Patents by Inventor Helmut Matl

Helmut Matl 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).

  • Indicating instrument
    Patent number: 4886227
    Abstract: In an indicating instrument, a plurality of measuring elements (2,3) are fastened in axially displaceable manner on a base plate (1) and held by compression springs (4,5) against a front plate (6) of a housing (7). The measuring elements (2,3) are provided on their rear with contact pins (9,10,11) which pass through a base plate (1) of the indicating instrument and, behind it, engage, in each case, in a plug-type receiver (12,13,14) of a circuit board (15).
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: December 12, 1989
    Assignee: VDO Adolf Schindling AG
    Inventor: Helmut Matl