{
  "$type": "site.standard.document",
  "description": "The arrangement (1) or damper has a control valve for supplying and/or discharging pressurized air into and/or from a pressure chamber (5). An end of a pressure spring device (10) is connected with a rolling piston or a lid (3). Another end of the spring device is connected to an actuator device…",
  "path": "/patents/985126",
  "publishedAt": "2013-04-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60G17/0485",
    "FREUDENBERG CARL FA [DE]"
  ],
  "textContent": "The arrangement (1) or damper has a control valve for supplying and/or discharging pressurized air into and/or from a pressure chamber (5). An end of a pressure spring device (10) is connected with a rolling piston or a lid (3). Another end of the spring device is connected to an actuator device (9a) for the valve to switch the valve in dependent of pneumatic spring stroke. The spring device is designed as two-piece with a central spring (12) facing the piston or the lid and a control valve biasing spring (13) facing the valve. The central spring is strongly biased than the biasing spring.",
  "title": "Pneumatic spring assembly or pneumatic dampener with integrated valve control"
}