{
  "patent_number": "US 2133235",
  "country": "US",
  "title": "How Glass Fibers Are Spun for Insulation",
  "original_title": "Method and apparatus for making glass wool",
  "summary": "A 1933 invention by Games Slayter that describes the process of melting glass and blasting it into fine, flexible fibers to create insulation.",
  "what_it_does": "The patent details a method for producing glass wool by melting glass and using high-velocity steam or air jets to attenuate the molten material into thin, flexible fibers. These fibers are then collected to form a mat or batt of insulating material. By controlling the temperature of the glass and the pressure of the gas blast, the process creates a lightweight, fire-resistant, and thermally efficient material that traps air within the fiber matrix.",
  "what_it_does_not_cover": [
    "Does not cover the chemical composition of the glass itself.",
    "Does not cover the use of centrifugal force or spinning disks to form fibers.",
    "Does not cover the application of binding resins to hold the fibers together."
  ],
  "filed": "1933-11-11",
  "granted": "1938-10-11",
  "expires": "1955-10-11",
  "status": "expired",
  "holder": "Owens Illinois Glass Co",
  "holder_url": "https://patentbrief.org/company/owens-illinois-glass-co",
  "inventors": [
    {
      "name": "Slayter Games",
      "url": "https://patentbrief.org/inventor/slayter-games"
    }
  ],
  "times_cited": 22,
  "tags": [
    "mechanical",
    "materials"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/2133235/fiberglass-glass-wool-slayter",
  "markdown_url": "https://patentbrief.org/patent/us/2133235/fiberglass-glass-wool-slayter/md",
  "google_patents_url": "https://patents.google.com/patent/US2133235",
  "relatedPatents": [
    {
      "patentNumber": "3711262",
      "countryCode": "US",
      "title": "How Corning Invented Modern Fiber Optic Cables",
      "url": "https://patentbrief.org/patent/us/3711262/optical-fiber-waveguide"
    },
    {
      "patentNumber": "2911759",
      "countryCode": "US",
      "title": "How the Float Glass Process Makes Perfectly Flat Window Panes",
      "url": "https://patentbrief.org/patent/us/2911759/float-glass-pilkington"
    },
    {
      "patentNumber": "3953566",
      "countryCode": "US",
      "title": "Making Strong, Porous PTFE: The Gore-Tex Process",
      "url": "https://patentbrief.org/patent/us/3953566/gore-tex-expanded-ptfe"
    },
    {
      "patentNumber": "808897",
      "countryCode": "US",
      "title": "How Willis Carrier Invented the Modern Air Conditioner",
      "url": "https://patentbrief.org/patent/us/808897/air-conditioning-carrier"
    },
    {
      "patentNumber": "1721815",
      "countryCode": "US",
      "title": "How the First Cotton Swabs Were Mass-Produced",
      "url": "https://patentbrief.org/patent/us/1721815/q-tip-cotton-swab"
    }
  ]
}