Patent US4609910A successfully refreshed from Google Patents.
US3553774A
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Spinning head for spinning bicomponent filaments
Assignee: JP Bemberg AG
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Filing: 1968-08-23
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Granted: 1971-01-12
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Expires: 1988-08-23
Abstract
Abstract AN IMPROVED CONSTRUCTION IN THE DISTRIBUTION SYSTEM OF A SPINNING HEAD FOR PRODUCING BICOMPONENT FILAMENTS FROM TWO DISTINCT FLUID SPINNING COMPOSITIONS BROUGHT TOGETHER FOR EXTRUSION ON EITHER SIDE OF A THIN KNIFE EDGE INTERSECTING EACH SPINNING OPENING OF A MULTI-HOLED NOZZLE PLATE MOUNTED ON THE FACE THE SPINNING HEAD. THE ELEMENTS OF THE DISTRIBUTION SYSTEM ESSENTIALLY INCLUDE A SLOTTED DISTRIBUTOR PLATE WITH SEPARATE RADIAL CHANNELS AND A CONICALLY-SHAPED INSERT HAVING ALTERNATE INNER AND OUTER RADIAL SLOTS IN FLUID CONNECTION WITH SEPARATE FEED MEANS ON THE INLET SIDE AND WITH THE RADIAL CHANNELS OF THE DISTRIBUTOR PLATE ON THE OUTLET SIDE.
Inventors
- 👤 Heinz Ruck
- 👤 Gustav Dunweg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:31
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/06; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/25; B29C48/30; B29C48/345; Y; Y10; Y10S; Y10S425/00; Y10S425/217
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |