Patent US3303530A successfully refreshed from Google Patents.
US3303530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerette
Assignee: EIDP Inc
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Filing: 1965-01-13
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Granted: 1967-02-14
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Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Jr James Stanley Cobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:05
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A SPINNERETTE PLATE HAVING AT LEAST ONE CONVERGENT NOZZLE EXTENDING THERETHROUGH TO AN ORIFICE IN THE FORM OF ANGULARLY DISPOSED, INTERCONNECTED SLOTS IN THE DISCHARGE FACE, SAID NOZZLE TERMINATING IN A CAPILLARY SECTION DEFINED BY PLANAR WALLS SUBSTANTIALLY NORMAL TO THE DISCHARGE FACE AND EXTENDING FROM SAID CAPILLARY SECTION IN FIRST AND SECOND ADJOINING, INTERSECTING, DIVERGENT SECTIONS, SAID FIRST DIVERGENT SECTION HAVING AN ANGLE OF DIVERGENCE LESS THAN THAT OF SAID SECOND SECTION AND BEING DEFINED BY UNINTERRUPTED PLANAR SURFACES EACH DIVERGING FROM ONE OF SAID WALLS, THE LATTER BEING OF EQUAL HEIGHT THROUGH THE PERIPHERY OF SAID CAPILLARY SECTION.
Claim 2
Dependent Claim
100 words
A SPINNERETTE PLATE HAVING AT LEAST ONE CONVERGENT NOZZLE EXTENDING THERETHROUGH TO AN ORIFICE IN THE FORM OF ANGULARLY DISPOSED, INTERCONNECTED SLOTS IN THE DISCHARGE FACE, SAID NOZZLE TERMINATING IN A CAPILLARY SECTION DEFINED BY PLANAR WALLS SUBSTANTIALLY NORMAL TO THE DISCHARGE FACE AND EXTENDING FROM SAID CAPILLARY SECTION IN FIRST AND SECOND ADJOINING, INTERSECTING, DIVERGENT SECTIONS, SAID FIRST DIVERGENT SECTION HAVING AN ANGLE OF DIVERGENCE LESS THAN THAT OF SAID SECOND SECTION AND BEING DEFINED BY UNINTERRUPTED PLANAR SURFACES EACH DIVERGING FROM ONE OF SAID WALLS, THE LATTER BEING OF EQUAL HEIGHT THROUGH THE PERIPHERY OF SAID CAPILLARY SECTION.
References Cited (Backward Citations)
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Cited
US1245898A
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US2294894A
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US2742667A
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US3006026A
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US3017686A
Cited
US3001230A
Cited
US3210451A
Cited
US3095607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |