Patent ID: 7789275

Claim:
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, wherein the second end comprises an annular lip defining an opening in the second end, wherein the wall and the annular lip are formed of a single piece of material; a hollow shaft extending through an opening in the first end of the chamber and defining a piston in sealing engagement with an interior portion of the wall of the body, the piston separating the chamber into an upper portion above an upper surface of the piston and a lower portion below a lower surface of the piston; a handle coupled to the shaft; a check valve mounted in the opening and 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 body; tubing fitted in the hollow shaft and extending into an inner bore of the piston; and a spray nozzle in fluid communication with the lower portion of the chamber.