Trailer swivel wheel
US4779889A · kind A · utility
Inventor
Key dates
| Filing date | Jan 12, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Jan 12, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60D1/66
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A trailer swivel wheel assembly incorporating a gooseneck-shaped axle to carry a standard wheel rim and tire. The axle is removably received within a swivel housing pivotably mounted to the tongue bar of a trailer, and pivotable to position the wheel between raised position above the tongue bar, a lowered position below the tongue bar, and intermediate positions therebetween. The trailer swivel is secured at each position by a spring loaded locking pin carried on the swivel housing. The axle swivels within the swivel housing to permit the trailer to be maneuverably positioned while the trailer tongue is supported on the wheel rim and tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.