Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1981-04-23
1984-05-01
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
13761405, 2511496, 251DIG3, F16L 3728
Patent
active
044455399
ABSTRACT:
The present invention is directed to a dip tube and valve with a quick-disconnect coupling for use in combination with a collapsible bag to dispense a liquid product therefrom. The dip tube is extruded or otherwise formed from plastic or other suitable materials and includes at least one channel in the peripheral surface thereof extending along the entire length of the dip tube. As a vacuum or suction is applied to the dip tube by a pump, initially all of the air within the collapsible bag is extracted therefrom. Subsequently, the liquid product is dispensed out of the collapsible bag and the bag collapses around a portion of the dip tube which is no longer surrounded by the liquid product. Progressively, as the liquid product is removed, the bag will continue to collapse around the dip tube, and the liquid product will continue to flow through the longitudinal channel of the tube until the contents of the collapsible bag are exhausted. The collapsible bag has a fitment or spout to which a valve with a quick-disconnect coupling is connected. The dip tube may be mounted in either the bag fitment or the valve. The quick-disconnect coupling of the valve is adapted to receive a mating coupling from the hose socket of a dispensing hose. When the respective couplings are engaged the valve is biased in an open position. The valve is normally biased to a closed position when the couplings are not engaged.
REFERENCES:
patent: 2730380 (1956-01-01), Espy et al.
patent: 3063461 (1962-11-01), Rudolph
patent: 3174508 (1965-03-01), Zahuranec
patent: 3334659 (1967-08-01), Magorien
patent: 3902516 (1975-09-01), Rudolph
patent: 4150696 (1979-04-01), Meier et al.
patent: 4286636 (1981-09-01), Credle
Chambers A. Michael
The Coca-Cola Company
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