Patent ID: 6715698
Filing Date: 2004-04-06
Classification: B05B

Abstract:
A manually operable trigger sprayer comprising:a sprayer housing; a pump on the sprayer housing; a nozzle exit port on the sprayer housing; a liquid discharge passage extending through the sprayer housing, the liquid discharge passage communicating the pump with the nozzle exit port to conduct a flow of liquid in a downstream direction through the liquid discharge passage to the nozzle exit port; a valve positioned in the liquid discharge passage, the valve having a conical flange with a center axis that defines axial and radial directions, the conical flange being radially flexible whereby the conical flange flexes radially inwardly when subjected to liquid under pressure flowing through the liquid discharge passage in the downstream direction toward the nozzle exit port to open the liquid discharge passage and allow the liquid to pass the conical flange, and whereby the conical flange flexes radially outwardly when it is not subjected to liquid under pressure flowing through the liquid discharge passage to close the liquid discharge passage, the valve having a positioning plug that projects from the conical flange and engages with an interior surface of the liquid discharge passage to hold the valve centered in the liquid discharge passage; a shaft extending through a portion of the liquid discharge passage; a liquid spinner positioned in the liquid discharge passage, the liquid spinner having a spinner cavity adjacent the nozzle exit port; and the liquid spinner being at one end of the shaft with the conical flange being at an opposite end of the shaft.