Patent US3286992A successfully refreshed from Google Patents.
US3286992A
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US
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Mixing device
Assignee: Arthur D Little Inc
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Filing: 1965-11-29
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Granted: 1966-11-22
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Expires: 1985-11-29
Abstract
No abstract record available.
Inventors
- 👤 Constantine D Armeniades
- 👤 William C Johnson
- 👤 Raphael Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/431; B01F25/4314; B01F25/43141; B01F2101/00; B01F2101/2305; B01F33/00; B01F33/50; B01F33/501; B01F33/5011; Y; Y10; Y10S; Y10S261/00; Y10S261/26; Y10S423/00; Y10S423/09; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A DEVICE FOR THOROUGH MIXING OF A PLURALITY OF FLUIDS WHILE CONVEYING THEM, CONSISTING ESSENTIALLY OF A HOLLOW CYLINDRICAL TUBE AND A PLURALITY OF CURVED SHEET-LIKE ELEMENTS EXTENDING IN SERIES LONGITUDINALLY WITHIN SAID TUBE THROUGHOUT THE LENGTH THEREOF, EACH ELEMENT EXTENDING TO THE TUBE WALLS THROUGHOUT ITS LENGTH AND DIVIDING SAID TUBE INTO TWO SEPARATED CHANNELS, SAID ELEMENTS BEING ARRANGED ALTERNATELY AND IN POINT-CONTACT WITH EACH OTHER AND HAVING CURAVATURE TO TURN THE DIRECTION OF THE FLOWING FLUID, THE EDGES OF EACH ELEMENT TRANSVERSE TO THE TUBE BEING POSITIONED AT AN ANGLE TO THE CONTACTING EDGES OF THE ADJACENT ELEMENTS, THE TOTAL CROSS-SECTIONAL AREA OF SAID TWO CHANNELS BEING SUBSTANTIALLY CONSTANT THROUGHOUT THE LENGTH OF SAID TUBE.
Claim 2
Independent Claim
117 words
A DEVICE FOR THOROUGH MIXING OF A PLURALITY OF FLUIDS WHILE CONVEYING THEM, CONSISTING ESSENTIALLY OF A HOLLOW CYLINDRICAL TUBE AND A PLURALITY OF CURVED SHEET-LIKE ELEMENTS EXTENDING IN SERIES LONGITUDINALLY WITHIN SAID TUBE THROUGHOUT THE LENGTH THEREOF, EACH ELEMENT EXTENDING TO THE TUBE WALLS THROUGHOUT ITS LENGTH AND DIVIDING SAID TUBE INTO TWO SEPARATED CHANNELS, SAID ELEMENTS BEING ARRANGED ALTERNATELY AND IN POINT-CONTACT WITH EACH OTHER AND HAVING CURAVATURE TO TURN THE DIRECTION OF THE FLOWING FLUID, THE EDGES OF EACH ELEMENT TRANSVERSE TO THE TUBE BEING POSITIONED AT AN ANGLE TO THE CONTACTING EDGES OF THE ADJACENT ELEMENTS, THE TOTAL CROSS-SECTIONAL AREA OF SAID TWO CHANNELS BEING SUBSTANTIALLY CONSTANT THROUGHOUT THE LENGTH OF SAID TUBE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |