Jerry M Janquart, Age 4510438 Red Oak Dr, Saint John, IN 46373

4032044, Jun 28, 1977

Mar 8, 1976

5/664556

Jac B. Flynn - Elgin IL
Jerry C. Janquart - Crystal Lake IL
Werner K. Priese - Barrington IL

Hills-McCanna Company - Carpentersville IL

G01F 1108
B67D 552

222135

There is disclosed a system and dispensing unit for the controlled and metered dispensing of a liquid product, or of two or more liquid products, which should be combined in the right proportions only shortly before ultimate usage. The basic system, as disclosed, employs a single pressure source for pressurization of the liquid product and the pressurized dispensing of the liquid product from the dispensing unit, per se. In addition to the basic illustrated system, there are disclosed novel dispensing units which enables the dispensing of a uniform or proportioned amount of liquid upon each operation thereof. Further, these units are constructed so as to permit the dispensing of several different liquids simultaneously from the same unit, or the selected dispensing of the individual liquid.

4124147, Nov 7, 1978

Mar 4, 1977

5/774268

Werner K. Priese - Barrington IL
Jerry C. Janquart - Crystal Lake IL
Deryl B. Stanley - Elgin IL

Hills-McCanna Company - Carpentersville IL

G01F 1108
B67D 552

222135

There is disclosed a novel dispensing unit and system for the controlled, metered dispensing of one or more liquid products. The unit which serves to provide an important part of the system is designed for use with an arrangement wherein pressurized liquid products are delivered to the unit for controlled, metered dispensing. The unit is characterized primarily by the employment of metering chambers defined partially by flexible diaphragms. In conjunction with each said chamber, there are provided an inlet and outlet passage arrangement and a valve arrangement for controlling the supply and discharge of liquid product from said metering chamber. The unit includes a selectively operable control arrangement provided for opening and closing the valving arrangement, and also alternately pressurizing and venting the metering chamber diaphram with respect to a pressurized medium. When pressurized the metering chamber diaphragm will move relative to the remainder of the metering chamber to expel a predetermined quantity of liquid product from said chamber. The liquid product thus expelled will correspondingly replace liquid product in the discharge passage of the unit and will ultimately result in dispensing of a similar quantity of product from the dispensing head or outlet ports for the unit.