Patent US3133313A successfully refreshed from Google Patents.
US3133313A
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Extrusion die mechanism
Assignee: Millennium Petrochemicals Inc
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Filing: 1962-10-30
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Granted: 1964-05-19
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Herbert O Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:25
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A DIE FOR EXTRUDING A THERMOPLASTIC WEB, AN ELONGATED UPPER DIE BODY AND AN ELONGATED LOWER DIE BODY DISPOSED IN SPACED RELATIONSHIP AND HAVING OPPOSED HORIZONTALLY DISPOSED FACES DEFINING AN EXTRUSION CHAMBER THEREBETWEEN; SAID UPPER AND LOWER DIE BODIES HAVING UPPER AND LOWER DIE LIPS, RESPECTIVELY, PROVIDING AN EXTRUSION ORIFICE; ONE OF SAID FACES BEING PROVIDED WITH A LONGITUDINALLY DISPOSED CHANNEL; A TRANSVERSELY DISPOSED ELONGATED BAR SLIDABLY RECEIVED IN SAID CHANNEL FOR RECIPROCATORY MOVEMENT; SAID BAR INCLUDING AN EXTENDING PORTION WHICH PROJECTS INTO SAID EXTRUSION CHAMBER; AND OPERATING MECHANISM FOR RECIPROCATING SAID EXTENDING PORTION TRANSVERSELY THROUGH THE PATH OF EXTRUDATE FLOWING THROUGH THE EXTRUSION CHAMBER TOWARD SAID EXTRUSION ORIFICE.
Claim 2
Dependent Claim
110 words
IN A DIE FOR EXTRUDING A THERMOPLASTIC WEB, AN ELONGATED UPPER DIE BODY AND AN ELONGATED LOWER DIE BODY DISPOSED IN SPACED RELATIONSHIP AND HAVING OPPOSED HORIZONTALLY DISPOSED FACES DEFINING AN EXTRUSION CHAMBER THEREBETWEEN; SAID UPPER AND LOWER DIE BODIES HAVING UPPER AND LOWER DIE LIPS, RESPECTIVELY, PROVIDING AN EXTRUSION ORIFICE; ONE OF SAID FACES BEING PROVIDED WITH A LONGITUDINALLY DISPOSED CHANNEL; A TRANSVERSELY DISPOSED ELONGATED BAR SLIDABLY RECEIVED IN SAID CHANNEL FOR RECIPROCATORY MOVEMENT; SAID BAR INCLUDING AN EXTENDING PORTION WHICH PROJECTS INTO SAID EXTRUSION CHAMBER; AND OPERATING MECHANISM FOR RECIPROCATING SAID EXTENDING PORTION TRANSVERSELY THROUGH THE PATH OF EXTRUDATE FLOWING THROUGH THE EXTRUSION CHAMBER TOWARD SAID EXTRUSION ORIFICE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |