Foam-at-a-distance dispensers having small volume pump chambers and valve arrangements for same

A foam dispenser comprising:

• a container for holding a fluid;
• a housing;
• a dispensing outlet;
• a motor;
• a pump;
• the pump having
• two or more air pump diaphragms;
• a liquid pump diaphragm;
• a liquid inlet;
• an inner valve plate;
• two or more air inlet valves secured to the inner valve plate;
• a liquid inlet valve secured to the inner valve plate;
• an air outlet valve seat formed in the inner valve plate;
• an air outlet extending upward from the air outlet valve seat;
• an outer valve support located outside of the inner valve plate;
• a liquid outlet valve secured to the outer valve support;
• a liquid outlet;
• wherein the liquid outlet valve is located further away from the liquid pump diaphragm than the liquid inlet valve;
• a wobble plate connected to the motor and connected to the two or more air pump diaphragms and the liquid pump diaphragm;
• a mixing chamber located proximate the dispensing outlet;
• a foaming cartridge located between the mixing chamber and the dispensing outlet;
• a liquid dispensing conduit extending from the liquid outlet to the mixing chamber;
• and
• an air dispensing conduit extending from the air outlet to the mixing chamber.

A foam dispenser comprising:

• a container for holding a fluid;
• a housing;
• a dispensing outlet;
• a motor;
• a pump;
• the pump having
• two or more air pump diaphragms;
• a liquid pump diaphragm;
• a liquid inlet;
• an inner valve plate;
• two or more air inlet valves secured to the inner valve plate;
• a liquid inlet valve secured to the inner valve plate;
• an outer valve support located outside of the inner valve plate;
• a liquid outlet valve secured to the outer valve support;
• an air outlet;
• a liquid outlet;
• a sealing member located between the inner valve plate and the outer valve support;
• wherein the sealing member provides a seal around a liquid inlet flow path and a liquid outlet flow path;
• a wobble plate connected to the motor and connected to the two or more air pump diaphragms and the liquid pump diaphragm;
• a mixing chamber located proximate the dispensing outlet;
• a foaming cartridge located between the mixing chamber and the dispensing outlet;
• a liquid dispensing conduit extending from the liquid outlet to the mixing chamber;
• and
• an air dispensing conduit extending from the air outlet to the mixing chamber.