发明名称 IMPROVED ROD GUIDE
摘要 A rod guide for a cylindrical rod. The rod guide includes a cylindrical bo dy surrounding and coaxial with the rod. A first pair of opposed fins extends from the cylindrical body, each first fin having a pair of planar sidewalk parallel t o each other and parallel to the diameter of the cylindrical body. A second pair of opposed fins, each has a pair of radiused sidewalk wherein each second fin extends outward radially from the cylindrical body to a terminal end with the fin widest at its terminal end.< /SDOAB>
申请公布号 CA2278263(C) 申请公布日期 2002.02.19
申请号 CA19992278263 申请日期 1999.07.20
申请人 NORRIS SUCKER RODS 发明人 CRAFT, STEVE;WHITE, BRETT;ABDO, GARY E.;WHITE, JACK DALTON
分类号 E21B17/10;(IPC1-7):E21B17/00 主分类号 E21B17/10
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