US3143395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of operating a fluid mixer with rotating baffles
Assignee: Shell USA Inc
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Filing: 1959-07-14
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Granted: 1964-08-04
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Expires: 1979-07-14
Abstract
No abstract record available.
Inventors
- 👤 Oswald H Milmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:16
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/50; B01F35/53; B01F35/531; B01F35/5311; B01F27/00; B01F27/80; B01F27/93; B01F27/05; B01F27/11; B01F27/19; B01F27/191
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN THE METHOD OF MIXING FLUIDS THAT ARE AT LEAST PARTIALLY IMMISCIBLE WHICH COMPRISES FLOWING SAID FLUIDS THROUGH A VERTICALLY ELONGATED VESSEL CONTAINING A PLURALITY OF TRANSVERSE, AXIALLY SPACED, BAFFLES DEFINING A SERIES OF CONSECUTIVELY COMMUNICATING COMPARTMENTS, AND A ROTOR SHAFT EXTENDING THROUGH SAID VESSEL AND CARRYING AT LEAST SOME OF SAID BAFFLES FOR ROTATION THEREWITH, AND ROTATING SAID SHAFT AND THE BAFFLES CARRIED THEREBY TO FORM A DISPERSION OF ONE OF SAID FLUIDS IN THE OTHER, THE IMPROVEMENT WHICH COMPRISES CONTINUALLY CHANGING THE ROTATIONAL SPEED OF SAID ROTOR SHAFT AND BAFFLES DURING THE MIXING PROCESS BETWEEN ALTERNATING RELATIVELY HIGHER AND LOWER SPEED SUFFICIENT TO MAINTAIN SAID FLUIDS AS A DISPERSION.
Claim 2
Dependent Claim
111 words
IN THE METHOD OF MIXING FLUIDS THAT ARE AT LEAST PARTIALLY IMMISCIBLE WHICH COMPRISES FLOWING SAID FLUIDS THROUGH A VERTICALLY ELONGATED VESSEL CONTAINING A PLURALITY OF TRANSVERSE, AXIALLY SPACED, BAFFLES DEFINING A SERIES OF CONSECUTIVELY COMMUNICATING COMPARTMENTS, AND A ROTOR SHAFT EXTENDING THROUGH SAID VESSEL AND CARRYING AT LEAST SOME OF SAID BAFFLES FOR ROTATION THEREWITH, AND ROTATING SAID SHAFT AND THE BAFFLES CARRIED THEREBY TO FORM A DISPERSION OF ONE OF SAID FLUIDS IN THE OTHER, THE IMPROVEMENT WHICH COMPRISES CONTINUALLY CHANGING THE ROTATIONAL SPEED OF SAID ROTOR SHAFT AND BAFFLES DURING THE MIXING PROCESS BETWEEN ALTERNATING RELATIVELY HIGHER AND LOWER SPEED SUFFICIENT TO MAINTAIN SAID FLUIDS AS A DISPERSION.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |