A foam dispenser includes a housing, a drive motor, and a foam pump. The foam pump includes a pump housing, and a molded multi-chamber diaphragm. The molded multi-chamber diaphragm includes a liquid pump diaphragm having a liquid pump stem and two or more air pump chambers each having an air pump stem. The length of the liquid pump stem is longer than the air pump stem. The foam pump further includes one or more outlet valves, a mixing chamber, an outlet for dispensing foam wherein the outlet is in fluid communication with the foam cartridge; and an actuator for sequentially actuating the liquid pump chamber and the two or more air pump chambers, wherein there is lost motion between the actuator and the liquid pump diaphragm.

A foam dispenser includes a housing, a drive motor, and a foam pump. The foam pump includes a pump housing, and a molded multi-chamber diaphragm. The molded multi-chamber diaphragm includes a liquid pump diaphragm having a liquid pump stem and two or more air pump chambers each having an air pump stem. The length of the liquid pump stem is longer than the air pump stem. The foam pump further includes one or more outlet valves, a mixing chamber, an outlet for dispensing foam wherein the outlet is in fluid communication with the foam cartridge; and an actuator for sequentially actuating the liquid pump chamber and the two or more air pump chambers, wherein there is lost motion between the actuator and the liquid pump diaphragm.

A countertop foam dispenser has a spout made of a spout extension front housing and a spout extension rear housing. The spout includes a spout nozzle with a spout opening. A spout mounting shaft is mounted to the spout at a mounting shaft bracket. A mixer pump housing has a spout retainer latch. The mixer pump housing houses a mixer pump. The mixer pump includes a motor. A retainer notch is formed on the lower portion of the spout. The retainer notch is configured to engage the spout retainer latch. A bottle contains liquid soap. The bottle has a connection to the mixer pump housing.

A countertop foam dispenser has a spout made of a spout extension front housing and a spout extension rear housing. The spout includes a spout nozzle with a spout opening. A spout mounting shaft is mounted to the spout at a mounting shaft bracket. A mixer pump housing has a spout retainer latch. The mixer pump housing houses a mixer pump. The mixer pump includes a motor. A retainer notch is formed on the lower portion of the spout. The retainer notch is configured to engage the spout retainer latch. A bottle contains liquid soap. The bottle has a connection to the mixer pump housing.

A dispenser includes a housing, an inverted container disposed in the housing, a outlet nozzle, a pump, a first check valve, and a second check valve. The pump is disposed between the container and the outlet nozzle. The pump includes a pump inlet a pump outlet, and a pump chamber. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the pump and the outlet nozzle, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the outlet nozzle, and the second check valve has a second cracking pressure. The second cracking pressure of the second check valve is greater than the first cracking pressure of the first check valve.

A dispenser includes a housing, an inverted container disposed in the housing, a outlet nozzle, a pump, a first check valve, and a second check valve. The pump is disposed between the container and the outlet nozzle. The pump includes a pump inlet a pump outlet, and a pump chamber. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the pump and the outlet nozzle, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the outlet nozzle, and the second check valve has a second cracking pressure. The second cracking pressure of the second check valve is greater than the first cracking pressure of the first check valve.

The invention concerns a device (10) for dispensing a mixture (S) constituted by a first fluid (F1) and a second fluid (F2), suited to be applied to a container (C). The device comprises: an outlet duct (20) for the mixture (S); a reception and/or transit chamber (43); means (50, 60) for generating the mixture (S); first valve means comprising a first movable element (32); second valve means comprising a second movable element (32); third valve means comprising a third movable element (31a, 31b). Two among the first movable element (32), the second movable element (32) and the third movable element (31a, 31b) belong to a single valve element (30; 130). The invention concerns also a system for dispensing a mixture (S) constituted by a first fluid (F1) and a second fluid (F2) comprising a container (C) and a device (10) as described above.

A hand foam pump fabricated entirely from plastic components for dispensing foamable liquids, is provided. The hand foam pump includes an actuator, a closure, a housing, cylinder bores for an air piston and a liquid piston within the housing and an air piston and a liquid piston fixed to a stem, wherein the air and liquid pistons are reciprocally mounted within the cylinder bores, and check valves, among other components. An elastic, dome shaped, plastic return spring is utilized to return the actuator to its rest position after actuation. The plastic return spring is positioned over the closure and below the actuator. The all plastic hand foam pump is suitable for dispensing foamable liquids from a dispenser bottle. Used pumps do not require disassembly to be recycled.

A hand foam pump fabricated entirely from plastic components for dispensing foamable liquids, is provided. The hand foam pump includes an actuator, a closure, a housing, cylinder bores for an air piston and a liquid piston within the housing and an air piston and a liquid piston fixed to a stem, wherein the air and liquid pistons are reciprocally mounted within the cylinder bores, and check valves, among other components. An elastic, dome shaped, plastic return spring is utilized to return the actuator to its rest position after actuation. The plastic return spring is positioned over the closure and below the actuator. The all plastic hand foam pump is suitable for dispensing foamable liquids from a dispenser bottle. Used pumps do not require disassembly to be recycled.

A hand foam pump fabricated entirely from plastic components for dispensing foamable liquids, is provided. The hand foam pump includes an actuator, a closure, a housing, cylinder bores for an air piston and a liquid piston within the housing and an air piston and a liquid piston fixed to a stem, wherein the air and liquid pistons are reciprocally mounted within the cylinder bores, and check valves, among other components. An elastic, dome shaped, plastic return spring is utilized to return the actuator to its rest position after actuation. The plastic return spring is positioned over the closure and below the actuator. The all plastic hand foam pump is suitable for dispensing foamable liquids from a dispenser bottle. Used pumps do not require disassembly to be recycled.