Patent ID: 7997788

Claim:
A submersible mixing propeller for dispersing and mixing a fluid in a liquid, the propeller having an axis of rotation, comprising: (a) an input for receiving a flow of fluid; (b) first and second blades having a pressure side, suction side, tip, root section, leading face and a trailing face, (c) a chamber communicating with the input for receiving the flow of fluid from the input; (d) the trailing face comprises a first opening extending into the chamber to permit the flow of fluid in the chamber to exit the propeller; (e) the tip comprises a second opening extending into the chamber to permit the flow of fluid in the chamber to exit the propeller; (f) the suction side is angled from a plane perpendicular to the axis of rotation in a direction toward the pressure side when moving from the leading face to the trailing face; and wherein the first opening of the first blade is aligned generally in the same plane with the leading face of the second blade which follows the first blade, when the propeller is rotated.