US3098265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for doffing and drafting textile fibers
Assignee: Johnson and Johnson
•
Filing: 1960-02-19
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Granted: 1963-07-23
•
Expires: 1980-02-19
Abstract
No abstract record available.
Inventors
- 👤 Kalwaites Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:12
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A METHOD OF DOFFING A FIBROUS WEB FROM A ROTATABLE SURFACE AND SUBSTANTIALLY SIMULTANEOUSLY DRAFTING THE SAME WHICH COMPRISES: CARRYING A FIBROUS WEB ON A ROTATABLE SURFACE; TRANSFERRING SAID FIBROUS WEB FROM SAID ROTATABLE SURFACE TO A SECOND ROTATABLE SURFACE CLOSELY ADJACENT TO BUT SPACED FROM SAID FIRST-MENTIONED ROTATABLE SURFACE, SAID ROTATABLE SURFACES MOVING IN THE SAME DIRECTION AT THE POINT OF CLOSEST ADJACENCY WITH THE RATIO OF THE PERIPHERAL SURFACE LINEAR VELOCITY OF THE SECOND ROTATABLE SURFACE TO THAT OF THE FIRST-MENTIONED ROTATABLE SURFACE BEING IN THE RANGE OF FROM ABOUT 1 1/2:1 TO ABOUT 2 1/2:1, WHEREBY THE FIBROUS WEB IS DOFFED AND SUBSTANTIALLY SIMULTANEOUSLY DRAFTED TO BECOME PERMANENTLY MORE HIGHLY ORIENTED IN THE LONG DIRECTION AND TO HAVE ITS GRAIN WEIGHT PER SQUARE YARD PERMANENTLY REDUCED; AND PRESSING THE TRANSFERRED FIBROUS WEB AGAINST THE PERIPHERAL SURFACE OF THE SECOND ROTATABLE SURFACE AT A POINT RELATIVELY CLOSE TO THE POINT OF TRANSFER OF THE FIBROUS WEB FROM THE FIRST-MENTIONED ROTATABLE SURFACE TO THE SECOND ROTATABLE SURFACE TO ENABLE THE FIBROUS WEB TO BE DRAFTED DURING ITS TRANSFER FROM THE FIRSTMENTIONED ROTATABLE SURFACE AND TO PREVENT ITS RETURN THERETO.
Claim 2
Independent Claim
190 words
A METHOD OF DOFFING A FIBROUS WEB FROM A ROTATABLE SURFACE AND SUBSTANTIALLY SIMULTANEOUSLY DRAFTING THE SAME WHICH COMPRISES: CARRYING A FIBROUS WEB ON A ROTATABLE SURFACE; TRANSFERRING SAID FIBROUS WEB FROM SAID ROTATABLE SURFACE TO A SECOND ROTATABLE SURFACE CLOSELY ADJACENT TO BUT SPACED FROM SAID FIRST-MENTIONED ROTATABLE SURFACE, SAID ROTATABLE SURFACES MOVING IN THE SAME DIRECTION AT THE POINT OF CLOSEST ADJACENCY WITH THE RATIO OF THE PERIPHERAL SURFACE LINEAR VELOCITY OF THE SECOND ROTATABLE SURFACE TO THAT OF THE FIRST-MENTIONED ROTATABLE SURFACE BEING IN THE RANGE OF FROM ABOUT 1 1/2:1 TO ABOUT 2 1/2:1, WHEREBY THE FIBROUS WEB IS DOFFED AND SUBSTANTIALLY SIMULTANEOUSLY DRAFTED TO BECOME PERMANENTLY MORE HIGHLY ORIENTED IN THE LONG DIRECTION AND TO HAVE ITS GRAIN WEIGHT PER SQUARE YARD PERMANENTLY REDUCED; AND PRESSING THE TRANSFERRED FIBROUS WEB AGAINST THE PERIPHERAL SURFACE OF THE SECOND ROTATABLE SURFACE AT A POINT RELATIVELY CLOSE TO THE POINT OF TRANSFER OF THE FIBROUS WEB FROM THE FIRST-MENTIONED ROTATABLE SURFACE TO THE SECOND ROTATABLE SURFACE TO ENABLE THE FIBROUS WEB TO BE DRAFTED DURING ITS TRANSFER FROM THE FIRSTMENTIONED ROTATABLE SURFACE AND TO PREVENT ITS RETURN THERETO.
References Cited (Backward Citations)
US46120A
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US166578A
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US206510A
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US2097992A
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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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |