US3070836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for automatic control of an extruder
Assignee: Phillips Petroleum Co
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Filing: 1959-07-09
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Granted: 1963-01-01
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Expires: 1979-07-09
Abstract
No abstract record available.
Inventors
- 👤 Haven Clark G De
- 👤 Donald E Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:43
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/68; B29C48/685; B29C48/686; B29C48/505; B29C48/55; B29C48/63; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92019; B29C2948/92047; B29C2948/92076; B29C2948/92114; B29C2948/92209; B29C2948/92314; B29C2948/92504; B29C2948/92514; B29C2948/92571; B29C2948/92704; B29C2948/92819; B29C2948/92857; B29C2948/92876; B29C2948/92895; B29C2948/92904; B29C2948/92952; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF CONTROLLING THE PRODUCING OF AN EXTRUDATE WHEREIN A MATERIAL IS FED THROUGH A FEEDING ZONE WHEREIN IT IS MASTICATED, PLASTICIZED AND SUBJECTED TO AN INCREASING PRESSURE AS IT PASSES THERETHROUGH, IS FORCED OUT OF SAID FEEDING ZONE THROUGH A FIRST CONSTRICTION TO A LOW PRESSURE MILLING ZONE, IS DELIVERED FROM SAID MILLING ZONE TO AN EXTRUSION ZONE; AND IS FORCED OUT OF SAID EXTRUSION ZONE THROUGH A SECOND CONSTRICTION; SAID CONTROL METHOD COMPRISING MEASURING THE POWER CONSUMED IN PASSING THE MATERIAL THROUGH SAID FEEDING ZONE, FIRST
Claim 2
Independent Claim
89 words
A METHOD OF CONTROLLING THE PRODUCING OF AN EXTRUDATE WHEREIN A MATERIAL IS FED THROUGH A FEEDING ZONE WHEREIN IT IS MASTICATED, PLASTICIZED AND SUBJECTED TO AN INCREASING PRESSURE AS IT PASSES THERETHROUGH, IS FORCED OUT OF SAID FEEDING ZONE THROUGH A FIRST CONSTRICTION TO A LOW PRESSURE MILLING ZONE, IS DELIVERED FROM SAID MILLING ZONE TO AN EXTRUSION ZONE; AND IS FORCED OUT OF SAID EXTRUSION ZONE THROUGH A SECOND CONSTRICTION; SAID CONTROL METHOD COMPRISING MEASURING THE POWER CONSUMED IN PASSING THE MATERIAL THROUGH SAID FEEDING ZONE, FIRST
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |