{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "bureauCode": [
    "009:25"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "NIH/NCBI Data Team",
    "hasEmail": "mailto:info@ncbi.nlm.nih.gov"
  },
  "description": "An extrusion apparatus having a barrel (3) and a rotatable threaded screw (1) coaxially positioned therein is disclosed. The apparatus includes an upstream inlet section having an opening (13) therein for receiving material to be processed by the apparatus, a compression section (2) downstream of the inlet section, and a mixing or plasticizing section (7/8) downstream of the compression section. The interior surface of the barrel is provided with an undercut (12) therein which intercommunicates the feed opening with the compression section and has a portion thereof which extends downstream in the compression section about the interior surface of the barrel with a continuously decreasing cross-sectional area. The undercut may be formed in a cylindrical insert (9), carried within the barrel and, in an alternate embodiment, a second undercut cylindrical insert positioned about the first insert and rotatable relative thereto may be employed to vary the cross-sectional area of the undercut.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "description": "Access the complete Patent AT-E40073-T1: [Translated] SCREW EXTRUDER. on the official website.",
      "downloadURL": "https://pubchem.ncbi.nlm.nih.gov/patent/AT-E40073-T1",
      "mediaType": "text/html",
      "title": "Official Data Source"
    }
  ],
  "identifier": "https://healthdata.gov/api/views/t5g3-cth5",
  "issued": "2025-09-05",
  "keyword": [
    "chemistry",
    "innovation",
    "patent",
    "pubchem",
    "research"
  ],
  "landingPage": "https://healthdata.gov/d/t5g3-cth5",
  "modified": "2025-09-06",
  "programCode": [
    "009:066"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "National Center for Biotechnology Information (NCBI)"
  },
  "theme": [
    "NIH"
  ],
  "title": "Patent AT-E40073-T1: [Translated] SCREW EXTRUDER."
}