Rod guide
US6152223A · kind A · utility
31Cited by
41References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1998 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Sep 14, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1071
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rod guide for a cylindrical rod. The rod guide includes a cylindrical body 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 sidewalls parallel to each other and parallel to the diameter of the cylindrical body. A second pair of opposed fins, each has a pair of radiused sidewalls wherein each second fin extends outward radially from the cylindrical body to a terminal end with the fin widest at its terminal end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.