{
  "patent_number": "US 11945698",
  "country": "US",
  "title": "How Mobile Cranes Power Their Upper Parts Using The Lower Base",
  "original_title": "Mobile construction crane comprising a superstructure and an undercarriage and one or more electrical consumers",
  "summary": "A design for mobile construction cranes that moves the power generator to the base while keeping the control electronics separate and protected.",
  "what_it_does": "This patent describes a way to power the heavy-duty components of a construction crane—like the hoisting winch, trolley drive, and lights—by placing the electrical generator in the crane's undercarriage rather than the top superstructure. Crucially, it requires the 'switchgear cabinet' (the box containing the generator's control electronics) to be physically separated from the generator itself, but still located on the undercarriage. This setup uses a rotary union to pass power from the base up to the rotating top part, allowing the crane to operate efficiently while keeping sensitive electronic controls away from the vibration and heat of the generator.",
  "what_it_does_not_cover": [
    "Does not cover cranes where the power generator is located in the top superstructure.",
    "Does not cover systems where the switchgear cabinet is integrated into the same physical housing as the generator.",
    "Does not cover stationary tower cranes that lack an undercarriage."
  ],
  "filed": "2019-10-24",
  "granted": "2024-04-02",
  "expires": null,
  "status": "active",
  "holder": "Liebherr Werk Biberach GmbH",
  "holder_url": "https://patentbrief.org/company/liebherr-werk-biberach-gmbh",
  "inventors": [
    {
      "name": "Martin Aßfalg",
      "url": "https://patentbrief.org/inventor/martin-afalg"
    },
    {
      "name": "Michael Eggert",
      "url": "https://patentbrief.org/inventor/michael-eggert"
    },
    {
      "name": "Gerhard Schmid",
      "url": "https://patentbrief.org/inventor/gerhard-schmid"
    }
  ],
  "times_cited": 0,
  "tags": [
    "mechanical",
    "automotive",
    "energy"
  ],
  "abstract": "The invention relates to a mobile construction crane comprising a superstructure and an undercarriage, wherein one or more electrical consumers are provided in or at the superstructure, wherein a supply of the one or more electrical consumers with electrical energy takes place by at least one current generator installed in the undercarriage.",
  "url": "https://patentbrief.org/patent/us/11945698/raptor-3-engine",
  "markdown_url": "https://patentbrief.org/patent/us/11945698/raptor-3-engine/md",
  "google_patents_url": "https://patents.google.com/patent/US11945698",
  "relatedPatents": []
}