Patents by Inventor Arthur A. Kolka

Arthur A. Kolka 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: 5109347
    Abstract: A computer controlled device for accurately mixing two or more fluid materials into a continual stream over an extremely wide range of relative quantities and fluid characteristics. The device can additionally sequentially dispense different predetermined mixtures of said fluid materials to two or more destinations. Mixing may be automatically accommodated in two or more sequential dilution steps. Provision exists for exact temperature control of the fluid materials and the discharge stream. Self monitoring and operation documentation are included. The device is designed to feed ingredients into continuous-flow processes which include testing of aquatic organisms for toxicological response to a variety of carefully controlled concentrations and combinations of chemical toxicants.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: April 28, 1992
    Assignee: The Dow Chemical Company
    Inventors: Joe A. Quick, Jr., Arthur A. Kolka, Donald E. Zahm, Howard C. Alexander