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US 2012/0257995 A1Published application
Submersible pump and motor rotation indication circuit
OwnerBryan R. Trueinventor
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OwnerBryan R. Trueinventor
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This patent addresses a need to be able to tell in which direction of rotation an electric motor is turning when connected to a pump, and in particular, a submersible pump where the direction of the motor shaft is not installed where visual observance of the direction of rotation is possible. This patent covers the modification of any existing motors or pumps to include any device, circuit, or change to sense, measure, or pick up the direction of rotation of an electric pump or motor for the purpose of knowing the direction the motor or pump is turning when operating or bumped for observation. It is appreciated that there may be ways to sense, transmit, store, or measure the direction of rotation of a pump or motor other than in the embodiments described above, however this patent application is not limited to the embodiments above but cover and include the spirit and intent of the invention as defined in the claims above.
A submersible pump which includes an electric motor (Figure One) for use partially or totally submerged in or under a fluid, connected to a pump comprised of a pump housing, or volute, and an impeller which incorporate a pump inlet to the pump housing and impeller and a pump outlet for the purpose of discharging the fluid in which the pump and motor are operating where the direction of the rotation of the pump must be specific as recommended by the pump manufacturer.
The application of this patent applies to a manufacturer who either produces just the pump, or just a submersible motor, or both the pump and the submersible motor.
A submersible motor (Figure One) driving a pump which includes a device to sense the rotation of the motor shaft (Figure One D1 and D3) driving the pump, whether the motor shaft (Figure One D2) is one piece with the pump or of a separate piece driving a pump and which includes a rotating sensor (Figure One D3) on the motor shaft (Figure One D2) and a stationary sensor (Figure One D1) located near the motor shaft for the purpose of taking an external power supply, or of creating its own power supply, and taking a signal from an external source or creating its own signal and transmitting the signal to outside the submersible pump/motor for the purpose of using the signal to sense, use, or indicate the direction of rotation of the submersible motor/pump shaft. The sensing of the direction of rotation may also be accomplished by a stationary sensor, powered or non powered, which senses the direction of rotation of the motor and pump shaft by a signal from the motor or pump shaft itself, whether by the metallurgy involved, an electrical or magnetic field created, or by a mechanical tripping, or mechanical indication of the direction of rotation of the pump and motor shaft from an insert into the motor shaft or attached to the rotating motor shaft.
A submersible motor/pump which includes a sensor (Figure One D1, D3) to indicate the direction of rotation of the motor/pump shaft so that the performance of the pump will be as designed by the pump parts manufacturer and which sensor circuit will be used so that the pump will only be operated in one direction to prevent damage to the pump components if the direction of rotation is not that as designed by the pump component manufacturer.
A submersible motor/pump which incorporates a circuit to be used for the purpose of direction indication as the motor and pump to be used are partially or completely under a fluid and the direction of rotation of the pump or motor cannot be observed to verify that the direction of rotation is as desired for operation of the motor and pump.
Dependencies are inferred from the claim text.