Patent ID: 8714415
Filing Date: 2014-05-06
Classification: B05B

Abstract:
1. A sprayer, comprising: a body provided with a base that can be applied to a mouth of a container for liquid and a delivery nozzle from which the liquid is sprayed, a pumping chamber being formed in said body, which is in communication with an inside of the container through an inlet hole and a dip tube, and with the delivery nozzle through an outlet hole and a duct having a vertical portion disposed rearward of the pumping chamber and a horizontal portion disposed in the upper part of the body; a trigger lever hinged to the body of the sprayer and to a stem of a plunger tightly slidable in said pumping chamber; a one-way suction and delivery valve cooperating with said inlet hole and said outlet hole to control suction of the liquid from the container and delivery of the liquid towards the delivery nozzle following operation of said trigger lever; a chamber, closed at the top and integral with said body, disposed rearward of said pumping chamber, and extending parallel to and in contact with said vertical portion of the liquid outlet duct, said chamber having at least one hole that puts said chamber into communication with the pumping chamber through said inlet hole, and at least one window that puts said chamber into communication directly with the inside of the container, a closing means being provided to close said hole when the sprayer is in an upright position to free said hole when the sprayer is in an upside down position, allowing the liquid to flow from the inside of the container to the pumping chamber through said at least one window.