Patent ID: 6394315
Filing Date: 2002-05-28
Classification: B05B

Abstract:
A foam dispenser for use in association with foaming liquids comprising:a resiliently deformable bottle having an interior and a throat, the resiliently deformable bottle having an at rest position and an under pressure position; a cap attached to the throat, the cap having a nozzle extending inwardly into the interior and the nozzle defining a nozzle fluid passageway; a nozzle cover attached to the cap and spaced from the nozzle defining a cap chamber therebetween; an air tube defining an air passageway extending inwardly from the nozzle cover, the air passageway being in flow communication with the cap chamber and an interior portion of air formed between the liquid and the bottle in the interior thereof when the nozzle is positioned downwardly; a pressure actuated valve for selectively opening and closing the air tube whereby the valve is closed when the bottle is in the at rest position and opens responsive to the bottle being moved from the at rest position to the under pressure position such that air flows through the air passageway from the interior portion of the bottle into the cap chamber and responsive to the bottle being moved from the under pressure position to the at rest position a vacuum is formed in the interior of the bottle drawing up air from the cap chamber and closing the valve; a cover port formed in the nozzle cover providing a fluid passageway between the interior of the bottle and the cap chamber; and a means for sealing the nozzle when the bottle is in the at rest position.