US3328003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the generation of a plurality of layers in a flowing stream
Assignee: Dow Chemical Co
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Filing: 1965-02-09
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Granted: 1967-06-27
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Expires: 1985-02-09
Abstract
No abstract record available.
Inventors
- 👤 Douglas S Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:25
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/16; B29C48/18; B29C48/21; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/432; B01F25/4321; B29C48/25; B29C48/30; B29C48/305; B29C48/307; B29C48/03; B29C48/07; B29C48/08; Y; Y10; Y10S; Y10S425/00; Y10S425/049
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A PROCESS FOR MIXING AT LEAST TWO STREAMS OF FLOWING MATERIALS COMPRISING THE STEPS OF COMBINING THE STREAMS INTO A SINGLE MAIN STREAM, DIVIDING THE MAIN STREAM INTO A PLURALITY OF PARTIAL STREAMS, EACH HAVING MAJOR AND MINOR AXIS IN CROSS SECTION, AND DISPLACING AT LEAST ONE PARTIAL STREAM WITH RESPECT TO AN ADJACENT PARTIAL STREAM WHILE ALTERING THE CROSS SECTIONAL SHAPE SO AS TO REVERSE THE MAJOR AND MINOR AXES THEREOF, AND RECOMBINING THE PARTIAL STREAMS, THE IMPROVEMENT WHICH COMPRISES MAINTAINING THE CROSS SECTIONAL AREA OF EACH OF THE PARTIAL STREAMS CONSTANT DURING DISPLACEMENT AND ALTERATION OF CROSS SECTIONAL SHAPE.
Claim 2
Dependent Claim
102 words
IN A PROCESS FOR MIXING AT LEAST TWO STREAMS OF FLOWING MATERIALS COMPRISING THE STEPS OF COMBINING THE STREAMS INTO A SINGLE MAIN STREAM, DIVIDING THE MAIN STREAM INTO A PLURALITY OF PARTIAL STREAMS, EACH HAVING MAJOR AND MINOR AXIS IN CROSS SECTION, AND DISPLACING AT LEAST ONE PARTIAL STREAM WITH RESPECT TO AN ADJACENT PARTIAL STREAM WHILE ALTERING THE CROSS SECTIONAL SHAPE SO AS TO REVERSE THE MAJOR AND MINOR AXES THEREOF, AND RECOMBINING THE PARTIAL STREAMS, THE IMPROVEMENT WHICH COMPRISES MAINTAINING THE CROSS SECTIONAL AREA OF EACH OF THE PARTIAL STREAMS CONSTANT DURING DISPLACEMENT AND ALTERATION OF CROSS SECTIONAL SHAPE.
References Cited (Backward Citations)
US3051453A
Cited
US3239197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |