Some embodiments relate to a metering device, including: a metering chamber; a piston separating the metering chamber into a supply compartment and a metering compartment, the piston including a passage between the two compartments; a valve for closing the passage, allowing the passage of the product when same is in the open position; and movement mechanisms of the valve. The valve includes drive mechanisms of the piston arranged on either side of the piston in such a way that the movement of the valve in a discharge direction drives the movement of the piston in the discharge direction and the movement of the valve along the length of the cylinder body in a transfer direction, and drives the movement of the piston.

Some embodiments relate to a metering device, including: a metering chamber; a piston separating the metering chamber into a supply compartment and a metering compartment, the piston including a passage between the two compartments; a valve for closing the passage, allowing the passage of the product when same is in the open position; and movement mechanisms of the valve. The valve includes drive mechanisms of the piston arranged on either side of the piston in such a way that the movement of the valve in a discharge direction drives the movement of the piston in the discharge direction and the movement of the valve along the length of the cylinder body in a transfer direction, and drives the movement of the piston.

A valve device of a metering device for metering molten metal, in particular for a pressure casting installation, comprising a cylinder, which has an inlet opening, an outlet opening, and a metering opening, and a piston, which is movably arranged in the cylinder in the longitudinal direction of the cylinder such that the piston can be brought into a first position and a second position. The piston is designed to block a fluidic connection between the inlet opening and the outlet opening and release a fluidic connection between the inlet opening and the metering opening in the first position. The piston is designed to block a fluidic connection between the inlet opening and the metering opening and release a fluidic connection between the metering opening and the outlet opening in the second position.

A valve device of a metering device for metering molten metal, in particular for a pressure casting installation, comprising a cylinder, which has an inlet opening, an outlet opening, and a metering opening, and a piston, which is movably arranged in the cylinder in the longitudinal direction of the cylinder such that the piston can be brought into a first position and a second position. The piston is designed to block a fluidic connection between the inlet opening and the outlet opening and release a fluidic connection between the inlet opening and the metering opening in the first position. The piston is designed to block a fluidic connection between the inlet opening and the metering opening and release a fluidic connection between the metering opening and the outlet opening in the second position.

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.

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.

A thread dosing feeder for extracting creams or gelatinous products contained within a tube from the tube whereby the dosing feeder tube can be applied to the tube, the thread dosing feeder comprises a rotary gate feeder (1), the rotary gate feeder (1) has a metering chamber, the metering chamber operates in conjunction with a plunger (3), the rotary gate feeder (1) is pivot-mounted on the thread dosing feeder and the thread dosing feeder has an outlet, and the thread dosing feeder has a re-circulation valve (11, 14, 20), the rotary gate feeder (1) has a concave finger receptor and is formed in one piece, whereby the metering chamber is locked and has an intake and discharge valve (6).

A dispensing closure for dispensing a flowable product from a squeeze-type product container includes a closure body having an upper deck, an exit orifice, a flow conduit providing a flow path to the exit orifice, and a skirt configured to attach to a product container. A measuring reservoir is received in engagement with a lower surface of the upper deck. The measuring reservoir is filled with a measured dose of flowable product through flow ports when the container is inverted. A piston valve is slidably movable within the measuring reservoir between an open position and a closed position. The piston valve is movable from the open position to the closed position to dispense the measured dose of product responsive to pressure within the container induced by squeezing normally biases the piston valve to the open position.