Power assist wagon
US9925999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Sep 28, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2200/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power assist system for a wagon is provided. The power assist system provides a rotational force to one or more drive wheels under certain conditions to provide propulsion for the wagon. The power assist wagon preferably includes a drive system for providing the rotational force to the drive wheel, a control system for determining when the drive system should be activated and how much propulsion assist to provide to the drive wheel, and a power system for providing power to the drive system. The power assist wagon may also have a safety cut-off system to preclude the drive system from providing a rotational force to the drive wheel 16 even when the system is in the “on” mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.