Dispensing device for dispensing liquid substance from a pouch

A dispensing device for dispensing metered amounts of liquid substance from a pouch made from a pair of superposed flexible sheets sealed together along the contour thereof so as to device between the sheets a chamber for containing the liquid substance and a narrow liquid discharge passage communicating with said chamber at a junction position, said device comprising means for positioning the pouch containing the liquid substance so that the discharge passage is downwardly oriented, liquid discharge means for applying a pressure to the liquid substance present in a part of the chamber adjoining the discharge passage so as to discharge an amount of liquid through said passage, and means for bending the opposite sheet parts, which define the discharge passage there between, transversely into an angular configuration, when the desired amount of liquid has been discharged.

A dispensing device for dispensing metered amounts of liquid substance from a pouch made from a pair of superposed flexible sheets sealed together along the contour thereof so as to define between the sheets a main chamber and a smaller metering chamber for containing the liquid substance, said chambers being interconnected by an interconnecting passage, and a narrow liquid discharge passage communicating with the metering chamber at a junction position and being self-sealing at that position, said device comprising means for positioning the pouch continuing the liquid substance so that the discharge passage is downwardly oriented, and liquid discharge means for applying a pressure to the liquid substance present in a part of the chamber adjoining the discharge passage so as to discharge an amount of liquid through said passage, the pouch positioning means comprising suspension means for engaging with and securing portions of the pouch at opposite sides of the interconnecting passage so that the lower part of the pouch may depend freely therefrom, the mutual spacing of the suspension means being so small that closing of the interconnecting passage is counteracted.

A dispensing device for dispensing metered amounts of liquid substance from a pouch made from a pair of superposed flexible sheets sealed together along the contour thereof so as to define between the sheets a chamber for containing a liquid substance, and a narrow liquid discharge passage communicating with said chamber at a junction position, said device comprising means for positioning the pouch continuing the liquid substance so that the discharge passage is downwardly oriented, liquid discharge means for applying a pressure to the liquid substance present in a part of the chamber adjoining the discharge passage so as to discharge an amount of liquid through said passage, and means for applying an inwardly directed pressure to and/or for transversely moving the upper part of the pouch when a discharge operation has substantially been terminated.