Electrical hand tool machine with soft-start
US6882127B2 · kind B2 · utility
641Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Sep 2, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25F5/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical hand tool machine (1) having a motor switch (2) configured as a button and a current regulator (4) disposed in the current circuit of an electrical motor (3), having a soft-start input (5), in whose branch current a timing capacitor (6) is arranged. A current-direction-dependent element (7) is arranged between the soft-start input (5) and the capacitor (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.