Abstract: A dispensing apparatus that provides for selectively controlling discharge quantity. The dispensing apparatus may include a pump and a housing. The pump includes a first portion and a second portion linearly movable relative to the first portion, and the housing is for securing the portion of the pump. A distance of movement of the second portion toward the first portion is the pump stroke, and the pump stroke may be selectively varied. A dispensing module may include a pump, a rotatably mounted stroke selector including a plurality of arms that allow movement of a stop member associated with a moveable portion of the pump for predetermined and different distances depending on which arm of the stroke selector, if any, engages the stop member, with the distance of allowed movement of the stop member being variable depending on the angular position of the stroke selector.

Abstract: The present invention provides a foam dispensing assembly comprising a liquid piston pump, comprising a liquid cylinder and a liquid piston delimiting a liquid pump chamber, and a liquid inlet and outlet, an air piston pump comprising an air cylinder and an air piston delimiting an air pump chamber, and an air inlet and outlet, a common actuation button for actuation of said liquid pump and said air pump, a dispensing channel for mixing and dispensing liquid and air pumped by said liquid and air pump, respectively, and a securing collar for attachment of said dispensing assembly to a container. The invention is characterized in that said air cylinder is formed by a cylindrical skirt of said actuation button, and said air piston is at least partially formed by a cylindrical extension of said securing collar and in that said air chamber at least partially surrounds said liquid chamber.

Abstract: The present invention relates to a dispensing device comprising: —a container (2) for holding a liquid having an opening, and—a dispensing assembly (4) mountable on or in said opening, said dispensing assembly comprising: —a pump (5) having a pump chamber (7) and a pump inlet (6) comprising an inlet valve (9) and a pump outlet (8) comprising an outlet valve (10), and—a liquid supply channel (16), one end of said channel (16) being in fluid communication with said inlet (6), the other end being arranged in a bottom portion of said container (2), wherein a one-way valve (20) is arranged in said channel (16), and wherein an air inlet opening (17) is provided between said inlet valve (9) and said one-way valve.

Abstract: A dispensing apparatus that provides for selectively controlling discharge quantity. The dispensing apparatus may include a pump and a housing. The pump includes a first portion and a second portion linearly movable relative to the first portion, and the housing is for securing the portion of the pump. A distance of movement of the second portion toward the first portion is the pump stroke, and the pump stroke may be selectively varied. A dispensing module may include a pump, a rotatably mounted stroke selector including a plurality of arms that allow movement of a stop member associated with a moveable portion of the pump for predetermined and different distances depending on which arm of the stroke selector, if any, engages the stop member, with the distance of allowed movement of the stop member being variable depending on the angular position of the stroke selector.

Abstract: The present invention provides a foam dispensing assembly comprising a liquid piston pump, comprising a liquid cylinder and a liquid piston delimiting a liquid pump chamber, and a liquid inlet and outlet, an air piston pump comprising an air cylinder and an air piston delimiting an air pump chamber, and an air inlet and outlet, a common actuation button for actuation of said liquid pump and said air pump, a dispensing channel for mixing and dispensing liquid and air pumped by said liquid and air pump, respectively, and a securing collar for attachment of said dispensing assembly to a container. The invention is characterized in that said air cylinder is formed by a cylindrical skirt of said actuation button, and said air piston is at least partially formed by a cylindrical extension of said securing collar and in that said air chamber at least partially surrounds said liquid chamber.

Abstract: The present invention relates to a dispensing device comprising:—a container (2) for holding a liquid having an opening, and—a dispensing assembly (4) mountable on or in said opening, said dispensing assembly comprising:—a pump (5) having a pump chamber (7) and a pump inlet (6) comprising an inlet valve (9) and a pump outlet (8) comprising an outlet valve (10), and—a liquid supply channel (16), one end of said channel (16) being in fluid communication with said inlet (6), the other end being arranged in a bottom portion of said container (2), wherein a one-way valve (20) is arranged in said channel (16), and wherein an air inlet opening (17) is provided between said inlet valve (9) and said one-way valve.