Trailer tongue with vertical lift geometry
US6311954A · kind A · utility
9Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Nov 28, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S9/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A trailer tongue includes a support and a support leg slidingly and pivotally engaged with the support. When the support leg is raised or lowered the trailer tongue moves in a substantially vertical direction. In a preferred embodiment, the trailer tongue includes a rigid strut having first and second ends and a mechanism for extending and retracting the support leg pivotally connect to the support and the support leg. The first end of the rigid strut is pivotally connected to the support leg and the second end is pivotally connected to the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.