Guide for angled and curved drilling
US5395188A · kind A · utility
101Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1993 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Dec 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/665
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drilling tool for drilling a curved hole. The tool includes a curved guide tube for positioning the tube in drilling position against a wall and a flexible shaft extending through the guide tube having a drill bit on the end thereof adjacent the outlet end of the tube and a shank on the opposite end engaged in a drill tool chuck. Operation of the drill tool rotates the drill bit and the tube guides and directs the bit to drill a curved or angled hole. The drill bit can be a spade bit, a spiral bit or a ball mill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.