Abstract: The object of the present invention is to improve a pump-dispensing container structured to prevent leakage of liquid caused by slight vertical movements of the nozzle head, to make it easier to push out the liquid when the nozzle head is pressed down first from its highest position. If a primary check valve is configured to open the connection between the inside of the liquid chamber and the inside of the container body in a state in which the liquid chamber is filled with a liquid and the nozzle head is raised to its highest position, when the nozzle head is pressed down from its highest position to push out the liquid, resistance met during the pressing down of the nozzle head is significantly reduced because of the open connection between the inside of the liquid chamber and the inside of the container body, and the liquid can be pushed out easily by applying a small force.

Abstract: It is an object of the present invention to provide a foam dispensing container that can homogenize foam quality and can discharge foam of stable quality.

Abstract: A foam dispensing, pump-actuated container to mix air and a liquid at a predetermined ratio has a mixing chamber at a juncture of a liquid flow path and an air flow path from an air cylinder, and the foam is homogenized by a porous sheet-like member provided on the downstream of the mixing chamber, and then dispensed through the dispenser nozzle. A liquid cylinder extends downwardly relative to the bottom surface of the air cylinder, so that a slidable portion of an air piston and a slidable portion of a liquid piston, both constituting the piston assembly of the foam dispensing pump, are set at different elevations for reciprocal movement. A check valve is provided in the air piston so that outer air is introduced into an air chamber defined by the air cylinder and the air piston through a gap around the outer circumferential surface of the air piston.

Abstract: A foam dispensing pump container, for dispensing foam by mixing air pumped from an air cylinder by an air piston having suction holes in its upper wall and a foamable liquid pumped from a liquid cylinder by a liquid piston having an annular projection on its outer wall, provided with an elastic valve member including a cylindrical wall portion, an outer thin annular valve portion extending outwardly from the cylindrical wall portion, and an inner thin annular valve portion extending inwardly from the cylindrical wall portion.

Abstract: A foam dispensing, pump-actuated container to mix air and a liquid at a predetermined ratio has a mixing chamber at a juncture of a liquid flow path and an air flow path from an air cylinder, and the foam is homogenized by a porous sheet-like member provided on the downstream of the mixing chamber, and then dispensed through the dispenser nozzle. A liquid cylinder extends downwardly relative to the bottom surface of the air cylinder, so that a slidable portion of an air piston and a slidable portion of a liquid portion, both constituting the piston assembly of the foam dispensing pump, are set at different elevations for reciprocal movement. A check valve is provided in the air piston so that outer air is introduced into an air chamber defined by the air cylinder and the air piston through a gap around the outer circumferential surface of the air piston.