Patent · US Expired

In-line lift axle suspension system

US6880839B2 · kind B2 · utility

36Cited by
25References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 11, 2003
Grant dateApr 19, 2005
Priority date
Expiry dateOct 14, 2023

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB62D61/12
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A parallelogram lift axle suspension system includes an in-line lift bellows located between and vertically aligned with a pair of upper and lower control arms so as to provide bi-directional expansion and contraction of the lift bellows for raising and lowering the suspension while increasing the space available between the longitudinal frame rails enabling use of the suspension in certain vehicles by avoiding interference with other vehicle components of the vehicle located in this space.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.