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Sucker rod actuating device

  • US 6,213,722 B1
  • Filed: 03/29/1996
  • Issued: 04/10/2001
  • Est. Priority Date: 03/29/1996
  • Status: Expired due to Fees
First Claim
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1. A device for directly actuating a rod of a sucker rod pump assembly, the device comprising:

  • an electric linear motor, the motor including an armature, stators and a base and positioned about the axis of operation of the sucker rod pump, wherein the motor armature is connected to the top end of the rod; and

    a counterbalance in contact with the top end of the armature.

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