Patent · US Expired

Impact damper

US5242157A · kind A · utility

9Cited by

7References

9Claims

0Family size

Assignee

Boge GmbH · DE

Inventors

Hartmut Bonenberger · Puchheim, DE
Holger Kirchner · Ruppichteroth, DE
Kurt Wagner · Gröbenzell, DE

Key dates

Filing date	Sep 23, 1991
Grant date	Sep 7, 1993
Priority date	—
Expiry date	Sep 23, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60G2500/20
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Impact damper for motor vehicles, the impact damper having two tubes which can be pushed one inside the other, the inner tube having a first and second fluid chamber and a gas chamber separated from the fluid chamber by a separating piston. A third fluid chamber is located behind a work piston and the tubes can be retracted or extended by changing the pressure within the fluid chambers of the impact damper.

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