Patent US3238089A successfully refreshed from Google Patents.
US3124632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phocess for treating nylon
Assignee: —
•
Filing: —
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Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:17
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/228; D01; D01F; D01F6/00; D01F6/58; D01F6/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A PROCESS FOR TREATING NYLON FILAMENTS COMPRISING THE STEPS OF LONGITUDINALLY FEEDING NYLON FILAMENTS CAPABLE OF BEING MOLECULARLY ORIENTED TO A FIRST STRETCH ZONE AT A PREDETERMINED RATE, WITHDRAWING THE SAID FILAMENTS FROM SAID FIRST ZONE AT A PREDETERMINED INCREASED RATE, WHEREBY THE FILAMENTS ARE ATTENUATED THEREIN, SNUBBING THE MOVEMENT OF SAID FILAMENTS THROUGH THE SAID FIRST ZONE SO THAT THERE IS A TENDENCY OF THE POINT OF THE NECKING DOWN OF THE FILAMENTS TO BE LOCALIZED, PASSING THE SAID FILAMENTS THROUGH A SECOND STRETCH ZONE AND WITHDRAWING SAME THEREFROM AT A PREDETERMINED INCREASED RATE, WHEREBY THE FILAMENTS ARE STRETCHED A SECOND TIME, SNUBBING THE MOVEMENT OF SAID FILAMENTS THROUGH THE SAID SECOND ZONE AND HEATING THE FILAMENTS AT THE SAME TIME, THE OVERALL DRAW RATIO EMPLOYED BEING ABOUT 2.5-5.5 AND THE DRAW RATIO EMPLOYED IN THE SECOND STRETCH ZONE BEING ABOUT 1.2-1.9, HEATING THE YARN UNDER LOW TENSION PERMITTING THE YARN TO SHRINK ABOUT 6-10 PERCENT, AND TAKING THE FILAMENTS UP IN AN ORDERLY MANNER.
Claim 2
Dependent Claim
166 words
A PROCESS FOR TREATING NYLON FILAMENTS COMPRISING THE STEPS OF LONGITUDINALLY FEEDING NYLON FILAMENTS CAPABLE OF BEING MOLECULARLY ORIENTED TO A FIRST STRETCH ZONE AT A PREDETERMINED RATE, WITHDRAWING THE SAID FILAMENTS FROM SAID FIRST ZONE AT A PREDETERMINED INCREASED RATE, WHEREBY THE FILAMENTS ARE ATTENUATED THEREIN, SNUBBING THE MOVEMENT OF SAID FILAMENTS THROUGH THE SAID FIRST ZONE SO THAT THERE IS A TENDENCY OF THE POINT OF THE NECKING DOWN OF THE FILAMENTS TO BE LOCALIZED, PASSING THE SAID FILAMENTS THROUGH A SECOND STRETCH ZONE AND WITHDRAWING SAME THEREFROM AT A PREDETERMINED INCREASED RATE, WHEREBY THE FILAMENTS ARE STRETCHED A SECOND TIME, SNUBBING THE MOVEMENT OF SAID FILAMENTS THROUGH THE SAID SECOND ZONE AND HEATING THE FILAMENTS AT THE SAME TIME, THE OVERALL DRAW RATIO EMPLOYED BEING ABOUT 2.5-5.5 AND THE DRAW RATIO EMPLOYED IN THE SECOND STRETCH ZONE BEING ABOUT 1.2-1.9, HEATING THE YARN UNDER LOW TENSION PERMITTING THE YARN TO SHRINK ABOUT 6-10 PERCENT, AND TAKING THE FILAMENTS UP IN AN ORDERLY MANNER.
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |