Electronic depth control for drill
US4765784A · kind A · utility
22Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1984 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Dec 6, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/175
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A drilling system for drilling circuit boards includes means for precisely controlling the depth of drilling despite surface variations in the circuit boards. The system includes a detection circuit for detecting contact between the circuit board and drill and control circuitry for thereafter causing the drill to move a predetermined distance corresponding to the desired drilling depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.