Suspension air spring lift kit
US7934734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2008 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Jan 16, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2204/4702
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A suspension air spring lift kit has a trailing arm having an end that is pivotally connected to a hanger bracket. A vertically oriented air bag is connected between another end of the trailing arm and a frame member of a vehicle, for example, a dump truck or a trailer in a tractor-trailer combination. An air spring system having a lower bracket and an upper bracket, with an air spring bag positioned between these two brackets, is attached between the frame member and the trailing arm. When the air spring bag is inflated, the air spring system lifts the trailing arm. When the air spring bag is deflated, the air spring system allows the trailing arm to be lowered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.