US2786736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for treating filamentary material
Assignee: Celanese Corp
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Filing: 1953-01-27
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Granted: 1957-03-26
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Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Robert H Roughsedge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:41
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/04; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0472
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
AN APPARATUS FOR THE TREATMENT OF FILAMENTARY MATERIALS, COMPRISING AN ENDLESS FLEXIBLE BELT FOR SUPPORTING THE FILAMENTARY MATERIALS DURING THE TREATMENT, A PLURALITY OF UPPER ROLLS AND A PLURALITY OF LOWER ROLLS PARALLEL TO SAID UPPER ROLLS, A CONTAINER FOR A LIQUID TREATING BATH, MEANS FOR SUPPLYING A LIQUID TO SSAID BATH, SAID BELT BEING TRAINED UP AND DOWN IN A ZIG-ZAG PATH THROUGH SAID BATH, OVER SAID UPPER ROLLS AND UNDER SAID LOWER ROLLS, SAID BELT BEING TWISTED THROUGH AN ANGLE OF 180 DEGREES IN ITS UPWARD AND DOWNWARD PASSAGES BETWEEN THE UPPER ROLLS AND THE LOWER ROLLS WHEREBY THE FILAMENTARY MATERIALS WILL BE CARRIED AROUND THE UPPER ROLLS AND THE LOWER ROLLS ON THE OUTSIDE OF THE BELT AND WILL NOT CONTACT THE ROLLS, SAID LOWER ROLLS BEING DIRECTLY BENEATH SAID UPPER ROLLS THEREBY PROVIDING FOR A SUBSTANTIALLY VERTICAL COURSE OF TRAVEL OF THE BELT AND FILAMENTARY MATERI
Claim 2
Independent Claim
150 words
AN APPARATUS FOR THE TREATMENT OF FILAMENTARY MATERIALS, COMPRISING AN ENDLESS FLEXIBLE BELT FOR SUPPORTING THE FILAMENTARY MATERIALS DURING THE TREATMENT, A PLURALITY OF UPPER ROLLS AND A PLURALITY OF LOWER ROLLS PARALLEL TO SAID UPPER ROLLS, A CONTAINER FOR A LIQUID TREATING BATH, MEANS FOR SUPPLYING A LIQUID TO SSAID BATH, SAID BELT BEING TRAINED UP AND DOWN IN A ZIG-ZAG PATH THROUGH SAID BATH, OVER SAID UPPER ROLLS AND UNDER SAID LOWER ROLLS, SAID BELT BEING TWISTED THROUGH AN ANGLE OF 180 DEGREES IN ITS UPWARD AND DOWNWARD PASSAGES BETWEEN THE UPPER ROLLS AND THE LOWER ROLLS WHEREBY THE FILAMENTARY MATERIALS WILL BE CARRIED AROUND THE UPPER ROLLS AND THE LOWER ROLLS ON THE OUTSIDE OF THE BELT AND WILL NOT CONTACT THE ROLLS, SAID LOWER ROLLS BEING DIRECTLY BENEATH SAID UPPER ROLLS THEREBY PROVIDING FOR A SUBSTANTIALLY VERTICAL COURSE OF TRAVEL OF THE BELT AND FILAMENTARY MATERI
Claim 3
Dependent Claim
163 words
IN A PROCESS FOR THE TREATMENT OF FILMENTARY MATERALS, THE STEPS WHICH COMPRISES SUPPORTING SAID FILAMENTARY MATERIALS ON AN ENDLESS FLEXIBLE BELT, WHICH BELT IS TRAINED ZIG-ZAG OVER A PLURALITY OF UPPER ROLLS AND UNDER A PLURALITY OF LOWER ROLLS PARALLEL TO SAID UPPER ROLLS AND WHICH BELT TRAVELS UPWARDLY AND DOWNWARDLY THROUGH A LIQUID TREATING BATH DURING ITS PASSAGES BETWEEN SAID ROLLS AND IS TWISTED THROUGH AN ANGLE OF 180 DEGREES IN ITS UPWARD AND DOWNWARD PASSAGES BETWEEN SAID ROLLS WHEREBY THE FILAMENTARY MATERIALS WILL BE CARRIED AROUND THE UPPER ROLLS AND THE LOWER ON THE OUTSIDE OF THE BELT AND WILL NOT CONTACT THE ROLLS, ADN APPLYING A FORCE TO DRIVE AT LEAST SOME OF SAID ROLLS TO MOVE THE BELT THROUGH THE TREATMENT APPARATUS WHEREBY THE BELT WILL CARRY THE FILAMENTARY MATERIALS THROUGH THE TREATMENT APPARATUS, SAID LOWER ROLLS, BEING DIRECTLY BENEATH SAID UPPER ROLLS THEREBY PROVIDING FOR A SUBSTANTIALLY VERTICAL COURSE OF TRAVEL OF THE BELT AND FILAMENTARY MATERIALS.
Claim 4
Dependent Claim
163 words
IN A PROCESS FOR THE TREATMENT OF FILMENTARY MATERALS, THE STEPS WHICH COMPRISES SUPPORTING SAID FILAMENTARY MATERIALS ON AN ENDLESS FLEXIBLE BELT, WHICH BELT IS TRAINED ZIG-ZAG OVER A PLURALITY OF UPPER ROLLS AND UNDER A PLURALITY OF LOWER ROLLS PARALLEL TO SAID UPPER ROLLS AND WHICH BELT TRAVELS UPWARDLY AND DOWNWARDLY THROUGH A LIQUID TREATING BATH DURING ITS PASSAGES BETWEEN SAID ROLLS AND IS TWISTED THROUGH AN ANGLE OF 180 DEGREES IN ITS UPWARD AND DOWNWARD PASSAGES BETWEEN SAID ROLLS WHEREBY THE FILAMENTARY MATERIALS WILL BE CARRIED AROUND THE UPPER ROLLS AND THE LOWER ON THE OUTSIDE OF THE BELT AND WILL NOT CONTACT THE ROLLS, ADN APPLYING A FORCE TO DRIVE AT LEAST SOME OF SAID ROLLS TO MOVE THE BELT THROUGH THE TREATMENT APPARATUS WHEREBY THE BELT WILL CARRY THE FILAMENTARY MATERIALS THROUGH THE TREATMENT APPARATUS, SAID LOWER ROLLS, BEING DIRECTLY BENEATH SAID UPPER ROLLS THEREBY PROVIDING FOR A SUBSTANTIALLY VERTICAL COURSE OF TRAVEL OF THE BELT AND FILAMENTARY MATERIALS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |