Precision twist drill sharpener/point splitting machine
US5400546A · kind A · utility
26Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Mar 19, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B3/32
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A twist drill sharpener employing a pair of rotary grinding wheels has three primary drill chuck receiving openings, one for alignment of the twist drill and cams on the twist drill chuck; a second receptacle for grinding the end of a chucked twist drill; and a third receptacle which receives the drill and chuck for grinding a split point on the sharpened twist drill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.