Patents by Inventor Eric Knothe

Eric Knothe 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: 4450924
    Abstract: It is known in high-resolution electronic weighing scales based on the principle of electromagnetic force compensation that the load-dependent development of heat in a coil and a precision resistor can be compensated by sending an additional alternating current through the coil and the precision resistor which is complementarily regulated in its amplitude. In order to regulate the amplitude of this alternating current, the invention proposes a simplified circuit which comprises a highly temperature-dependent resistor, the resistance value of which is set at a fixed theoretical value.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: May 29, 1984
    Assignee: Sartorius GmbH
    Inventors: Lothar Behrend, Eric Knothe, Franz-Josef Melcher, Jurgen Ober