Method of forming and securing a rod guide on a sucker rod
AssigneeRobbins & Myers Energy Systems L.P.
InventorGary E. Abdo
Life of this patent
Estimating the term…
Abstract
A rod guide 10 for positioning on a sucker rod includes a sleeve-shaped guide body 12 and two or more spiraling vanes 14, 16 each extending radially outward from the sleeve-shaped body, with each vane spiraling about the body and defining a flow path between circumferentially spaced vanes. Each vane has a forward portion 24 spiraling in a forward direction, and a backward portion 26 spiraling in a backward direction rotatably opposite the forward direction. The rod guide may be used for either reciprocating rod or rotating rod applications.
Claims14
A method of forming and securing a rod guide on a sucker rod, comprising:
- injection molding a guide body on the sucker rod to secure the rod guide on the sucker rod, the guide body including a sleeve-shaped plastic guide body, and the rod guide including two or more plastic material vanes each extending radially outward from the sleeve-shaped guide body, each vane spiraling about the guide body and defining a flow path between circumferentially spaced vanes;
- each vane having a forward portion spiraling in a forward direction, and a backward portion spiraling in a backward direction rotatably opposite the forward direction;
- and
- each vane extending circumferentially about the guide body from 130° to 220° within a plane perpendicular to a central axis of the guide body.
A method of forming and securing a rod guide on a sucker rod, comprising:
- injection molding a guide body on the sucker rod to secure the rod guide on the sucker rod, the guide body including a sleeve-shaped plastic guide body, and the rod guide including two or more plastic material vanes each extending radially outward from the sleeve-shaped guide body, each vane spiraling about the guide body and defining a flow path between circumferentially spaced vanes, the guide body circumferentially surrounding the sucker rod within a plane perpendicular to a central axis of the rod guide;
- each vane having a forward portion spiraling in a forward direction, and a backward portion spiraling in a backward direction rotatably opposite the forward direction;
- and
- each vane extending circumferentially about the guide body from 130° to 220° within a plane perpendicular to a central axis of the guide body, and having a circumferential width of from 30 to 60°.
A method of forming and securing a rod guide on a sucker rod, comprising:
- injection molding a guide body on the sucker rod to secure the rod guide on the sucker rod, the guide body including a sleeve-shaped plastic guide body, and the rod guide including two or more plastic material vanes each extending radially outward from the sleeve-shaped guide body, each vane spiraling about the guide body and defining a flow path between circumferentially spaced vanes, the guide body circumferentially surrounding the sucker rod within a plane perpendicular to a central axis of the rod guide;
- each vane having a forward portion spiraling in a forward direction, and a backward portion spiraling in a backward direction rotatably opposite the forward direction;
- and
- each vane extending circumferentially about the guide body from 130° to 220° within a plane perpendicular to a central axis of the guide body, and an end of each vane being tapered radially inward toward the sleeve-shaped guide body.
Dependencies are inferred from the claim text.