Drill adaptor
US4638874A · kind A · utility
1Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1983 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Jul 26, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7009
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention provides an adaptor which comprises a hexagonal tail portion adapted to engage in a drilling machine, and a leading portion which is adapted to receive a circular drill rod in locking relationship. Sealing means is provided between the drilling machine and the adaptor and the latter and the drill rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.