Patent ID: 8230549

Claim:
An upright extractor comprising: a foot assembly including base housing for movement along a surface to be cleaned; a fluid supply system mounted to the base housing and including a fluid tank, a fluid distributor for depositing fluid onto the surface to be cleaned, and a fluid conduit between the fluid tank and the fluid distributor; and a fluid recovery system mounted to the base housing and including a suction nozzle, a recovery tank, a working air conduit between the suction nozzle and the recovery tank, and a motor/fan assembly adapted to draw liquid through the suction nozzle and deposit the liquid in the recovery tank; wherein the distributor comprises: a spray tip housing having an inlet opening connected to the fluid conduit; and an outlet opening connected to a spray nozzle; a chamber formed in the spray tip housing in communication with the inlet opening and the outlet opening; a vent opening in communication with the atmosphere and with the chamber; and a float valve mounted in the chamber and moveable from a sealing position in sealing relationship with the vent opening to seal the chamber from the atmosphere when fluid under pressure is delivered to the chamber from the fluid conduit and a vent position in spaced relationship with the vent opening to vent the chamber to the atmosphere when the fluid in the fluid conduit is unpressurized.