Patents by Inventor Arnold D. Martin

Arnold D. Martin 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 and apparatus for controlling the coagulant dosage for water treatment
    Patent number: 4855061
    Abstract: Apparatus for controlling the coagulant dosage rate includes a charge sensor located adjacent a coagulant pump for measuring the net electrical charge on coagulated water before water treatment and a turbidity meter for measuring the effluent turbidity after water treatment. A programmable controller responds to the output signal of the charge sensor to continuously adjust the dosage rate to maintain a set point of charge value in the coagulated water corresponding to a desired effluent turbidity. To maintain calibration of the charge sensor, the controller is also responsive to the output signal of the turbidity meter to adjust the charge value set point as required so that the it corresponds to a preselected effluent turbidity.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: August 8, 1989
    Assignee: CPC Engineering Corporation
    Inventor: Arnold D. Martin