US3553776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pelletizer die plate
Assignee: Black Clawson Co
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Filing: 1968-09-23
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Granted: 1971-01-12
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Expires: 1988-09-23
Abstract
Abstract A DIE PLATE FOR A PLASTIC MATERIAL PELLETIZER HAVING CONCENTRIC INTERFITTED INNER AND OUTER BODY PORTIONS WITH AN ANNULARLY ARRANGED PATTERN OF ORIFICE NOZZLES FORMED IN THE INNER BODY PORTION THROUGH WHICH PLASTIC MATERIAL IS EXTRUDED AND CUT INTO PELLETS, WITH HEATING PASSAGES ALSO FORMED IN THE INNER PORTION GENERALLY RADIALLY BETWEEN ROWS OF NOZZLES. THE HEATING PASSAGES OPEN INWARDLY INTO AN ANNULAR GROOVE FORMED IN THE FACE OF THE DIE PLATE INWARDLY OF THE NOZZLE PATTERN. AN ANNULAR INSERT IS RECEIVED WITHIN THE GROOVE AND FORMS TURN-AROUND CAVITIES FOR CONNECTING GROUPS OF SUCH HEATING PASSAGES WITH ADJACENT GROUPS OF PASSAGES.
Inventors
- 👤 Alfred P Romagano
- 👤 Arthur D Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:06
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/34; B01; B01J; B01J2/00; B01J2/20; B29; B29B; B29B9/00; B29B9/02; B29B9/06; B29B9/065; B30B11/00; B30B11/22; B30B11/221
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |