Patent · US Expired

Air suspension

US4613116A · kind A · utility

24Cited by
4References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 28, 1984
Grant dateSep 23, 1986
Priority date
Expiry dateNov 28, 2004

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60G17/04
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

An air suspension comprises a shock absorber, first and second air chambers surrounding the shock absorber, a valve for affording and shutting off communication between the first and second air chambers and an electric motor for operating the valve. The first and second air chambers are constituted such that they act as parallel springs or series springs when both air chambers shut off to each other.

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