Patent ID: 7819289

Claim:
A soap dispenser, comprising: a liquid pump communicating with a liquid flow line and advancing liquid upon actuation through said liquid flow line; an air pump communicating with an air flow line and advancing air upon actuation through said air flow line; a foam generator remote from said liquid pump and said air pump by a distance defined by said liquid flow line and said air flow line, said foam generator comprising: a housing having an air inlet receiving air advanced through said air flow line and a liquid soap inlet receiving liquid advanced through said liquid flow line; a mixing chamber; an annular air passage extending between said air inlet and said mixing chamber and entering said mixing chamber about the entire periphery of the mixing chamber in a direction that is angled inwardly relative to said periphery; a liquid passage extending between said liquid inlet and said mixing chamber, wherein said air and liquid passages converge at said mixing chamber; and an annular valve interposed within said air passage prior to entry into said mixing chamber.