US3087203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of manufacturing composite webs from tow
Assignee: Crompton and Knowles Corp
•
Filing: 1961-01-30
•
Granted: 1963-04-30
•
Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Lincoln E Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:42
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF CONVERTING FILAMENTS OF SYNTHETIC MATERIAL IN TOW FORM INTO A NONWOVEN WEB INCLUDING THE FOLLOWING STEPS: FEEDING A TOW OF ONE TYPE OF FILAMENTS THROUGH TWO OPERATING STATIONS IN EACH OF WHICH SOME OF THE FILAMENTS ARE BROKEN OFF TO FORM FIBERS, AND FEEDING ANOTHER TOW OF A DIFFERENT TYPE OF FILAMENTS TO ONE ONLY OF SAID STATIONS TO BREAK THE FILAMENTS THEREOF INTO FIBERS, AND COLLECTING THE FIBERS FORMED FROM BOTH TOWS ONTO A MOVING CONVEYOR TO PROVIDE A COMPOSITE NONWOVEN WEB CONTAINING FIBERS OF TWO DIFFERENT TYPES.
Claim 2
Independent Claim
92 words
THE METHOD OF CONVERTING FILAMENTS OF SYNTHETIC MATERIAL IN TOW FORM INTO A NONWOVEN WEB INCLUDING THE FOLLOWING STEPS: FEEDING A TOW OF ONE TYPE OF FILAMENTS THROUGH TWO OPERATING STATIONS IN EACH OF WHICH SOME OF THE FILAMENTS ARE BROKEN OFF TO FORM FIBERS, AND FEEDING ANOTHER TOW OF A DIFFERENT TYPE OF FILAMENTS TO ONE ONLY OF SAID STATIONS TO BREAK THE FILAMENTS THEREOF INTO FIBERS, AND COLLECTING THE FIBERS FORMED FROM BOTH TOWS ONTO A MOVING CONVEYOR TO PROVIDE A COMPOSITE NONWOVEN WEB CONTAINING FIBERS OF TWO DIFFERENT TYPES.
References Cited (Backward Citations)
US762264A
Cited
US1572148A
Cited
US1657980A
Cited
US2033979A
Cited
US2067062A
Cited
US2419320A
Cited
DE890411C
Cited
US2884681A
Cited
US2845661A
Cited
US2878526A
Cited
GB841098A
Cited
US3071821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |