{
  "$type": "site.standard.document",
  "description": "A blade (30) includes a hollow metal airfoil (32) having an opening to an internal cavity (54) in a first major surface (42). A metal cover (50) is adhesively bonded to a socket (52) formed around the opening. The cover encloses the cavity and provides a continuous first major surface.",
  "path": "/patents/1009712",
  "publishedAt": "2011-08-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D5/147",
    "UNITED TECHNOLOGIES CORP [US]"
  ],
  "textContent": "A blade (30) includes a hollow metal airfoil (32) having an opening to an internal cavity (54) in a first major surface (42). A metal cover (50) is adhesively bonded to a socket (52) formed around the opening. The cover encloses the cavity and provides a continuous first major surface.",
  "title": "Hollow fan blade"
}