Safety clamp for walking beam compressor
AssigneeOil Flow USA, Inc.
InventorWard S. Merrick, III
Life of this patent
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Abstract
Various methods and devices are provided for securing a walking beam compressor to a walking beam. In general, the walking beam compressor is a gas compressor unit that can be disposed around a piston rod extending from a walking beam of an oil well. The piston rod can be coupled to the walking beam by a securing mechanism that engages both the piston rod and the walking beam to prevent the piston rod from disengaging from the walking beam during rocking movement of the walking beam.
Claims20
An oil well pump, comprising:
- a walking beam for pumping oil out of the ground;
- a housing mated to the walking beam and having a piston rod extending therefrom;
- and
- a safety clamp having a central extension coupled to the housing and opposed legs coupled to the piston rod, the safety clamp being configured to prevent the piston rod from rotating relative to the housing;
- wherein the opposed legs are configured to engage opposing sides of the piston rod and have a length greater than a radius of the piston rod.
An oil well pump, comprising:
- a walking beam for pumping oil out of the ground;
- a compressor configured to receive and compress gas contained with oil pumped out of the ground;
- a piston rod extending between the walking beam and the compressor and having a central longitudinal axis;
- and
- a safety clamp coupled to the walking beam and the piston rod and configured to prevent the piston rod from rotating relative to the walking beam, the safety clamp having first and second legs each having a longitudinal axis extending substantially perpendicular to the central longitudinal axis of the piston rod;
- wherein the opposed legs are configured to engage opposing sides of the piston rod and have a length greater than a radius of the piston rod.
A method of securing a piston rod to a walking beam on an oil well pump, comprising:
- threading a piston rod into a housing coupled to a walking beam for pumping oil out of the ground;
- and
- coupling a safety clamp to the housing and the piston rod to prevent the piston rod from unthreading from the housing, wherein coupling the safety clamp includes coupling a central extension to the housing and coupling opposed first and second clamping legs to opposed sides of the piston rod, the first and second clamping legs having a length greater than a radius of the piston rod.
Dependencies are inferred from the claim text.