Self-propelled vehicles including a differential system
US10953918B2 · kind B2 · utility
2Cited by
29References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2017 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Mar 11, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Self-propelled vehicles that include swiveling caster wheels and independent drive wheels are disclosed. The self-propelled vehicles are selectively steered in a caster wheel steering mode or a drive wheel steering mode. The vehicle includes a differential system that may include a differential valve that allows hydraulic fluid to be transferred between the left and right drive systems. The differential system may be operable during the caster wheel steering mode such as when the vehicle is driven for transport between sites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.