A foam dispenser includes an air pump for pumping and outputting air, a liquid pump for pumping and outputting liquid soap, a mixing chamber for receiving the liquid soap and the air, and a controller for inversely controlling the outputs of the liquid pump and the air pump. A method of controlling the quality of foam produced by a foam dispenser including a liquid soap pump and an air pump includes simultaneously inversely varying the output of each of the pump for adjusting the quality of the foam produced.

The present invention relates to the technical field of soap dispenser, particularly to a foam soap dispenser including a housing, a raw material chamber, and a liquid soap outlet, and further includes a water chamber, a drive device, and a foaming device; the liquid soap outlet is arranged on the housing; the raw material chamber, the water chamber, the drive device, and the foaming device are arranged inside the housing; a raw material chamber outlet and a water chamber outlet are connected to a foaming device inlet; a foaming device outlet is connected to the soap liquid outlet. The present invention can produce plentiful foam, and the piston assembly thereof is not easy to be stuck, and is provided with a longer service life. Moreover, the produced foam has a uniform size while the discharge speed of foam is faster and more stable than ever.

The present invention relates to the technical field of soap dispenser, particularly to a foam soap dispenser including a housing, a raw material chamber, and a liquid soap outlet, and further includes a water chamber, a drive device, and a foaming device; the liquid soap outlet is arranged on the housing; the raw material chamber, the water chamber, the drive device, and the foaming device are arranged inside the housing; a raw material chamber outlet and a water chamber outlet are connected to a foaming device inlet; a foaming device outlet is connected to the soap liquid outlet. The present invention can produce plentiful foam, and the piston assembly thereof is not easy to be stuck, and is provided with a longer service life. Moreover, the produced foam has a uniform size while the discharge speed of foam is faster and more stable than ever.

Methods, systems and apparatus for operating a liquid dispenser based on the number of revolutions of the motor causing the dispensing operation and/or based on the linear distance traveled of the piston driving the dispensing pump.

Methods, systems and apparatus for operating a liquid dispenser based on the number of revolutions of the motor causing the dispensing operation and/or based on the linear distance traveled of the piston driving the dispensing pump.

A foam dispenser includes an air pump for pumping and outputting air, a liquid pump for pumping and outputting liquid soap, a mixing chamber for receiving the liquid soap and the air, and a controller for inversely controlling the outputs of the liquid pump and the air pump. A method of controlling the quality of foam produced by a foam dispenser including a liquid soap pump and an air pump includes simultaneously inversely varying the output of each of the pump for adjusting the quality of the foam produced.

A foam dispenser includes a dispensing outlet, a pre-mixing chamber receiving liquid from a liquid source and air from an air source, a mixing chamber downstream of the pre-mixing chamber and proximate the dispenser outlet, and a first conduit coupling the pre-mixing chamber to the mixing chamber.

A foam dispenser includes a dispensing outlet, a pre-mixing chamber receiving liquid from a liquid source and air from an air source, a mixing chamber downstream of the pre-mixing chamber and proximate the dispenser outlet, and a first conduit coupling the pre-mixing chamber to the mixing chamber.

An automatic foam soap dispenser includes a liquid soap dispenser, an activation unit, and an actuation unit. The liquid soap dispenser includes an outlet, a fluid reservoir for containing liquid soap, and a pump being depressed for dispensing the liquid soap in the fluid reservoir to the outlet. The activation unit includes a sensor for detecting a presence of a user of the liquid soap dispenser, and a motor having a transmission shaft, wherein the motor is activated by the sensor for generating a rotational power to the transmission shaft. The actuation unit includes a pressing member and a linkage system arranged to transmit the rotational power from the motor to a linear movement to the pressing member so as to drive the pressing member to depress the pump.

An automatic foam soap dispenser includes a liquid soap dispenser, an activation unit, and an actuation unit. The liquid soap dispenser includes an outlet, a fluid reservoir for containing liquid soap, and a pump being depressed for dispensing the liquid soap in the fluid reservoir to the outlet. The activation unit includes a sensor for detecting a presence of a user of the liquid soap dispenser, and a motor having a transmission shaft, wherein the motor is activated by the sensor for generating a rotational power to the transmission shaft. The actuation unit includes a pressing member and a linkage system arranged to transmit the rotational power from the motor to a linear movement to the pressing member so as to drive the pressing member to depress the pump.