{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 114306
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  "description": "The contact piece consists of at least two materials; one part (2) is of a conducting material with a porous structure (23). At least part of the porous structure is occupied by a second material (3) and the conducting, porous part is embedded in the second material or in a third material. The…",
  "path": "/patents/1112699",
  "publishedAt": "2001-05-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/50",
    "M E STEINEMANN & CO AG [CH]"
  ],
  "textContent": "The contact piece consists of at least two materials; one part (2) is of a conducting material with a porous structure (23). At least part of the porous structure is occupied by a second material (3) and the conducting, porous part is embedded in the second material or in a third material. The first part can be made of metal balls pressed and/or sintered or can be a metal foam. Independent claims are also included for the following: the use of pressed and/or sintered metal granulate or porous metal foam as a conductor, a vehicle with a contact piece and an electric motor with at least one contact piece.",
  "title": "Electrically conductive contact piece, material for and vehicle provided with such contact piece"
}