{
  "$type": "site.standard.document",
  "description": "Unfiltered air (2) enters a fixed housing (1) and passes through a flat filter element (4), sealed (10) round the edges (5b), to a filtered air outlet (3). Projecting catches (5,5a) on opposite edges of the filter cassette (5) engage a catch element (7,8) on the fixed housing and on a swiveling and…",
  "path": "/patents/1078713",
  "publishedAt": "2005-04-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D46/0004",
    "MANN & HUMMEL GMBH [DE]"
  ],
  "textContent": "Unfiltered air (2) enters a fixed housing (1) and passes through a flat filter element (4), sealed (10) round the edges (5b), to a filtered air outlet (3). Projecting catches (5,5a) on opposite edges of the filter cassette (5) engage a catch element (7,8) on the fixed housing and on a swiveling and removable lid (9) with an electronic control circuit (6). The lid has a seal (15) and is held by a fastening screw (14) and an axle (12) engaging on a claw (13) on the fixed housing. The lid covers an aperture (11) through which the filter element may be removed.",
  "title": "Air filter apparatus in the intake system of an internal combustion engine"
}