{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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  "description": "The present invention relates to a flap valve arrangement, for controlling the flow of air through a duct, comprising at least one spindle and a flap valve connected to the spindle, for moving the flap valve between a first position for substantially closing the air duct and a second position for…",
  "path": "/patents/1083009",
  "publishedAt": "2004-10-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/00678",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "The present invention relates to a flap valve arrangement, for controlling the flow of air through a duct, comprising at least one spindle and a flap valve connected to the spindle, for moving the flap valve between a first position for substantially closing the air duct and a second position for substantially opening the duct wherein the flap valve is, at least at, the free end thereof covered with a flexible material, such as a foam, in order to provide a flexible member at the end of the flap valve. The flat valve arrangement according to the present invention has particular application in a heating, ventilation and air conditioning system, in particular in a motor vehicle.",
  "title": "Flap valve arrangement"
}