Pneumatic ride level control system

Land vehicles – Suspension modification enacted during travel – Riding or suspension height

Reexamination Certificate

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Reexamination Certificate

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07980566

ABSTRACT:
Disclosed is a ride level control system for a motor vehicle composed of a pneumatic spring (1), a connecting line (3) which connects the pneumatic spring (1) to an atmospheric port (5), and a first valve (2) which, in a first switched state, disconnects the connecting line (3) and, in a second switched state, clears it, wherein a vessel (4) is arranged in the connecting line (3) between the first valve (2) and the atmospheric port (5).

REFERENCES:
patent: 3552767 (1971-01-01), Yew et al.
patent: 3572676 (1971-03-01), Yew
patent: 4633761 (1987-01-01), Schweikert
patent: 4826141 (1989-05-01), Buma et al.
patent: 6056277 (2000-05-01), Wode
patent: 2002/0166321 (2002-11-01), Oldenettel
patent: 2003/0047853 (2003-03-01), Behmenburg
patent: 2004/0050042 (2004-03-01), Frazer
patent: 10327485 (2005-05-01), None
patent: 8156566 (1996-06-01), None

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