Patent US3567288A successfully refreshed from Google Patents.
US3567288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic fiber conveying system
Assignee: Curlator Corp
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Filing: 1969-02-03
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Granted: 1971-03-02
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Expires: 1989-02-03
Abstract
Abstract AN AIR JET IS USED TO DIVERT FIBERS AND AIR FROM A TRUNKLINE INTO A BRANCH LINE TO FEED THE FIBERS TO A CARD OR A MACHINE FOR FORMING RANDOM FIBER WEBS, ETC. THE BRANCH LINE MAY CARRY THE AIR AND FIBERS THROUGH A TRUMPET SECTION TO A MOVING FORAMINOUS CONDENSER ON WHICH THE FIBERS WILL BE DEPOSITED WHILE THE AIR IS SUCKED BY A FAN THROUGH THE CONDENSER AND RETURNED TO THE TRUNKLINE TO FORM THE AIR JET. THUS, THE AMOUNT OF FIBERS AT ANY ONE TIME IN THE TRUMPET SECTION WILL CONTROL THE SUPPLY OF FIBERS TO THE BRANCH LINE. THE TRUNKLINE MAY BE OF INCREASED DIAMETER JUST UPSTREAM OF A BRANCH LINE TO HELP CONTROL THE DIRECTION OF FLOW OF THE FIBERS.
Inventors
- 👤 Dennis E Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
D; D01; D01G; D01G23/00; D01G23/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |