Dispensing – Plural sources – compartment – containers and/or spaced jacket – With discharge assistant for each source
Patent
1977-03-04
1978-11-07
Scherbel, David A.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
With discharge assistant for each source
222263, 222288, 222380, 251 611, G01F 1108, B67D 552
Patent
active
041241479
ABSTRACT:
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.
REFERENCES:
patent: 2529028 (1950-11-01), Landon
patent: 3083943 (1963-04-01), Stewart, Jr. et al.
patent: 3180527 (1965-04-01), Wasilewski et al.
patent: 3203595 (1965-08-01), Berkowitz
patent: 3727804 (1973-04-01), Smith et al.
patent: 4032044 (1977-06-01), Flynn et al.
Janquart Jerry C.
Priese Werner K.
Stanley Deryl B.
Hills-McCanna Company
Scherbel David A.
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