Patent US3137895A successfully refreshed from Google Patents.
US3137895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating attachment for extruding apparatus
Assignee: A Hagedorn & Co AG
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Filing: 1962-01-03
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Granted: 1964-06-23
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Expires: 1982-01-03
Abstract
No abstract record available.
Inventors
- 👤 Kusch Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:58
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
109 words
A SPINNING ATTACHMENT FOR EXTRUDING APPARATUS IN THE MANUFACTURE OF RIBBONS, FOILS, SHEETS OR THE LIKE FROM HEAT-SENSITIVE VISCOUS SYNTHETIC RAW MATERIAL, COMPRISING IN COMBINATION A SUBSTANTIALLY CYLINDRICAL CHAMBER OPEN AT ONE END TO RECEIVE COMPRESSED RAW MATERIAL FROM THE EXTRUDING APPARATUS AND CLOSED AT THE OTHER END; AN ELONGATED SPINNING SLOT IN SAID CHAMBER EXTENDING IN AXIAL DIRECTION THEREOF; AND A WINDING ROD OR MANDREL ROTATABLY MOUNTED IN SAID CHAMBER AND SUBSTANTIALLY COEXTENDING LONGITUDINALLY THEREWITH, SAID WINDING ROD OR MANDREL WHILE ROTATING CAUSING THE SPINNING MASS TO WIND AROUND IN HELICAL LAYERS AND TO ENTER THE SPINNING SLOT UNIFORMLY AND CONTINUOUSLY UNDER THE PRESSURE PREVALILING IN THE CHAMBER.
Claim 2
Dependent Claim
109 words
A SPINNING ATTACHMENT FOR EXTRUDING APPARATUS IN THE MANUFACTURE OF RIBBONS, FOILS, SHEETS OR THE LIKE FROM HEAT-SENSITIVE VISCOUS SYNTHETIC RAW MATERIAL, COMPRISING IN COMBINATION A SUBSTANTIALLY CYLINDRICAL CHAMBER OPEN AT ONE END TO RECEIVE COMPRESSED RAW MATERIAL FROM THE EXTRUDING APPARATUS AND CLOSED AT THE OTHER END; AN ELONGATED SPINNING SLOT IN SAID CHAMBER EXTENDING IN AXIAL DIRECTION THEREOF; AND A WINDING ROD OR MANDREL ROTATABLY MOUNTED IN SAID CHAMBER AND SUBSTANTIALLY COEXTENDING LONGITUDINALLY THEREWITH, SAID WINDING ROD OR MANDREL WHILE ROTATING CAUSING THE SPINNING MASS TO WIND AROUND IN HELICAL LAYERS AND TO ENTER THE SPINNING SLOT UNIFORMLY AND CONTINUOUSLY UNDER THE PRESSURE PREVALILING IN THE CHAMBER.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |