| 摘要 |
A foam dispenser is formed by modifying a standard reciprocating piston liquid pump having a reciprocating piston that is pressed to dispense liquid at an outlet. A holding chamber membrane surrounds the reciprocating piston and the outlet to define a holding chamber such that liquid dispensed at the outlet gathers at the bottom of the holding chamber. Pressing on the holding chamber membrane actuates the reciprocating piston liquid pump to dispense liquid into the holding chamber and also forces air and a portion of the liquid gathered in the holding chamber into an through a dispensing spout communicating with the holding chamber. The air and liquid are mixed at a foam media to create a foam product dispensed at an outlet of the dispensing spout. |
