US2510135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for spinning artificial filaments
Assignee: Akzo Nobel UK PLC
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Filing: 1947-08-25
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Granted: 1950-06-06
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Expires: 1967-08-25
Abstract
No abstract record available.
Inventors
- 👤 Pedlow John Watson
- 👤 Wesley L Webb
- 👤 Ingham S Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06; Y; Y10; Y10S; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
THE METHOD OF PRODUCING ARTIFICIAL FILAMENTS COMPRISING CONTINUOUSLY EXTRUDING A FILAMENTFORMING MATERIAL THROUGH THE ORIFICES OF A SPINNERET INTO A STREAM OF COAGULATING LIQUID FLOWING IN THE GENERAL DIRECTION OF EXTRUSION, DIRECTING THE FILAMENT-FORMING STEAMS OF MATERIAL IN A STRAIGHT PATH AS THEY PROCEED FROM THE SPINNERET AND ARE COAGULATED TO FILAMENTS IN THE COAGULATING LIQUID STREAM, IMPARTING A PREDETERMINED CONSTANT VELOCITY TO THE FLAMENTS AS THEY PROCEED IN SAID STRAIGHT PATH, FORMING THE COAGULATING LIQUID STREAM AT A POINT WITHIN A DISTANCE OF ABOUT 10 CENTIMETERS IN FRONT OF THE SPINNERET INTO A JET HAVING SUBSTANTIALLY THE SAME VELOCITY AS THE FILAMENTS AND FLOWING IN FREE FLIGHT THROUGH THE AIR ALONG THE STRAIGHT PATH OF THE FILAMENTS, CONTROLLING THE AMOUNT OF LIQUID IN THE JET TO ASSURE THAT ALL OF THE LIQUID ADHERES TO AND TRAVELS SUBSTANTIALLY AT THE SAME VELOCITY AS THE FILAMENTS THROUGHOUT SAID STRAIGHT PATH, AND THEN CONTINUOUSLY REMOVING LIQUID FROM THE FILAMENTS IN A UNIFORMLY CONTROLLED MANNER AT A PREDETERMINED POINT OF THE STRAIGHT PATH.
Claim 2
Independent Claim
170 words
THE METHOD OF PRODUCING ARTIFICIAL FILAMENTS COMPRISING CONTINUOUSLY EXTRUDING A FILAMENTFORMING MATERIAL THROUGH THE ORIFICES OF A SPINNERET INTO A STREAM OF COAGULATING LIQUID FLOWING IN THE GENERAL DIRECTION OF EXTRUSION, DIRECTING THE FILAMENT-FORMING STEAMS OF MATERIAL IN A STRAIGHT PATH AS THEY PROCEED FROM THE SPINNERET AND ARE COAGULATED TO FILAMENTS IN THE COAGULATING LIQUID STREAM, IMPARTING A PREDETERMINED CONSTANT VELOCITY TO THE FLAMENTS AS THEY PROCEED IN SAID STRAIGHT PATH, FORMING THE COAGULATING LIQUID STREAM AT A POINT WITHIN A DISTANCE OF ABOUT 10 CENTIMETERS IN FRONT OF THE SPINNERET INTO A JET HAVING SUBSTANTIALLY THE SAME VELOCITY AS THE FILAMENTS AND FLOWING IN FREE FLIGHT THROUGH THE AIR ALONG THE STRAIGHT PATH OF THE FILAMENTS, CONTROLLING THE AMOUNT OF LIQUID IN THE JET TO ASSURE THAT ALL OF THE LIQUID ADHERES TO AND TRAVELS SUBSTANTIALLY AT THE SAME VELOCITY AS THE FILAMENTS THROUGHOUT SAID STRAIGHT PATH, AND THEN CONTINUOUSLY REMOVING LIQUID FROM THE FILAMENTS IN A UNIFORMLY CONTROLLED MANNER AT A PREDETERMINED POINT OF THE STRAIGHT PATH.
References Cited (Backward Citations)
US1493545A
Cited
GB394049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |