US3082476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed for centripetal extruders
Assignee: AT&T Inc
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Filing: 1961-02-27
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Granted: 1963-03-26
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Tillman T Bunch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:45
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/47; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A CENTRIPETAL EXTRUDER FOR GRANULAR FEED MATERIAL COMPRISING PLATES WHICH DEFINE AN EXTRUSION PATH, MEANS FOR PRODUCING RELATIVE ROTATION BETWEEN SAID PLATES TO RENDER THE MATERIAL VISCO-ELASTIC AND FOR PRODUCING A FORCE TO MOVE SAID MATERIAL THROUGH SAID PATH, THEREBY FORMING IN A PORTION OF SAID PATH A CONGLOMERATE BALL OF GRANULAR FEED MATERIAL AND PARTIALLY VISCO-ELASTIC MATERIAL, AND SPIRALLY ARRANGED MEANS FIXED TO AT LEAST ONE OF THE PLATES AND PASSING THROUGH SAID PORTION OF SAID PATH WHERE THE CONGLOMERATE BALL IS FORMED FOR BREAKING SAID CONGLOMERATE BALL AND AUGMENTING SAID FORCE TO MOVE SAID VISCO-ELASTIC MATERIAL THROUGH SAID PATH.
Claim 2
Dependent Claim
101 words
A CENTRIPETAL EXTRUDER FOR GRANULAR FEED MATERIAL COMPRISING PLATES WHICH DEFINE AN EXTRUSION PATH, MEANS FOR PRODUCING RELATIVE ROTATION BETWEEN SAID PLATES TO RENDER THE MATERIAL VISCO-ELASTIC AND FOR PRODUCING A FORCE TO MOVE SAID MATERIAL THROUGH SAID PATH, THEREBY FORMING IN A PORTION OF SAID PATH A CONGLOMERATE BALL OF GRANULAR FEED MATERIAL AND PARTIALLY VISCO-ELASTIC MATERIAL, AND SPIRALLY ARRANGED MEANS FIXED TO AT LEAST ONE OF THE PLATES AND PASSING THROUGH SAID PORTION OF SAID PATH WHERE THE CONGLOMERATE BALL IS FORMED FOR BREAKING SAID CONGLOMERATE BALL AND AUGMENTING SAID FORCE TO MOVE SAID VISCO-ELASTIC MATERIAL THROUGH SAID PATH.
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |