초록 ▼

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 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.

대표청구항 ▼

A dip tube for use in combination within a collapsible container and suction means for withdrawing a liquid product from the collapsible container, the improvement comprising: an elongated dip tube positioned within said collapsible container for permitting a liquid product disposed within said coll

A dip tube for use in combination within a collapsible container and suction means for withdrawing a liquid product from the collapsible container, the improvement comprising: an elongated dip tube positioned within said collapsible container for permitting a liquid product disposed within said collapsible container to be withdrawn therefrom by said suction means; said elongated dip tube including at least one substantially straight channel in the peripheral surface thereof extending along substantially the entire length of said dip tube and at least one longitudinal interior passage through the entire length of said dip tube, said at least one straight channel communicating along the entire length thereof with said at least one longitudinal interior passage; whereby said collapsible container progressively collapses around said dip tube sealing a portion of said channel while the remaining open portion of said channel permits the complete withdrawal of liquid product disposed within said collapsible container.