{
  "$type": "site.standard.document",
  "description": "An air filter housing (12) includes twist and lock structure (42) having a first position permitting axial movement (66) of a cover (34) and base (36) relative to each other, and being rotatable in a first rotational direction (44) from the first position to a second position, and in the second…",
  "path": "/patents/1105880",
  "publishedAt": "2002-03-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D35/30",
    "NELSON IND INC [US]"
  ],
  "textContent": "An air filter housing (12) includes twist and lock structure (42) having a first position permitting axial movement (66) of a cover (34) and base (36) relative to each other, and being rotatable in a first rotational direction (44) from the first position to a second position, and in the second position preventing axial movement of the base and cover relative to each other, and being rotatable in a second opposite rotational direction (64) from the second position to the first position. Anti-rotation lock structure (70, 110, 140) provides a rotational retention force holding the twist and lock structure in the second position. The anti-rotation lock structure includes an arm (74, 112, 142) flexibly bendable about a bend line extending parallel to the axis (14) of the housing.",
  "title": "Twist and lock filter housing"
}