The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1992
Filed:
Feb. 07, 1989
Joe A Quick, Jr, Midland, MI (US);
Arthur A Kolka, Essexville, MI (US);
Donald E Zahm, Midland, MI (US);
Howard C Alexander, Sanford, MI (US);
The Dow Chemical Company, Midland, MI (US);
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.