Drill steel idler guide
US3951470A · kind A · utility
8Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 1975 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | May 1, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C39/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drill steel idler guide having an internal sleeve rotatably supported in a base by means of ball bearings fitting in opposed annular grooves in the sleeve and base, said sleeve having a bore through which a drill steel can slidably fit. Means is provided for directing pressure air through the base and into an annular space between the base and the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.