{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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    "mimeType": "image/png",
    "size": 93598
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  "description": "The pneumatic servomotor has a housing (101) made from a bowl (105) with a rim (153) and a cover (103), with its inner volume (107) divided into a variable pressure working chamber (109) and a low pressure chamber (111) by an inner sliding and sealed skirt (113) with a central aperture (115) for a…",
  "path": "/patents/1093064",
  "publishedAt": "2003-09-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/569",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The pneumatic servomotor has a housing (101) made from a bowl (105) with a rim (153) and a cover (103), with its inner volume (107) divided into a variable pressure working chamber (109) and a low pressure chamber (111) by an inner sliding and sealed skirt (113) with a central aperture (115) for a pneumatic piston (117) with a three-way valve (123). The two chambers are sealed from one another by inner (156) and outer (157) seals, the outer seal being fitted in a fold in the edge of the skirt enclosing a low-pressure cavity.",
  "title": "Pneumatic brake servo with improved seals"
}