{
  "$type": "site.standard.document",
  "description": "An indicating unit (9) is fixed above the battery electrodes and has a cylinder (11) which is immersed in the electrolyte. The cylinder contains a piston (13) which is held in position by an indicating element (23) against pressure from a spring (22). When the indicating element breaks due to…",
  "path": "/patents/1087827",
  "publishedAt": "2004-04-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/48",
    "RENAULT SA [FR]"
  ],
  "textContent": "An indicating unit (9) is fixed above the battery electrodes and has a cylinder (11) which is immersed in the electrolyte. The cylinder contains a piston (13) which is held in position by an indicating element (23) against pressure from a spring (22). When the indicating element breaks due to corrosion the piston moves upward and a coloured piston cap (17) becomes visible through a transparent material (25) with bevelled tip (27) An Independent claim is also included for : A battery which uses an indicating element to restrain a spring loaded piston with coloured cap",
  "title": "Device for diagnosing of the state of corrosion of a battery, in particular one of a vehicle"
}