{
  "$type": "site.standard.document",
  "description": "A kneeling valve assembly for transport vehicles to enable a quick and convenient kneeling operation to permit safe ingress and egress from the vehicle. The kneeling valve assembly employs a suspension member positioned between the vehicle body and the axle of the transport vehicle to raise and…",
  "path": "/patents/1092435",
  "publishedAt": "2003-10-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60G17/0525",
    "ROSS OPERATING VALVE CO [US]"
  ],
  "textContent": "A kneeling valve assembly for transport vehicles to enable a quick and convenient kneeling operation to permit safe ingress and egress from the vehicle. The kneeling valve assembly employs a suspension member positioned between the vehicle body and the axle of the transport vehicle to raise and lower the transport vehicle relative to a ground level. The kneeling valve assembly includes a first valve that is operable to selectively permit fluid flow between the inlet passage and the suspension member to raise the transport vehicle relative to the ground level. A second valve is provided that is operable to selectively permit fluid flow between the suspension member and the exhaust passage to lower the transport vehicle relative to the ground level. A leveling trigger is fluidly coupled to the inlet passage and is operable to determine a height of the transport vehicle relative to the ground level. Finally, a third valve is provided that is operable to selectively permit fluid flow between the inlet passage and the suspension member to maintain a predetermined height above the ground level.",
  "title": "Suspension control unit and control valve"
}