Patent ID: 8226292

Claim:
A submersible, circulation system for a body of water such as a pond, said system including: a driving unit having a substantially tubular shell member and a base member, said tubular shell member being spaced from and extending about a substantially vertical axis and extending along said vertical axis for a first distance between upper and lower end sections, said upper and lower end sections of said tubular shell member respectively forming upper and lower openings extending about the vertical axis, said base member extending substantially across the lower opening of the tubular shell member and being supported below and spaced therefrom to create at least one inlet therebetween into the driving unit, said system further including a motor and pump supported within said tubular shell member and extending substantially along said vertical axis, said pump having at least one inlet and at least one outlet, said pump inlet being positioned vertically higher than said pump outlet and substantially adjacent the inlet into the driving unit, said pump outlet including a discharge nozzle directed upwardly and substantially along said vertical axis, said discharge nozzle being positioned in said base portion of the driving unit closer to the vertical axis than the inlet into the driving unit wherein with the driving unit of the system including the upper and lower end sections of the tubular shell member submerged below the surface of the body of water, the pump continuously draws an incoming flow of water substantially horizontally from outside the driving unit inwardly through the inlet into the driving unit with a first portion of the continuously incoming flow entering the pump inlet and the pump thereafter driving the first portion out through the discharge nozzle thereof substantially vertically upwardly within the driving unit along the vertical axis past the inlet and through the incoming flow of water wherein the upwardly directed water from the discharge nozzle flows out of the upper opening of the tubular shell member toward the surface of the body of water and induces the remaining portion of the incoming flow of water not drawn into the pump inlet to move upwardly therewith toward the surface of the body of water.