US2837102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for incorporating coloring matter in spinning solutions
Assignee: Industrial Rayon Corp
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Filing: 1954-12-20
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Granted: 1958-06-03
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Expires: 1974-12-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Bauer
- 👤 Kenneth M Mclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:52
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/06; D01D1/065; B; B01; B01F; B01F35/00; B01F35/80; B01F35/83; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0352; Y10T137/2496; Y10T137/2514; Y10T137/2703
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
METHOD FOR DIRECTLY FOR INCORPORATING A METERING GEAR PUMP FED LIQUID PIGMENT COMPOSITION INTO A SPINNING SOLUTION UNDER PRESSURE FOR SUBSEQUENT EXTRUSION INTO COLORED YARN AND LIKE PRODUCTS COMPRISING, OVERFEEDING THE LIQUID PIGMENT COMPOSITION TO A POINT IN A CONDUIT PREDETERMINING THE AMOUNT TO BE INJECTED INTO A FLOWING SPINNING SOLUTION UNDER PRESSURE, INJECTING A PREDETERMINED AMOUNT OF SAID LIQUID PIGMENT COMPOSITION INTO SAID SPINNING SOLUTION AT SAID POINT, AND BY-PASSING THE OVERFED LIQUID PIGMENT COMPOSITION THROUGH A CONSTRICTABLE PASSAGEWAY BEING DIRECTLY RESPONSIVE TO VARYING PRESSURE OF FLOWING SPINNING SOLUTION WHEREBY THE FLOW OF SAID BY-PASSED LIQUID PIGMENT COMPOSITION
Claim 2
Dependent Claim
99 words
METHOD FOR DIRECTLY FOR INCORPORATING A METERING GEAR PUMP FED LIQUID PIGMENT COMPOSITION INTO A SPINNING SOLUTION UNDER PRESSURE FOR SUBSEQUENT EXTRUSION INTO COLORED YARN AND LIKE PRODUCTS COMPRISING, OVERFEEDING THE LIQUID PIGMENT COMPOSITION TO A POINT IN A CONDUIT PREDETERMINING THE AMOUNT TO BE INJECTED INTO A FLOWING SPINNING SOLUTION UNDER PRESSURE, INJECTING A PREDETERMINED AMOUNT OF SAID LIQUID PIGMENT COMPOSITION INTO SAID SPINNING SOLUTION AT SAID POINT, AND BY-PASSING THE OVERFED LIQUID PIGMENT COMPOSITION THROUGH A CONSTRICTABLE PASSAGEWAY BEING DIRECTLY RESPONSIVE TO VARYING PRESSURE OF FLOWING SPINNING SOLUTION WHEREBY THE FLOW OF SAID BY-PASSED LIQUID PIGMENT COMPOSITION
References Cited (Backward Citations)
US2598307A
Cited
US2677390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |