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:
Dec. 11, 1990
Filed:
Jan. 06, 1989
James D Decker, Apple Valley, MN (US);
Wendell D Burch, Elko, MN (US);
Daniel F Brady, Eagan, MN (US);
Gary W Hinzman, St. Paul, MN (US);
Edward P Kromrey, Osceola, WI (US);
Katherine M Sanville, White Bear Lake, MN (US);
Donald R Southworth, Inver Grove Heights, MN (US);
Mark S Chace, New Brighton, MN (US);
Perry M Peloquin, St. Paul, MN (US);
Ecolab Inc., St. Paul, MN (US);
Abstract
An apparatus and method for mixing and dispensing chemical solutions are disclosed. The blending unit (11) includes a manifold (38) having a plurality of chemical inlet ports (39), a water inlet port (45), and an outlet port (46). A plurality of pumps (43) and valves (41) are associated with the chemical inlet ports (39). The outlet port (46) is connected to dispensing outlets (25, 29) for dispensing the chemical solutions and water into a container 16. The apparatus (10) also includes a quality control systems, including a conductivity cell (50), a weight measurement station (26), and a volume flow measurement device. The apparatus (10) also includes an electronic control unit (70) associated with the pumps (43) and valves (41) to operate them in response to a pre-selected volume, sequential combination and concentration of chemicals.