Patents by Inventor Max Blatter

Max Blatter 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).

  • Method for compensating interference voltages in the electrode circuit in magnetic-inductive flow measurement
    Patent number: 4704908
    Abstract: In magnetic-inductive flow measurement with periodically reverse-poled DC magnetic field (with or without field-free phases) the signal voltage in each half period is sampled during a measuring signal sampling interval and the signal value obtained by the sampling is stored. For compensating an interference DC voltage superimposed on the measuring signal in a compensation interval following each measuring signal sampling interval within the same half period by sampling and storing the signal voltage a compensation voltage is generated which compensates the signal voltage within the compensation interval to the value zero. The compensation voltage is stored and superimposed on the signal voltage until the next compensation interval. During a correction sampling interval following each compensation interval within the same half period the signal voltage is again sampled and the signal value thereby obtained also stored.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: November 10, 1987
    Assignee: Flowtec AG
    Inventor: Max Blatter