{
  "patent_number": "US 1264128",
  "country": "US",
  "title": "How Early Industrial Food Mixers Used Planetary Gear Systems",
  "original_title": "Mixing-machine.",
  "summary": "A 1918 patent for a heavy-duty industrial mixing machine that used a specific gear arrangement to rotate a beater while simultaneously moving it around the bowl.",
  "what_it_does": "The patent describes a mechanical mixing apparatus designed for commercial kitchens. It utilizes a planetary gear system where the mixing tool rotates on its own axis while also revolving around the center of the mixing bowl. This dual-motion design ensures that the beater reaches all areas of the bowl, providing a more thorough and consistent mix than a single-axis mixer. The mechanism relies on a specific arrangement of drive shafts and gears housed within the mixer head to translate motor power into this complex orbital movement.",
  "what_it_does_not_cover": [
    "Does not cover hand-operated kitchen whisks or manual egg beaters.",
    "Does not cover mixers that use a single fixed-axis rotation without planetary motion.",
    "Does not cover electronic speed control or digital automation features.",
    "Does not cover mixing bowls that rotate independently of the planetary beater head."
  ],
  "filed": "1915-03-01",
  "granted": "1918-04-23",
  "expires": "1935-04-23",
  "status": "expired",
  "holder": "Hobart Manfacturing Co",
  "holder_url": "https://patentbrief.org/company/hobart-manfacturing-co",
  "inventors": [
    {
      "name": "Thomas F Rataiczak",
      "url": "https://patentbrief.org/inventor/thomas-f-rataiczak"
    },
    {
      "name": "Herbert L Johnston",
      "url": "https://patentbrief.org/inventor/herbert-l-johnston"
    }
  ],
  "times_cited": 19,
  "tags": [
    "mechanical",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/1264128/stand-mixer-kitchenaid-johnston",
  "markdown_url": "https://patentbrief.org/patent/us/1264128/stand-mixer-kitchenaid-johnston/md",
  "google_patents_url": "https://patents.google.com/patent/US1264128",
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}