Patent ID: 6672333
Filing Date: 2004-01-06
Classification: A47G,A61J,A61M,F16K,Y10S,Y10T

Abstract:
A valve comprising:a housing having an outlet chamber defining an outlet opening, the housing further having a first retainer spaced from a second retainer defining an intermediate chamber therebetween, the first retainer having a central opening and the second retainer having a central opening, the housing further having an inlet chamber defining an inlet opening; diaphragm positioned within the intermediate chamber defining a first chamber and a second chamber, the second chamber having a vent; a plunger connected to the diaphragm and slidably supported by the central openings of the retainers, the plunger having a vacuum duct having a first end in communication with the first chamber and a second end in communication with the outlet opening, the plunger further having a passageway having a first end and a second end in communication with the outlet chamber; wherein the diaphragm is moveable from a first position wherein the first end of the passageway is obstructed and a second position wherein the first end of the passageway is in communication with the inlet chamber wherein a flowable substance can flow from the inlet chamber to the outlet chamber through the passageway and wherein the diaphragm is moveable by a partial vacuum applied through the vacuum duct.