Dispensing – Plural sources – compartment – containers and/or spaced jacket – With common discharge
Patent
1981-11-30
1984-04-03
Reeves, Robert B.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
With common discharge
222148, 222639, 222644, 239112, 239414, B67D 560, B67D 108, B67D 508
Patent
active
044403208
ABSTRACT:
A foam dispenser for converting a plurality of foam components into an expanded foam which can be flushed with a cleaning solution after the foam is discharged is distinguished by the use of a rotary valve member corresponding to each foam component introduced into the dispenser to constitute the expanded foam. Each rotary valve member has a single passageway and is mounted for movement between positions in which (a) the passageway communicates with the tube carrying the foam component and (b) the passageway communicates with a tube carrying the cleaning solution, thus permitting cleaning of the dispenser at all points downstream of where the foam components enter the valve. The distance between where the foam component is introduced into the dispenser and the point where the foam component enters the valve is so short that no significant amounts of buildup of the foam component can occur. Further, all the valves are rotated in unison by a double-acting air cylinder between communication with the foam component carrying tubes and communication with the cleaning solution carrying tubes. Actuation of the air cylinder is controlled by a timing device, so that repeated dispensings of a predetermined volume of expanded foam are possible.
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Reeves Robert B.
Stormer Russell D.
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