{
  "$type": "site.standard.document",
  "description": "Panel-like air filter cartridge (11) for I.C. motors, comprising a pack (13) of filtering material having a prismatic shape in which an upstream face (15) and a downstream face (17) are defined for inletting the air to be purified and for outletting the air that has been purified, respectively, a…",
  "path": "/patents/1424292",
  "publishedAt": "2025-10-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D46/0002",
    "OFFICINE METALLURGICHE G CORNAGLIA S P A [IT]"
  ],
  "textContent": "Panel-like air filter cartridge (11) for I.C. motors, comprising a pack (13) of filtering material having a prismatic shape in which an upstream face (15) and a downstream face (17) are defined for inletting the air to be purified and for outletting the air that has been purified, respectively, a polyurethane peripheral gasket (19) defining a corresponding first frame (21) surrounding the downstream face (17), and a second frame (23) surrounding a portion (27) of the cartridge (11) free from filtering material, the first frame (21) and the second frame (23) being coplanar and having a side (25) in common, wherein said downstream face (17) is substantially flat and said upstream face (15) comprises at least a first (29) and a second (31) flat portion, said first and second portions lying on non-coincident planes, said first flat portion (29) being parallel to the downstream face (17) and said second flat portion (31) being oblique relative to the downstream face (17), the thickness of the filtering material pack (13) at the first portion (29) being greater than the thickness of the filtering material pack (13) at the second portion (31), wherein the area of the second portion (31) of the upstream face (15) is larger than the area of the first portion (29) of the upstream face (15).",
  "title": "COMPACT PANEL LIKE AIR FILTER CARTRIDGE WITH IMPROVED EFFICIENCY FOR I.C. MOTORS"
}