Patents by Inventor Hartmut Fromme

Hartmut Fromme 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).

  • Scale
    Patent number: 5157846
    Abstract: A scale, particularly for a position measuring device, includes a base member and a graduation carrier with a graduation which is fastened with an adhesive layer to the base member. In order to prevent an at least partial separation of the adhesive layer from the contact surface of the base member, the adhesive layer extends in a positively engaging manner with a projection in a dovetail-shaped groove in the contact surface of the base member, so that a secure adhesion of the adhesive layer on the contact surface of the base member is ensured.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: October 27, 1992
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Hartmut Fromme