US2953427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of artificial filamentary materials
Assignee: Viscosuisse SA
•
Filing: 1958-02-21
•
Granted: 1960-09-20
•
Expires: 1978-02-21
Abstract
No abstract record available.
Inventors
- 👤 Egger George Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:51
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
PROCESS FOR THE MANUFACTURE OF ARTIFICIAL FILAMENTARY MATERIALS HAVING KNOPS BY MELT SPINNING WHICH COMPRISES EXTRUDING THE MOLTEN FILAMENT-FORMING MATERIAL THROUGH SPINNING ORIFICES, DRAWING THE EXTRUDED MATERIAL IN THE FORM OF FILAMENTS AWAY FROM THE ORIFICES THROUGH A ZONE IN WHICH IT IS SOLIDIFIED BY COOLING AND, BEFORE THE FILAMENTS ARE COMPLETELY SOLIDIFIED AND WHILE THEY ARE STILL SPACED APART, DIRECTING LIQUID COOLANT AT SUBSTANTIALLY ATMOSPHERIC TEMPERATURE IN PATHS WHICH MOVE TRANSVERSELY TO AND THUS INTERSECT THE PATHS OF THE FILAMENTS, SO AS TO CAUSE A SUDDEN LIQUID COOLING OF THE FILAMENTS OVER SHORT IRREGULARLY SPACED LENGTHS THEREOF AND, UNDER THE ACTION OF THE DRAWING OPERATION, FORMATION OF THICKNED PLACES AT THE IRREGULARLY SPACED PLACES WHERE THE LIQUID IMPINGED ON THE FILAMENTS.
Claim 2
Dependent Claim
122 words
PROCESS FOR THE MANUFACTURE OF ARTIFICIAL FILAMENTARY MATERIALS HAVING KNOPS BY MELT SPINNING WHICH COMPRISES EXTRUDING THE MOLTEN FILAMENT-FORMING MATERIAL THROUGH SPINNING ORIFICES, DRAWING THE EXTRUDED MATERIAL IN THE FORM OF FILAMENTS AWAY FROM THE ORIFICES THROUGH A ZONE IN WHICH IT IS SOLIDIFIED BY COOLING AND, BEFORE THE FILAMENTS ARE COMPLETELY SOLIDIFIED AND WHILE THEY ARE STILL SPACED APART, DIRECTING LIQUID COOLANT AT SUBSTANTIALLY ATMOSPHERIC TEMPERATURE IN PATHS WHICH MOVE TRANSVERSELY TO AND THUS INTERSECT THE PATHS OF THE FILAMENTS, SO AS TO CAUSE A SUDDEN LIQUID COOLING OF THE FILAMENTS OVER SHORT IRREGULARLY SPACED LENGTHS THEREOF AND, UNDER THE ACTION OF THE DRAWING OPERATION, FORMATION OF THICKNED PLACES AT THE IRREGULARLY SPACED PLACES WHERE THE LIQUID IMPINGED ON THE FILAMENTS.
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |