Stator tube removal and installation device

Details Stator tube removal and installation device Stator tube removal and installation device

2005-07-05

2005-07-05

Watson, Robert C. (Department: 3723)

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

Reexamination Certificate

active

06912764

ABSTRACT:
An apparatus for removing a stator tube from a position about a rotor of a progressing cavity pump is provided. The apparatus includes an actuator assembly having a base and a piston which is longitudinally displaceable relative to the base, and a pusher rod. The base of the actuator assembly is removably attachable to a discharge end of the stator tube. The pusher rod is longitudinally releasably attachable to the piston at a plurality of locations along the length of the pusher rod and is located to engage the rotor when the base is coupled to the stator tube. The pusher rod is coupled to the piston and the piston is driven by the actuator assembly. With only slight modifications the apparatus may also be used to install the stator tube on the rotor when operated in a substantially opposite way.

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