Patents by Inventor Udo Hafner

Udo Hafner 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).

  • Device for measuring the mass of a flowing medium
    Patent number: 4299124
    Abstract: A temperature-dependent resistor or hot wire is extended over at least three anchoring points and to improve the measuring accuracy of the hot wire and to ensure sufficiently high temperatures over the entire active length of the hot wire during a cleaning step by burning, the hot wire is configured in the shape of loops at all anchoring points and the intersecting wire sections of the loops are conductively connected with one another. Current lead wires are preferably conductively attached to the hot wire by means of which the current is conducted to an electric control device.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: November 10, 1981
    Assignee: Robert Bosch GmbH
    Inventors: Heinrich Knapp, Rudolf Sauer, Peter Romann, Udo Hafner, Thomas Wilfert, Werner Kammerer