Direct plug-in cordless screwdriver
US5525889A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Sep 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure concerns a cordless electric screwdriver which incorporates its own set of male electric power tangs for direct connection to a standard, household power socket. The tangs are extended or retracted from the ergonomically designed housing by virtue of communal mounting upon a carriage which is movably supported by the housing. Further, by orienting the projection of the extended tangs to be centered on a line passing through the center of gravity for the screwdriver, the screwdriver is facilitated to endure extended periods of support solely by the tangs being "plugged-in" to the household power socket. The ergonomic design features of the housing include a combination of surface texturing as well as relative cross-section sizing and shaping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.