Tri-spacer
OwnerJoseph H. Froniusinventor
Life of this patent
Estimating the term…
Abstract
Tri-spacer for centering and holding drop pipe and electric wires in the center of a well casing. The tri-spacer consists of a one-piece triangular member with flexible ends providing a centering action with very little constriction, binding, or drag on the well casing when the drop pipe and electric wires are lowered or raised in the well, and at the same time keeping the drop pipe and electric wires centered. The tri-spacer includes an insert wedge for locking action to the well casing and a sharp annular ridge on the inner diameter of the tri-spacer making an impression in the drop pipe.
Claims15
Tri-spacer for spacing a drop pipe in a well casing comprising:
- a. plurality of tabular means extending equally outward from a center of a geometrical member for equally engaging against an interior of a well casing;
- b. an internal hole centrally positioned in said member for accepting said drop pipe, said internal hole including an upper and lower rim, each of said rims having an increasing internal diameter from said center to an outer edge of said rims;
- and,
- c. locking means for engaging between said internal hole and said drop pipe whereby said locking means maintains said tri-spacer in a predetermined position on said drop pipe when said drop pipe is slid down into said well casing.
Tri-spacer for spacing a drop pipe in a well casing comprising:
- a. plurality of tabular means extending equally outward from a center of a geometrical member for equally engaging against an interior of a well casing;
- b. an internal hole centrally positioned in said member for accepting said drop pipe, said internal hole including an upper and lower rim, each of said rims having an increasing internal diameter from said center to an outer edge of said rim;
- and,
- c. locking means for engaging between said internal hole and said drop pipe, said locking means including an annular sharp pointed ridge extending outwardly from said internal hole and substantially surrounding a diameter of said internal hole whereby said locking means maintains said tri-spacer in a predetermined position on said drop pipe when said drop pipe is slid down into said well casing.
Tri-spacer for spacing a drop pipe in a well casing comprising:
- a. plurality of tabular means extending equally outward from a center of a geometrical member for equally engaging against an interior of a well casing;
- b. an internal hole centrally positioned in said member for accepting said drop pipe;
- and
- c. locking means for engaging between said internal hole and said drop pipe, said locking means including a triangular sharp pointed ridge extending outwardly from said internal hole and substantially surrounding said internal diameter, a horizontal ramp locking ridge extending outwardly from a gap in said ridge, and a serrated wedge including a strap attaching said serrated wedge to said member whereby said serrated wedge engages between said drop pipe and said horizontal locking ridge, and said triangular sharp pointed ridge acts between said internal hole and said upper rim thereby locking said tri-spacer in a predetermined position on said drop pipe when said drop pipe is slid down into said well casing.
Dependencies are inferred from the claim text.