Patent ID: 8714935

Claim:
A method of running a down hole rotary pump, comprising the steps of: providing a gear box having an input end and an output end, the gear box being capable of receiving an input of a first speed at the input end and producing an output of a second speed which is one of either faster or slower than the first speed at the output end; positioning the gear box down hole with the input end coupled to a down hole end of a sucker rod by a telescopic coupling that accommodates axial movement between a downhole end of the sucker rod and a rotor of the rotarty pump during operation of the rotary pump and with the output end coupled to the rotor of a rotary pump; and applying a driving force to the sucker rod to rotate the sucker rod at the first speed, with the rotational force being transmitted to the rotor of the rotary pump through the gear box which rotates the rotor of the rotary pump at the second speed.