US2611923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the drawing of synthetic funicular structures
Assignee: EIDP Inc
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Filing: 1949-08-31
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Granted: 1952-09-30
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Expires: 1969-08-31
Abstract
No abstract record available.
Inventors
- 👤 Hume Harold Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:08
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/228; Y; Y10; Y10S; Y10S264/00; Y10S264/73; Y10S425/00; Y10S425/017; Y10S8/00; Y10S8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
APPARATUS FOR THE TWO STAGES OF DRAWING AND HEAT-TREATING HEAT-STRETCHABLE YARNS AND LIKE STRUCTURE OF SYNTHETIC FILAMENT-FORMING MATERIAL ON A SINGLE HEATED ROLL COMPRISING IN COMBINATION A POSITIVELY DRIVEN UNHEATED YARN FEED ROLL DRIVEN AT A PREDETERMINED SPEED, A HEATED DRAW ROLL IN THE PATH OF TRAVEL OF YARN FROM THE FEED ROLL AND DRIVEN AT AN INCREASED SPEED SUFFICIENT TO MAINTAIN YARN BETWEEN SAID SAID FEED ROLL AND SAID HEATED DRAW ROLL UNDER DRAWING TENSION, AND A POSITIVELY DRIVEN COLD ROLL IN THE PATH OF TRAVEL OF YARN FROM SAID HEATED ROLL, ADAPTED TO MAINTAIN YARN BETWEEN SAID HEATED ROLL AND SAID COLD ROLL AT A PREDETERMINED TENSION.
Claim 2
Dependent Claim
109 words
APPARATUS FOR THE TWO STAGES OF DRAWING AND HEAT-TREATING HEAT-STRETCHABLE YARNS AND LIKE STRUCTURE OF SYNTHETIC FILAMENT-FORMING MATERIAL ON A SINGLE HEATED ROLL COMPRISING IN COMBINATION A POSITIVELY DRIVEN UNHEATED YARN FEED ROLL DRIVEN AT A PREDETERMINED SPEED, A HEATED DRAW ROLL IN THE PATH OF TRAVEL OF YARN FROM THE FEED ROLL AND DRIVEN AT AN INCREASED SPEED SUFFICIENT TO MAINTAIN YARN BETWEEN SAID SAID FEED ROLL AND SAID HEATED DRAW ROLL UNDER DRAWING TENSION, AND A POSITIVELY DRIVEN COLD ROLL IN THE PATH OF TRAVEL OF YARN FROM SAID HEATED ROLL, ADAPTED TO MAINTAIN YARN BETWEEN SAID HEATED ROLL AND SAID COLD ROLL AT A PREDETERMINED TENSION.
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) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |