{
  "$type": "site.standard.document",
  "description": "A hopper arrangement includes a damper arrangement selectively moveable in a plurality of positions to manipulate access to the interior volume. A first position includes a standby position wherein the enclosure and the damper arrangement block access to the interior volume. Another position…",
  "path": "/patents/1066658",
  "publishedAt": "2006-06-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D46/2411",
    "DONALDSON CO INC [US]"
  ],
  "textContent": "A hopper arrangement includes a damper arrangement selectively moveable in a plurality of positions to manipulate access to the interior volume. A first position includes a standby position wherein the enclosure and the damper arrangement block access to the interior volume. Another position includes a pressure-relief position wherein the interior volume is open to a continuous airflow path through the container. In some arrangements, there is an evacuation position wherein the damper arrangement allows access to the interior volume and blocks a continuous airflow path through the container. A gas turbine intake system includes a hood, a filter arrangement downstream of the hood and a collection hopper. The collection hopper is in airflow communication with an upstream side of the filter arrangement and downstream of the hood. The collection hopper includes a standby position and a pressure-relief position. A method of filtering air includes drawing air into a hood and then into a filter arrangement. Debris from the filter arrangement is collected in a collection hopper. Further, there is a step of allowing air to bypass the hood and flow to the filter arrangement through a bypass flow passageway selectively opened by the collection hopper.",
  "title": "Gas turbine air intake system and method for air filtering"
}