Battery-powered tool
US5298821A · kind A · utility
103Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1991 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Feb 28, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery-powered tool (10) generally comprises a motor (24) having a positive terminal (64) and a negative terminal (66) extending therefrom for continuous engagement to a rotatable actuator (26). Actuator (26) has a plurality of conductive arms (28) extending therefrom for contact with a battery assembly (20) such that the actuator (26) can be selectively rotated to engage the motor (24) in both high speed and low speed operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.