{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 86010
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  "description": "The device has two propulsion stroke-producing drives with pneumatic or hydraulic displacement systems having supply conduits. One of the supply conduits is closed by a main valve unit (161) that is arranged in a main valve chamber when the other conduit is opened. A non return valve chamber is…",
  "path": "/patents/1007155",
  "publishedAt": "2011-12-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T11/28",
    "ZIMMER GUENTHER [DE]"
  ],
  "textContent": "The device has two propulsion stroke-producing drives with pneumatic or hydraulic displacement systems having supply conduits. One of the supply conduits is closed by a main valve unit (161) that is arranged in a main valve chamber when the other conduit is opened. A non return valve chamber is provided in the main valve unit, and a spring loaded non return valve unit (182) is arranged in the non-return valve chamber, where the non return valve unit connects the conduits with each other when the latter conduit is relieved.",
  "title": "Device with a connecting valve"
}