Data processing device and plug-in package
US5343009A · kind A · utility
10Cited by
6References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 17, 1991 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Dec 17, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S439/911
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a data processing device, when exchanging a plug-in package with another without breaking off the power to be supplied to the data processing device, a package removing lever is equipped with a locking piece. The lever does not move and the package hence cannot be removed, until the locking piece is released. In response to the release operation of the locking piece, a switch is activated to break off the power supply for the package. After the package is mounted perfectly, the power for the package is switched on by the action of the locking piece, thus preventing any misoperation when removing the package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.