Patent ID: 6953133
Filing Date: 2005-10-11
Classification: B05B

Abstract:
1. A pump attachment for a container comprising: a body defining a chamber and having a first end and a second end and a wall extending between the first end and the second end; a shaft extending through an opening in the first end of the chamber; a piston reciprocally mounted within the chamber, the piston including an upper surface and a lower surface and a bore extending from the upper surface to the lower surface, the piston being in sealing engagement with the interior wall of the body, the piston separating the chamber into an upper portion above the upper surface of the piston and a lower portion below the lower surface of the piston; a handle coupled to the piston through the shaft; an inlet valve at the second end of the body, the inlet valve configured to permit the flow of fluid into the chamber and restrict the flow of fluid out of the chamber; a biasing member between the piston and the first end of the elongate chamber, and a spray nozzle that comprises an actuator and a discharge outlet, the actuator being coupled to a spray valve for controlling the flow of chemical from the lower portion of the chamber through the spray nozzle to the discharge outlet, the spray nozzle including a tube that extends continuously from a point upstream of the spray valve to a point downstream of the spray valve, the point upstream of the spray valve being in fluid communication with the lower portion of the chamber and the point downstream of the spray valve being in fluid communication with the discharge outlet; wherein the piston is moveable within the chamber between an upper position and a lower position in which the lower surface of the piston is positioned at the second end of the chamber and wherein the tube extends continuously into the chamber when the piston is in the lower position.