Patent ID: 7708166

Claim:
A pump for producing and dispensing foam, comprising: an air compartment having an inlet and an outlet, a fluid compartment having a fluid inlet and a fluid outlet, the fluid inlet being in flow communication with a fluid containing reservoir, a foam generating member for generating turbulence in air and fluid passing therethrough to produce foam, the foam generating member positioned downstream from the air compartment outlet and the fluid outlet to receive fluid which has been discharged through the fluid outlet and air which has been discharged through the air compartment outlet, a discharge outlet downstream from the foam generating member open to the atmosphere for discharge of any air, fluid and foam discharged outwardly through the foam generating member, the pump comprising a first member and a second member cooperating to define the air chamber and the fluid chamber, the second member being movable with respect to the first member, whereby moving the second member in a first direction towards the first member pressurizes the air compartment thereby forcing liquid and air through the foam generating member and simultaneously drawing fluid from the reservoir through the fluid inlet into the fluid compartment, and whereby moving the second member in a second direction opposite to the first direction away from the first member pressurizes the fluid compartment thereby discharging fluid from the fluid compartment out the fluid outlet and simultaneously drawing air into the air compartment.