Patents by Inventor Bertold Sturmer

Bertold Sturmer 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).

  • Patent number: 4902862
    Abstract: Push button device having a parallel guide member between a button head and guide. A catch device holds the parallel guide member in a lock-in position so that the button head supporting the parallel guide member can be fitted easily to the guide. In the lock-in position, stop members of the parallel guide member are located in front of engraving slots. By pressing the button head, the parallel guide member is moved from the log-in position into the operating position. The stop members move into the engaging slots.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: February 20, 1990
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf GmbH & Co.
    Inventors: Jurgen Oelsch, Bertold Sturmer, Nicola Digiovinazzo, Gerhard Hochgesang
  • Patent number: 4580022
    Abstract: An improved key for typing keyboards or other terminal keyboards, which is ubstantially larger than the other keys and large compared with the contact to be actuated. In order to avoid tilting during out-of-center pressing, two shears are provided as a guiding means between the mobile and the immobile key parts. The shears are comprised of two frame parts pivoted about axes which are held aligned flush with each other. The shear arms provide four support points at their top free ends which enclose a rectangular surface which is practically congruent with the touch surface.
    Type: Grant
    Filed: August 16, 1984
    Date of Patent: April 1, 1986
    Assignee: Preh Elektrofeinmechanische Werke, Jakob Preh, Nachf. GmbH & Company
    Inventors: Jurgen Oelsch, Bertold Sturmer