Patents by Inventor Stephen A. Bauman

Stephen A. Bauman 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).

  • Measurement of flow rate of powder from a hopper
    Patent number: 4730499
    Abstract: In a system and a method for measuring the rate at which powdered material flows from a container wherein a first analog signal representing the weight of the container is produced, the analog signal is differentiated to obtain a second signal corresponding to the flow rate and the second signal is passed through an adaptive filter. The adaptive filter includes a first low pass filter having a first time constant for producing a third signal and a second low-pass filter to produce a fourth signal.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: March 15, 1988
    Assignee: The Perkin-Elmer Corporation
    Inventors: Edward P. Gianella, Bernard R. Katz, Stephen A. Bauman