Patent ID: 8496448

Claim:
A pump assembly for circulating fluids, the pump assembly having a housing including an intake and an outtake, a shaft disposed within the housing, and a rotor, the rotor having an inner peripheral wall encircling the shaft so as to define a bore, the rotor actuated by a magnet disposed within the housing, a propeller fixedly mounted to an upstream portion of the rotor and a stator operatively connected to the magnet so as to rotate the propeller, the pump assembly comprising: a passageway extending between the intake and outtake so as to provide a path for fluids, a first portion of the passageway, the first portion having a proximal end positioned at the intake for intaking a portion of the fluid, the first portion of the passageway extending axially along the shaft; and a chamber disposed within the housing and spaced apart the propeller and downstream the intake, the chamber is completely elevated with respect to the shaft, a second portion of the passageway extending radially from the first portion so as to place the first portion in fluid communication with the chamber, the passageway further including a pipe disposed external to the housing and interconnecting the chamber with the outtake, wherein a first end of the pipe is disposed on an upper portion of the chamber, wherein outgoing fluid creates a vacuum so as to draw air within the passageway into the chamber, the air travelling to the upper portion of the chamber through buoyancy and further into the outtake.