Patent US3308503A successfully refreshed from Google Patents.
US3308503A
Expired / Lapsed
US
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Mixing device for spinnerettes
Assignee: Textile & Chemical Res Co
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Filing: 1964-03-17
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Granted: 1967-03-14
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Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 Fays Rene
- 👤 Settele Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:16
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10S425/00; Y10S425/049; Y10S425/217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
APPARATUS FOR SPINNING CRIMPED ARTIFICIAL OR SYNTHETIC FIBRES AND FILAMENTS COMPRISING TWO OR MORE JUXTAPOSED CONSTITUENTS WHICH ARE IDENTICALLY DISTRIBUTED OVER THE ENTIRE LENGTH OF THE FIBRES AND FILAMENTS SO AS TO IMPART THERETO A CONTINUOUSLY HETEROGENEOUS STRUCTURE IN THE LONGITUDINAL DIRECTION, SAID APPARATUS COMPRISING A STACK OF THIN DISCS FORMED WITH CIRCULAR CENTRAL PERFORATIONS OF INCREASING DIAMETER, SAID DISCS BEING SEPARATED FROM THE ONE ANOTHER BY ANNULAR PACKINGS SO THAT THE ASSEMBLY FROMS A SUCCESSION OF CHAMBERS, AND MEANS FEEDING EACH OF SAID CHAMBERS WITH A PREDETERMINED MATERIAL TO BE SPUN, THE SAID CHAMBERS DISCHARGING IN SUCCESSION THROUGH SAID CENTER PERFORATIONS SO AS TO FORM A COLUMN OF SAID MATERIAL CONSISTING OF A SUCCESSION OF THIN ANNULAR LAYERS ADAPTED TO BE FED TO A SPINNERET.
Claim 2
Dependent Claim
126 words
APPARATUS FOR SPINNING CRIMPED ARTIFICIAL OR SYNTHETIC FIBRES AND FILAMENTS COMPRISING TWO OR MORE JUXTAPOSED CONSTITUENTS WHICH ARE IDENTICALLY DISTRIBUTED OVER THE ENTIRE LENGTH OF THE FIBRES AND FILAMENTS SO AS TO IMPART THERETO A CONTINUOUSLY HETEROGENEOUS STRUCTURE IN THE LONGITUDINAL DIRECTION, SAID APPARATUS COMPRISING A STACK OF THIN DISCS FORMED WITH CIRCULAR CENTRAL PERFORATIONS OF INCREASING DIAMETER, SAID DISCS BEING SEPARATED FROM THE ONE ANOTHER BY ANNULAR PACKINGS SO THAT THE ASSEMBLY FROMS A SUCCESSION OF CHAMBERS, AND MEANS FEEDING EACH OF SAID CHAMBERS WITH A PREDETERMINED MATERIAL TO BE SPUN, THE SAID CHAMBERS DISCHARGING IN SUCCESSION THROUGH SAID CENTER PERFORATIONS SO AS TO FORM A COLUMN OF SAID MATERIAL CONSISTING OF A SUCCESSION OF THIN ANNULAR LAYERS ADAPTED TO BE FED TO A SPINNERET.
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |