Patent ID: 8418889

Claim:
An apparatus, comprising: an inverted foaming dispenser pump for dispensing foam, the inverted foaming dispenser pump including an air cylinder with an air piston to pump air to form the foam, a liquid cylinder extending from the air cylinder, the liquid cylinder having a liquid piston to pump liquid to form the foam, the liquid cylinder having an inlet opening at an end opposite the air cylinder for drawing the liquid into the liquid cylinder, a conduit shell fitted over the liquid cylinder to define an intake conduit, the conduit shell having a conduit shell opening located closer to the air cylinder than the inlet opening of the liquid cylinder for drawing the liquid to the inlet opening via the intake conduit, and an intake valve member received around the conduit shell opening, the intake valve member having a seal flap configured to seal against the conduit shell opening, the intake valve member being configured to reduce flow restrictions of the liquid drawn into the liquid cylinder, wherein the intake valve member is located outside of the conduit shell.