Patent US3561053A successfully refreshed from Google Patents.
US3561053A
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US
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Extrusion device
Assignee: OI Glass Inc
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Filing: 1967-05-15
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Granted: 1971-02-09
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Expires: 1987-05-15
Abstract
Abstract AN EXTRUSION HEAD IS PROVIDED FOR DISTRIBUTING HEAT SENSITIVE THERMOPLASTIC MATERIAL TO A PLURALITY OF OUTLET ORIFICES. AN INLET PASSAGE BRANCHES SYMMETRICALLY TO A PLURALITY OF OUTLET PASSAGES WHICH COMMUNICATE WITH THE RESPECTIVE OUTLET ORIFICES. THE FLOW PATH FROM THE INLET ORIFICE TO ANY OF THE OUTLET ORIFICES IS SUBSTANTIALLY EQUAL. BALANCING OF FLOW THROUGHTHE RESPECTIVE OUTLET ORIFICES IS ACHIEVED SOLELY BY THE DESIGN OF THE PASSAGEWAY NETWORK AND TEMPERATURE CONTROL OF THE THERMOPLASTIC MATERIAL PROVIDED BY HEATING ELEMENTS AT THE OUTLET ORIFICES.
Inventors
- 👤 Roy Gerald Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:04
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/695; B29C48/03; B29C48/09; B29C48/30; B29C48/32; B29C48/335; B29C48/10; B29C48/345
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |