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US 2008/0185154 A1Published application
Sucker rod coupling extractor
AssigneeMontie W. Holladay
InventorsMontie W. Holladay, David W. Ripple
Life of this patent
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AssigneeMontie W. Holladay
InventorsMontie W. Holladay, David W. Ripple
Estimating the term…
A prior art sucker rod tong is improved to remove a coupling completely from a sucker rod assembly comprising sucker rods joined end to end by couplings. The prior art sucker rod tong has a rotatable jaw assembly and a lower backup wrench adapted to cooperate to unscrew a coupling joining first and second rods, where the coupling remains screwed to the second rod after it is unscrewed from the first rod. The improvement comprises a coupling extractor for unscrewing the coupling from the second rod so that the coupling can be replaced. The coupling extractor comprises a shaft having an extractor end portion on each end of the shaft and a shield around each extractor end portion, wherein the coupling extractor is designed and sized to fit within and to be rotated by the jaw assembly. The extractor end portion engages the inside wall of the coupling to unscrew the coupling from the second rod. The extractor end portion is preferably a tapered, left-handed spiral fluted easy-out extractor. The improvement preferably further comprises an upper backup wrench movably connected to the sucker rod tong for holding the second sucker rod when the second sucker rod is above the coupling.
In a sucker rod tong comprising a body having an opening adapted to receive a sucker rod assembly, a rotatable jaw assembly operably engaged in the body at the opening and adapted to engage the sucker rod assembly, a powered mechanism adapted to rotate the jaw assembly and a lower backup wrench operably positioned below the jaw assembly, wherein the sucker rod assembly includes a sucker rod having a threaded end and a coupling having a threaded inside wall that is threaded onto the threaded end of the sucker rod, and wherein the lower backup wrench is adapted to hold the sucker rod, the improvement comprising:
A coupling extractor adapted for engagement in a sucker rod tong for breaking loose a threaded connection between a sucker rod and a coupling, comprising:
A method for removing a coupling from a sucker rod using a sucker rod tong having a rotatable jaw assembly, comprising the steps of:
A retrofit kit for improving a sucker rod tong having a body and a rotatable jaw assembly engaged in the body, comprising:
In a sucker rod tong comprising a body having an opening adapted to receive a sucker rod assembly, a rotatable jaw assembly operably engaged in the body at the opening and adapted to engage the sucker rod assembly, a powered mechanism adapted to rotate the jaw assembly and a backup wrench operably positioned with respect to the jaw assembly, wherein the sucker rod assembly includes a sucker rod having a threaded end and a coupling having a threaded inside wall that is threaded onto the threaded end of the sucker rod, and wherein the backup wrench is adapted to hold the sucker rod, the improvement comprising:
Dependencies are inferred from the claim text.