Lift assist for an electrically driven hitch on an robotic vehicle
US11547035B1 · kind B1 · utility
3Cited by
110References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2022 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | May 24, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B69/008
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A spring is combined between the chassis and the pair of links arms. An electric actuator is combined between the chassis and the pair of links arms for compressing the spring with the assistance of gravity on a downward stroke of the electric actuator while lowering the pair of link arms, and wherein the pair of link arms are raised by an outward stroke of both the electric actuator and the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.