Suspension for vans or semi-trailers mounted under a sliding frame, which frame has bolted-in cross members, independent air spring towers, and, oil-free shocks
US10011153B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 24, 2015 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Nov 28, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2300/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A suspension for vans or semi-trailers has a sliding (or slider) frame that can be slid longitudinally between spaced, left and right trailer stringers. The sliding frame is coupled within the stringers for longitudinal sliding between forward and rearward extremes. The sliding frame is formed by a pair of left and right rails spaced by two or three or more cross members. The sliding frame has an even number of independent air-spring support towers. The support towers are welded to the rails, but the cross members are bolted. The air-spring support towers can take semi-funnel shapes to having a lower narrower end forming an air-spring seat, and flaring upwardly from there to upper ends connected high on the rails to funnel the weight of the van or trailer from over a wider area to more of a pinpoint distribution on the air-spring seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.