Drill for inexperienced users
US6386803B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2000 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Jul 13, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/91
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A drill (100) for drilling a material (104) with a drill bit (102) which is specially adapted for use by inexperienced users is provided. The drill (100) includes a rotatable helix screw (132) having a helix groove (134). A support block (136) travels up and down the helix screw (132) when the helix screw (132) is rotated via a handle section (120). A key pin (138) is mounted in the support block (136) to ride in the helix groove (134). Preferably, the center of mass of the support block (136) is tangential to the helix screw (132). A short level section (304) is formed in the bottom of the helix groove (134) such that the key pin (138) rests in the level section (304) when not in use. The drill (100) may comprise an overhead support mechanism (108) for rotatably supporting the drill (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.