Electric working machine
US11146087B2 · kind B2 · utility
0Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | May 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric working machine of one aspect of the present disclosure includes a connection port, a control circuit, and/or a power supply switch. The power supply switch is provided on a power supply path extending from a battery pack connected to the connection port to the control circuit. The power supply switch maintains an ON state while a power supply permission signal is output from the battery pack to the electric working machine. The control circuit outputs an ON-command signal to the power supply switch for a specified period of time in response to loss of the power supply permission signal from the battery pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.