Patent ID: 6638039
Filing Date: 2003-10-28
Classification: F04B

Abstract:
A pump device for removing water from pipes, said device comprising:a housing having a top wall, a bottom wall and a peripheral wall extending between said top and bottom walls, said housing having a first chamber and a second chamber, a first opening and a second opening each extending into said first chamber, a third opening extending between said first and second chambers, a fourth opening extending into said second chamber; an inlet pipe being fluidly coupled to said second opening; an outlet pipe being fluidly coupled to said fourth opening; a first valve being positioned in said second opening, said first valve being a one-way valve such that fluid may enter said first chamber from said inlet pipe through said second opening; a pump means being positioned in said first chamber for drawing water into said first chamber through said inlet pipe and expelling the water from said first chamber into said second chamber such that the water may exit said housing through said outlet pipe; and wherein said inlet pipe has an outer surface having a plurality of annular shoulders therein such that a diameter of said inlet pipe decreases from said bottom wall to a free end of said inlet pipe.