Apparatus for driving the armature of an electric stapler
US5105329A · kind A · utility
12Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1990 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Feb 28, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H47/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Solid state control circuitry for driving an electromagnetic armature of a battery operated electric stapler. The armature is activated by a trigger signal generated by a trigger switch which discharges an energy storage device through the armature. Energy is rapidly replenished in the energy storage device following its discharge; but if a subsequent trigger signal is not forthcoming, the control circuit reverts to a quiescent state, thereby reducing power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.