Patents by Inventor Josef B. Harrer

Josef B. Harrer 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: 4247816
    Abstract: This invention relates to a potentiometer with a digital display indicating the position of the potentiometer slider. In a known potentiometer of this type, a mechanical multidigit counter is mounted outside the potentiometer housing on the shaft carrying the slider. However, since the counter is mounted on the potentiometer shaft proper, the potentiometer must be inconveniently mounted in an apparatus at a point at which the counter can be read. Another disadvantage of the known potentiometer results from the fact that restrictions exist for the scale of the counter. The present invention provides a potentiometer of the above-specified type which is of simple design and is more versatile than known potentiometers. The advantage of the potentiometer according to this invention is that the display means can be mounted at a point remote from the potentiometer.
    Type: Grant
    Filed: October 5, 1978
    Date of Patent: January 27, 1981
    Assignee: Litton Systems, Inc.
    Inventors: Josef B. Harrer, Anton Jagers, Roland Petsch, Ernst Pracher