{
  "patent_number": "US 3503060",
  "country": "US",
  "title": "How Early Hard Disk Drives Accessed Data Quickly",
  "original_title": "Direct access magnetic disc storage device",
  "summary": "A 1970 patent detailing a mechanical system for moving read-write heads across magnetic disks to retrieve stored information rapidly.",
  "what_it_does": "This patent describes a mechanical assembly for a magnetic disk storage device. It focuses on the movement of a transducer, or read-write head, across the surface of a rotating magnetic disk. By using a specific actuator mechanism, the device positions the head over precise tracks on the disk to read or write data. This allowed computers to access information stored at different locations on the disk without needing to read through all the data sequentially.",
  "what_it_does_not_cover": [
    "Does not cover solid-state storage or flash memory technologies.",
    "Does not cover software-based file systems or data organization methods.",
    "Does not cover the magnetic recording medium itself, only the mechanical positioning hardware."
  ],
  "filed": "1968-09-16",
  "granted": "1970-03-24",
  "expires": "1988-09-16",
  "status": "expired",
  "holder": "JOHN J LYNOTT",
  "holder_url": "https://patentbrief.org/company/john-j-lynott",
  "inventors": [
    {
      "name": "John J Lynott",
      "url": "https://patentbrief.org/inventor/john-j-lynott"
    },
    {
      "name": "William A Goddard",
      "url": "https://patentbrief.org/inventor/william-a-goddard"
    }
  ],
  "times_cited": 9,
  "tags": [
    "semiconductors",
    "mechanical"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/3503060/hard-disk-drive",
  "markdown_url": "https://patentbrief.org/patent/us/3503060/hard-disk-drive/md",
  "google_patents_url": "https://patents.google.com/patent/US3503060",
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}