Patents by Inventor Wulf Springhart

Wulf Springhart 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).

  • Differential pressure measuring apparatus
    Patent number: 5097712
    Abstract: The differential pressure measuring apparatus comprises a single chamber differential pressure sensor filled with a fluid and having two measuring capacitors whose capacitances vary in opposite senses in response to the differential pressure to be measured and in the same sense in response to the temperature said capacitances being transformed by means of associated capacitance measuring circuits into measurement signals which are supplied to a calculation circuit for calculating the temperature and the differential pressure. A temperature measuring means which comprises a temperature sensor mounted on the differential pressure sensor and a temperature measuring circuit connected to the temperature sensor measures directly the temperature of the single chamber differential pressure sensor.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: March 24, 1992
    Assignee: Endress u. Hauser GmbH u. Co.
    Inventors: Peter Gerst, Wulf Springhart