Patent AT-E40073-T1: [Translated] SCREW EXTRUDER.
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.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"009:25"
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| contactPoint |
{
"fn": "NIH/NCBI Data Team",
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"hasEmail": "mailto:info@ncbi.nlm.nih.gov"
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| 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",
"title": "Official Data Source",
"mediaType": "text/html",
"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"
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|
| identifier | https://healthdata.gov/api/views/t5g3-cth5 |
| issued | 2025-09-05 |
| keyword |
[
"chemistry",
"innovation",
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"pubchem",
"research"
]
|
| landingPage | https://healthdata.gov/d/t5g3-cth5 |
| modified | 2025-09-06 |
| programCode |
[
"009:066"
]
|
| publisher |
{
"name": "National Center for Biotechnology Information (NCBI)",
"@type": "org:Organization"
}
|
| theme |
[
"NIH"
]
|
| title | Patent AT-E40073-T1: [Translated] SCREW EXTRUDER. |
