Guide attachment for portable power drills
US4072440A · kind A · utility
12Cited by
6References
12Claims
0Family size
Inventor
Key dates
| Filing date | Mar 11, 1977 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Mar 11, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/5653
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reliable, inexpensive drill attachment for positioning a portable power drill relative to an article to be drilled includes adjustable means for aligning the attachment relative to the axis of the drill and an improved base for supporting the drill to accurately align and hold the drill axis in a normal position relative to a flat surface to be drilled or to a cylindrical or compound curved surface such as a spherical surface. A plurality of feet are positioned at various locations on the base to enable the attachment to adapt to various surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.