The Dow Chemical Company

Joe A Quick, Jr

Donald E Zahm

Howard C Alexander

Arthur A Kolka

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.

Computerized volumetric dispensing system

A marine and fresh water filtration and polishing method and apparatus which provides mechanical filtrations; improved removal of chlorinated hydrocarbons, ammonia, and nitrite; aeration; and optionally is capable of buffering water and removing organic compounds from it. Invention operates by removing water from process aquarium or tank, and passing it in a trickle filter fashion through an open-cell polymeric foam material.

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Midland, MI, United States of America

Joe A Quick, Jr