Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2007-10-26
2010-06-08
Lee, Edmund H. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S279000
Reexamination Certificate
active
07731885
ABSTRACT:
A rod guide10for positioning on a sucker rod includes a sleeve-shaped guide body12and two or more spiraling vanes14, 16each 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 portion24spiraling in a forward direction, and a backward portion26spiraling in a backward direction rotatably opposite the forward direction. The rod guide may be used for either reciprocating rod or rotating rod applications.
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Browning & Bushman P.C.
Lee Edmund H.
Robbins & Myers Energy Systems L.P.
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