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US 4,637,459 AGranted
Anti rotational device for down hole hydraulic pumping unit
OwnerLouis J. Rousselinventor
Life of this patent
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Abstract
An anti rotational device is illustrated for use in a down hole pumping unit operated by a sucker rod driven by a hydraulic pump, fixing the cylinder rod of the hydraulic pump while permitting rotation of the sucker rod driven thereby.
Claims7
Apparatus for connecting a sucker rod used for operating a down hole pump and a hydraulic pump comprising:
- a pair of vertically spaced bracket members;
- a vertical spacer carrying each of said bracket members;
- vertical guide means permitting vertical movement of said bracket members and said vertical spacer but preventing rotation thereof about a vertical axis;
- means fastening an extensible portion of said hydraulic pump to an upper of said bracket members;
- means fastening said sucker rod to a lower of said bracket members for rotation thereon;
- and
- means connected to said sucker rod imparting rotation thereto.
4 more elements
For use in a down hole pumping unit operated by a sucker rod driven by a hydraulic pump having a cylinder and cylinder rod, an anti rotational device for connecting said cylinder rod to said sucker rod while permitting rotation of the sucker rod comprising:
- vertical spacer means connectable adjacent an upper end thereof in fixed relation to said cylinder rod;
- means rotating said sucker rod;
- means connecting said sucker rod adjacent a lower end of said vertical spacer means for rotation relative thereto;
- and
- vertical guide means permitting vertical movement of said vertical spacer means while preventing rotation thereof.
2 more elements
Dependencies are inferred from the claim text.