Patents by Inventor John Michael Dickert

John Michael Dickert 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).

  • Precision volumetric measuring and mixing apparatus
    Patent number: 6269831
    Abstract: An apparatus for mixing a first liquid with at least a second liquid includes a tank having a mixing chamber to which is connected a first and a second supply line from each of a first and a second source of liquid. A gross control valve disposed in each of the first supply lines and a fine control valve disposed in each of the second supply lines. A noncontacting detector measures the total volume of liquid present in the mixing chamber. A controller, operable in response to signals output from the detector representative of the total volume within the mixing chamber as continuously measured by the detector, actuates in accordance with a predetermined sequence the gross and the fine control valves in the respective first and second supply lines from the first source and from the second source in accordance with a predetermined sequence.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: August 7, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Howard Blair, Jr., John Michael Dickert, Clarence Bernard Mahoney, Jr.