Patents by Inventor Heinz-Peter Rekow

Heinz-Peter Rekow 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).

  • Display device having signal lamps
    Patent number: 3952229
    Abstract: In a display device having a plurality of signal lamps, each lamp is coupled to a signal contact through a first decoupling diode and a test voltage having a voltage lower than that of the signal voltage is coupled to each lamp by means of a series resistance and second diode to generate a current acting both to pre-heat the lamp and for use in indicating lamp failure with a further diode coupled to the second diode providing an input to testing means giving an indication of a lamp failure.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: April 20, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Heinz-Peter Rekow