Dispensing – Automatic control
Patent
1989-02-16
1990-08-07
Huppert, Michael S.
Dispensing
Automatic control
222181, 222214, 141351, B67D 560
Patent
active
049460706
ABSTRACT:
An apparatus is disclosed which dispenses a metered quantity of a liquid. The apparatus uses a roller and base pad to form a nip which receives a dispensing leg of a container. Movement of the roller along the base pad causes liquid within the dispensing leg to be dispensed through a pressure responsive valve. The roller travels along a D-shaped path, the straight portion of the path is the nip forming portion. The apparatus operates in response to an object reflecting a beam of electromagnetic energy in the form of infrared light. A container is also disclosed which has a housing, preferably cardboard, and an envelope of flexible plastic contained therein. The envelope holds the liquid and the dispensing leg is accessed through a tear-away opening in the cardboard housing.
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patent: 4667854 (1987-05-01), McDermott
patent: 4715417 (1987-12-01), Potter et al.
patent: 4722372 (1988-02-01), Hoffman et al.
Albert Stephen B.
Thomas W. Benjamin
Huppert Michael S.
Johnson & Johnson Medical Inc.
Shirtz Joseph F.
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