Abstract: A dispensing device includes: a first chamber and a second chamber, the first chamber being longitudinally movable in the second chamber; an outlet passage fluidly connected to the second chamber; an intermediate valve positioned between an interior part of the first chamber and an interior part of the second chamber. The valve is configured to allow the liquid product to flow from the interior space of first chamber to the interior space of the second chamber when the first chamber is moved in a first longitudinal direction and to limit flow of the liquid product from the second chamber to the first chamber when the first chamber is moved in an opposite second longitudinal direction. A blocking member is movable in concert with the first chamber and configured to seal the outlet passage when the valve limits flow from the second chamber to the first chamber.

Abstract: A dispensing device (1) includes a first chamber (4) that is longitudinally movable in a second chamber (5) and has an outer surface sealingly contacting an inner surface of the second chamber (5). An intermediate valve (3) is positioned between an interior part of the first chamber (4) and an interior part of the second chamber (5). The intermediate valve (3) includes a valve seat plate (7) having at least one opening (8) and a valve flapper plate (9) having at least one flap (10) for covering the at least one opening (8) in the valve seat plate (7). The at least one flap (10) moves to an open position allowing the liquid product to flow from the interior space of first chamber (4) to the interior space of the second chamber (5) when the first chamber (4) is moved in a first longitudinal direction and moves to a closed position limiting flow of the liquid product when the first chamber (4) is moved in an opposite second longitudinal direction.

Abstract: A staging hopper adapted for being inserted inside the neck of a container includes: a ceiling; a dividing wall projecting from the ceiling having a lower edge; a sloping inlet barrier wall having a rear edge; a floor merging with the barrier wall; and a front wall that extends upwardly from the floor such that a portion of the floor extends forwardly of the front wall. The rear edge of the inlet barrier wall and the top wall define an inlet barrier gap, and the lower edge of the dividing wall and the floor define an outlet barrier gap. The front wall and dividing wall define an outlet chamber. The inlet barrier gap divides an inlet chamber and a barrier chamber, and the outlet barrier gap divides the barrier chamber and the outlet chamber.

Abstract: A dispensing device includes: a hollow container divided into a holding chamber and a dispensing chamber by a longitudinally-extending divider; and a metering wheel attached to a lower end of the container, the metering wheel including a plurality of wells configured to receive powder stored in the holding chamber. The metering wheel is rotatable relative to the container to move the wells from a position beneath the holding chamber to a position beneath the dispensing chamber.