{
  "$type": "site.standard.document",
  "description": "A tow hitch assembly includes a draw bar and a hitch ball mount pivotally supported by the draw bar. A compression spring is disposed longitudinally between the draw bar and the hitch ball mount. The compression spring exerts a force that opposes a downward pivoting motion of the hitch ball mount…",
  "path": "/patents/1291604",
  "publishedAt": "2021-06-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60D1/248",
    "U-Haul International, Inc."
  ],
  "textContent": "A tow hitch assembly includes a draw bar and a hitch ball mount pivotally supported by the draw bar. A compression spring is disposed longitudinally between the draw bar and the hitch ball mount. The compression spring exerts a force that opposes a downward pivoting motion of the hitch ball mount when weight is placed on the hitch ball mount. The compression spring cooperates with an indicator configured to indicate to a user whether the weight placed on the hitch ball mount is within a predetermined weight range. The compression spring is removable and replaceable with a second compression spring that has a different spring constant. The second compression spring cooperates with the indicator to indicate to a user whether the weight placed on the hitch ball mount is within a second, different predetermined weight range.",
  "title": "Ball Mount with Indicator"
}