Patent US2671413A successfully refreshed from Google Patents.
Patent US3776796A successfully refreshed from Google Patents.
US3776796A
Expired / Lapsed
US
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Process and apparatus for production of a nonwoven web
Assignee: Honeywell International Inc
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Filing: 1971-09-28
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Granted: 1973-12-04
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Expires: 1991-09-28
Abstract
Abstract METHOD AND APPARATUS FOR PRODUCING A NONWOVEN WEB. CONTINUOUS POLYMER FILAMENT IS MELT SPUN, TREATED WITH A SUBSTANTIALLY PERMANENT ANTI-STATIC AGENT DRAWN UNIFORMLY ABOUT A SLOWLY ROTATING DRAW PIN, AND SPLAYED ONTO A CONVEYOR BY RECIPROCATION OF A SERIES OF AIR JET ASPIRATORS, EACH EMPLOYING AN ASPIRATING MEDIUM WHICH IS INTRODUCED INTO EACH ASPIRATOR AND FLOWS THROUGH EACH ASPIRATOR IN A DIRECTION SUBSTANTIALLY PARALLEL WITH THE ASPIRATOR AXIS, TO FORM A NONWOVEN WEB, WHICH IS THEREAFTER FUSION-BONDED BETWEEN ROLLS. FILAMENTS HAVING DIFFERENT PROPERTIES MAY BE USED.
Inventors
- 👤 W Lipscomb
- 👤 G Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:45
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |