Abstract: A centrifugal turbine having a single impeller having two separate halves which face away from each other, at least one impeller half having an outlet tube which rotates with the impeller, the impeller halves held together by pins with blades floating on the pins, the blades not being connected to the impeller halves; a housing having three components, one housing component containing the two impeller halves comprising an inlet, and two outer housing components having an outlet.

Abstract: A system and method for sensing level of a fluid associated with a submersible pump having an impeller driven by an associated motor include a fluid level sensor having a probe with a plurality of discrete resistive elements each having an associated contact pair substantially evenly spaced along a length of the probe and an associated switch powered by an induced voltage or current generated by power provided to the submersible pump motor and activated by the fluid conducting across the contact pair to shunt the associated discrete resistive element.

Abstract: A centrifugal turbine having a single impeller having two separate halves which face away from each other, at least one impeller half having an outlet tube which rotates with the impeller, the impeller halves held together by pins with blades floating on the pins, the blades not being connected to the impeller halves; a housing having three components, one housing component containing the two impeller halves comprising an inlet, and two outer housing components having an outlet.

Abstract: A two piece impeller centrifugal pump comprising two halves of an impeller facing each other within a volute, a housing having two sides, one side adjacent each impeller half and having an inlet and an outlet, a motor mounted on the housing, the motor driving both impeller halves, for pumping fluid or material from the inlet to the outlet, the housing and the impeller halves having a sealing surface where they contact each other, the centrifugal force of the impeller forcing the fluid or material outward, pushing the two impeller halves outward against the housing.

Abstract: A two piece impeller centrifugal pump comprising two halves of an impeller facing each other within a volute, a housing having two sides, one side adjacent each impeller half and having an inlet and an outlet, a motor mounted on the housing, the motor driving both impeller halves, for pumping fluid or material from the inlet to the outlet, the housing and the impeller halves having a sealing surface where they contact each other, the centrifugal force of the impeller forcing the fluid or material outward, pushing the two impeller halves outward against the housing.

Abstract: A system and method for sensing level of a fluid associated with a submersible pump having an impeller driven by an associated motor include a fluid level sensor having a probe with a plurality of discrete resistive elements each having an associated contact pair substantially evenly spaced along a length of the probe and an associated switch powered by an induced voltage or current generated by power provided to the submersible pump motor and activated by the fluid conducting across the contact pair to shunt the associated discrete resistive element.