Trailer tongue with vertical lift geometry
US6176470A · kind A · utility
6Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1998 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Nov 17, 2018 |
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.