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US 4,305,461 AGranted
Well pumping apparatus
OwnerEdward D. Meyerinventor
Life of this patent
Estimating the term…
Abstract
A pumping apparatus that may be used with a well in which a sucker rod is connected with the well so as to remain in axial alignment with the same during shifting of the well and the sucker rod is supported clear of the well and the structure for operating the same.
Claims16
In an apparatus for connection with a well casing,
- a sucker rod extending into the well casing for reciprocal operation therein,
- fluid operated means to cause the reciprocation of said sucker rod for operation in the well casing,
- said sucker rod extending through and beyond said fluid operated means,
- and means connecting said sucker rod to the apparatus exterior of the well casing at a position on said sucker rod remote from the well casing and beyond said fluid operated means to permit said sucker rod to have lateral movement along its length within said fluid operated means.
1 more element
In an apparatus for connection with a well casing,
- a hollow elongated housing,
- means supporting said housing on the well casing so as to maintain said housing in substantial axial alignment with the well casing,
- hollow ram means extending through the hollow interior of said housing and operable for reciprocating movement relative thereto,
- means for axially aligning said ram means concentrically within said housing,
- a sucker rod reciprocally movable within the well casing and extending outwardly therefrom and laterally movable in the hollow interior of said ram means such that said ram means is positioned between the well casing and an end of said sucker rod remote from the well casing,
- and means connecting said ram means with said remote end of said sucker rod for effecting reciprocal movement of said sucker rod within the well casing and for supporting the remote end of said sucker rod exterior of the well casing such that the sucker rod is in substantially a straight-line disposed within the well casing so that the sucker rod is maintained in axial alignment with the well casing.
3 more elements
Dependencies are inferred from the claim text.