Compact multi-chamber foam-at-a-distance pumps and dispensers

A soap or sanitizer dispenser comprising:

• a housing;
• a foam dispensing outlet;
• a reservoir;
• a motor;
• a wobble plate;
• a pump;
• wherein the pump comprises
• a liquid pump diaphragm;
• two or more air pump diaphragms;
• a valve plate;
• wherein the valve plate comprises
• a liquid inlet passage;
• a liquid outlet passage;
• two or more air inlet passages;
• an air outlet passage;
• and
• a liquid outlet valve seat;
• a manifold;
• wherein the manifold includes a liquid inlet valve seat;
• a dual flapper valve;
• wherein one of the flaps of the dual flapper valve is a liquid inlet valve and the other flap of the dual flapper valve is a liquid outlet valve.

A pump for pumping soap or sanitizer and air comprising:

• a multi-chamber diaphragm
• the multi-chamber diaphragm comprising a liquid pump chamber and two or more air pump chambers;
• a valve plate;
• the valve plate having
• a liquid inlet passage;
• a liquid outlet passage;
• a liquid outlet valve seat;
• two or more air inlet passages;
• two or more air inlet valve anchors;
• two or more air inlet valve secured to the valve plate;
• and
• a pump manifold;
• the pump manifold having a liquid inlet valve seat;
• and
• a dual flapper valve;
• wherein a first flap of the dual flapper valves is a liquid inlet valve and a second flap of the dual flapper valve is a liquid outlet valve;
• wherein a first periphery of the dual flapper valve forms a seal against the valve plate and a second periphery of the dual flapper valve forms a seal against the manifold.