbgroever 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).

  • Brake for manually operable magnetic thickness gauges
    Patent number: 4152646
    Abstract: A magnetic thickness gauge having a rotatable indicator dial which is rotated to lift a permanent magnet by means of a tension spring, from the surface being measured, is provided with an automatic brake which locks the dial in place as soon as the magnet is pulled away.
    Type: Grant
    Filed: August 23, 1977
    Date of Patent: May 1, 1979
    Assignee: Elektro-Physik
    Inventors: Erich A. Steinbgroever, Hans E. Nix