Electric trolley
US11932119B2 · kind B2 · utility
0Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Jun 26, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2201/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Electric trolley includes safety controller that determines whether or not to stop the driving of driving wheel, and driving commander that outputs, to the motor driver, (i) an operation permission signal for permitting motor to be operated and (ii) a control signal for controlling an operation of motor, in which safety controller performs control to stop inputs of the operation permission signal and the control signal to motor driver when the safety controller determines to stop the driving of driving wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.