Patent US2804379A successfully refreshed from Google Patents.
US2804379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid mixer with rotating baffles
Assignee: Shell Development Co
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Filing: 1956-06-21
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Granted: 1957-08-27
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Expires: 1976-06-21
Abstract
No abstract record available.
Inventors
- 👤 Harry A Wistrich
- 👤 Richard B Olney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:47
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
158 words
A FLUID MIXING APPARATUS COMPRISING: AN AXIALLY ELONGATED VESSEL; A PLURIALITY OF TRANSVERSE, AXIALLY SPACED ANNULAR STATOR BAFFLES HAVING OPPOSED FACES AND OPENING THEREIN FIXED WITHIN SAID VESSEL AND DEFINING A SERIES OF COMPARTMENTS WHICH ARE IN CONSECUTIVE COMMUNICATION THROUGH SAID OPENINGS; MEAND FOR ADMITTING A FLUID TO THE VESSEL AT ONE END OF THE SERIES; AND FOR DISCHARGING THE FLUID AT THE OTHER END OF THE SERIES; A ROTOR INCLUDING A ROTATABLY MOUNTED SHAFT EXTENDING THROUGH SAID OPENINGS WITH AMPLE RADIAL CLEARANCE AND CARRYING FAST FOR ROTATION THEREWITH A PLURALITY OF ROTOR BAFFLES; EACH ROTOR BAFFLE BEING SITUATED WITHIN ONE OF SAID COMPARTMENTS IN AXIALLY SPACED RELATION TO THE STATOR BAFFLES, AND DEFLECTING MEANS INCLUDING A DEFLECTING BODY WHICH HAS A SUFACE SITUATED AT AN OPENING OF AN INTERMEDIATE STATOR BAFFLE AND INCLINED TO THE PLANE OF THE STATOR BAFFLE SO AS TO DEFLECT IN AN AXIAL DIRECTION THE FLUID THAT MOVES INWARDLY ALONG SAID STATOR BAFFLE.
Claim 2
Dependent Claim
158 words
A FLUID MIXING APPARATUS COMPRISING: AN AXIALLY ELONGATED VESSEL; A PLURIALITY OF TRANSVERSE, AXIALLY SPACED ANNULAR STATOR BAFFLES HAVING OPPOSED FACES AND OPENING THEREIN FIXED WITHIN SAID VESSEL AND DEFINING A SERIES OF COMPARTMENTS WHICH ARE IN CONSECUTIVE COMMUNICATION THROUGH SAID OPENINGS; MEAND FOR ADMITTING A FLUID TO THE VESSEL AT ONE END OF THE SERIES; AND FOR DISCHARGING THE FLUID AT THE OTHER END OF THE SERIES; A ROTOR INCLUDING A ROTATABLY MOUNTED SHAFT EXTENDING THROUGH SAID OPENINGS WITH AMPLE RADIAL CLEARANCE AND CARRYING FAST FOR ROTATION THEREWITH A PLURALITY OF ROTOR BAFFLES; EACH ROTOR BAFFLE BEING SITUATED WITHIN ONE OF SAID COMPARTMENTS IN AXIALLY SPACED RELATION TO THE STATOR BAFFLES, AND DEFLECTING MEANS INCLUDING A DEFLECTING BODY WHICH HAS A SUFACE SITUATED AT AN OPENING OF AN INTERMEDIATE STATOR BAFFLE AND INCLINED TO THE PLANE OF THE STATOR BAFFLE SO AS TO DEFLECT IN AN AXIAL DIRECTION THE FLUID THAT MOVES INWARDLY ALONG SAID STATOR BAFFLE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |