4. Joints and connections
  5. Interfitted members
  6. Radially interposed shim or bushing

Loy F. Allen

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Downhole well pump control system

Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Patent

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End fitting and coupling system for sucker rods

Joints and connections – Interfitted members – Clamped members
Patent

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Flexible sucker rod unit

Wells – With below and above ground modification – Eduction pump or plunger in well
Patent

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Loaded sucker rod fitting

Joints and connections – Interfitted members – Radially interposed shim or bushing
Patent

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Profile ID: LFUS-PAI-P-578977

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