An dispenser includes a housing, a container disposed in the housing for holding a liquid, a nozzle, and a pump. The pump is disposed between the container and the nozzle. The pump includes a pump inlet, a pump outlet, a pump chamber, a first check valve, and a second check valve. The pump inlet is in fluid communication with the container and the pump chamber, and the pump outlet is in fluid communication with the pump chamber and the nozzle. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the container and the pump, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the pump, and the second check valve has a second cracking pressure. The first cracking pressure of the first check valve is greater than the second cracking pressure of the second check valve.

Disclosed is an intelligent device for outputting liquid, including: a base and a cover body. The base extends into the liquid bottle, a cavity body is provided in the base for accommodating one or more of a pump, a motor and a power supply, the pump or/and the power supply is/are connected to a control assembly, a distance from a joint point of the cover body and the liquid bottle to a top surface of the cover body is less than a distance from a bottom surface of the base to the top surface of the cover body, and the cover body is connected to the base.

Disclosed is an integrated pump assembly for a liquid dispensing device and a liquid dispensing device thereof. The pump assembly for the liquid dispensing device comprises a flow path board formed with a flow path therein to receive liquid from a liquid source and dispense a gas-liquid mixture, a gas-liquid mixing pump connected with the flow path board to receive the liquid therefrom and return the gas-liquid mixture thereto, and a main control board for controlling the operation of the gas-liquid mixing pump, wherein the flow path board comprises an upper board and a lower board fitted to each other with the flow path formed therebetween. The liquid dispensing device comprises a housing, said pump assembly configured to be accommodated in said housing and a power supply to supply power to said pump assembly.

Disclosed is an integrated pump assembly for a liquid dispensing device and a liquid dispensing device thereof. The pump assembly for the liquid dispensing device comprises a flow path board formed with a flow path therein to receive liquid from a liquid source and dispense a gas-liquid mixture, a gas-liquid mixing pump connected with the flow path board to receive the liquid therefrom and return the gas-liquid mixture thereto, and a main control board for controlling the operation of the gas-liquid mixing pump, wherein the flow path board comprises an upper board and a lower board fitted to each other with the flow path formed therebetween. The liquid dispensing device comprises a housing, said pump assembly configured to be accommodated in said housing and a power supply to supply power to said pump assembly.

Exemplary foam dispensers having remote foam generators and remote foam generators are disclosed herein. An exemplary foam dispenser includes a housing, a liquid reservoir, a liquid pump chamber, an air pump chamber and a remote foam generator. The remote foam generator is at least 3 inches from the liquid pump chamber and the air pump chamber. The remote foam includes a housing, an end wall, a liquid inlet and an air inlet. The remote foam generator includes a central axis. The air inlet is located above the central axis and the liquid inlet is located below the central axis. The remote foam generator includes an inner mixing chamber, an outer mixing chamber and a deflector. The deflector has a first surface angled to deflect air flowing from the air inlet into the outer mixing chamber. The liquid inlet directs liquid flow into the outer mixing chamber. One or more fluid flow windows place the outer mixing chamber in fluid communications with the inner mixing chamber. A foaming chamber is included. One or more mix media are located in the foaming chamber. The foam generator also includes a foam outlet.

Exemplary foam dispensers having remote foam generators and remote foam generators are disclosed herein. An exemplary foam dispenser includes a housing, a liquid reservoir, a liquid pump chamber, an air pump chamber and a remote foam generator. The remote foam generator is at least 3 inches from the liquid pump chamber and the air pump chamber. The remote foam includes a housing, an end wall, a liquid inlet and an air inlet. The remote foam generator includes a central axis. The air inlet is located above the central axis and the liquid inlet is located below the central axis. The remote foam generator includes an inner mixing chamber, an outer mixing chamber and a deflector. The deflector has a first surface angled to deflect air flowing from the air inlet into the outer mixing chamber. The liquid inlet directs liquid flow into the outer mixing chamber. One or more fluid flow windows place the outer mixing chamber in fluid communications with the inner mixing chamber. A foaming chamber is included. One or more mix media are located in the foaming chamber. The foam generator also includes a foam outlet.

Various dispensing devices, such as foaming soap pumps, are disclosed. The soap pump can include a fluid storage unit and a fluid handling unit. The fluid storage unit can include a reservoir that is configured to hold a quantity of product, such as liquid soap. The fluid handling unit can include a pumping assembly and dispensing assembly. The soap pump can be configured to withdraw liquid soap from the reservoir, convert the liquid soap to foamed soap, and dispense the foamed soap from the discharge assembly.

Various dispensing devices, such as foaming soap pumps, are disclosed. The soap pump can include a fluid storage unit and a fluid handling unit. The fluid storage unit can include a reservoir that is configured to hold a quantity of product, such as liquid soap. The fluid handling unit can include a pumping assembly and dispensing assembly. The soap pump can be configured to withdraw liquid soap from the reservoir, convert the liquid soap to foamed soap, and dispense the foamed soap from the discharge assembly.

An exemplary foam-at-a-distance soap or sanitizer dispenser includes a housing, a container for holding a foamable liquid, and a pump in fluid communication with the container. The pump has a pump chamber air inlet, a pump chamber air inlet valve, a pump chamber air outlet, a pump chamber air outlet valve, a pump chamber liquid inlet, a liquid chamber liquid inlet valve, a pump chamber liquid outlet, and a pump chamber liquid outlet valve. The exemplary dispenser further includes an air conduit extending from the pump chamber air outlet to a remote mixing chamber and a liquid conduit extending from the pump chamber liquid outlet to the remote mixing chamber. The remote mixing chamber is located at a distance from the pump chamber air outlet valve and the pump chamber liquid outlet valve and that distance is greater than about 3 inches. A one-way liquid check valve is located proximate the mixing chamber, one or more mix media located downstream of the mixing chamber and an outlet nozzle located proximate the mixing chamber.

An exemplary foam-at-a-distance soap or sanitizer dispenser includes a housing, a container for holding a foamable liquid, and a pump in fluid communication with the container. The pump has a pump chamber air inlet, a pump chamber air inlet valve, a pump chamber air outlet, a pump chamber air outlet valve, a pump chamber liquid inlet, a liquid chamber liquid inlet valve, a pump chamber liquid outlet, and a pump chamber liquid outlet valve. The exemplary dispenser further includes an air conduit extending from the pump chamber air outlet to a remote mixing chamber and a liquid conduit extending from the pump chamber liquid outlet to the remote mixing chamber. The remote mixing chamber is located at a distance from the pump chamber air outlet valve and the pump chamber liquid outlet valve and that distance is greater than about 3 inches. A one-way liquid check valve is located proximate the mixing chamber, one or more mix media located downstream of the mixing chamber and an outlet nozzle located proximate the mixing chamber.