US3235313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sluicing solid materials from spaces under superatmospheric pressure
Assignee: Beazer East Inc
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Filing: 1964-05-18
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Granted: 1966-02-15
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Waldhofer Reinhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:31
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/02; C; C10; C10J; C10J3/00; C10J3/46; C10J3/48; C10J3/52; C10J3/72; C10J3/78; C10J2300/00; C10J2300/16; C10J2300/1625; C10J2300/1628
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A PROCESS FOR SLUICING SOLID MATERIALS FROM SPACES UNDER SUPERATMOSPHERIC PRESSURE PARTICULARLY THOSE EMPLOYED FOR THE GASIFICATION OF FINELY DIVIDED SOLID FUELS SUSPENDED IN OXYGEN COMPRISING: DISCHARGING SAID SOLID MATERIALS FROM A SPACE UNDER SUPERATMOSPHERIC PRESSURE INTO THE FIRST OF A PAIR OF WATER FILLED SLUICE ZONES, CONDUCTING SAID SOLID MATERIALS FROM THE FIRST OF SAID SLUICE ZONES TO THE SECOND OF SAID SLUICE ZONES, PLACING A WATER SUPPLY UNDER A GAS PRESSURE, FLOWING WATER FROM SAID SUPPLY THROUGH SAID SECOND SLUICE ZONE TO A BUFFER ZONE WHICH IS UNDER A LOWER GAS PRESSURE SUCH THAT SAID SOLID MATERIALS ARE DISCHARGED FROM SAID SECOND SLUICE ZONE INTO SAID BUFFER ZONE, ISOLATING SAID BUFFER ZONE FROM SAID SECOND SLUICE ZONE, AND DISCHARGING SAID SOLID MATERIALS FROM SAID BUFFER ZONE BY PERMITTING THE EXPANSION OF THE GAS CUSHION CREATED BY THE INFLOW OF WATER AND SOLIDS INTO SAID BUFFER ZONE FROM SAID SUPPLY AND SAID SECOND SLUICE ZONE.
Claim 2
Dependent Claim
156 words
A PROCESS FOR SLUICING SOLID MATERIALS FROM SPACES UNDER SUPERATMOSPHERIC PRESSURE PARTICULARLY THOSE EMPLOYED FOR THE GASIFICATION OF FINELY DIVIDED SOLID FUELS SUSPENDED IN OXYGEN COMPRISING: DISCHARGING SAID SOLID MATERIALS FROM A SPACE UNDER SUPERATMOSPHERIC PRESSURE INTO THE FIRST OF A PAIR OF WATER FILLED SLUICE ZONES, CONDUCTING SAID SOLID MATERIALS FROM THE FIRST OF SAID SLUICE ZONES TO THE SECOND OF SAID SLUICE ZONES, PLACING A WATER SUPPLY UNDER A GAS PRESSURE, FLOWING WATER FROM SAID SUPPLY THROUGH SAID SECOND SLUICE ZONE TO A BUFFER ZONE WHICH IS UNDER A LOWER GAS PRESSURE SUCH THAT SAID SOLID MATERIALS ARE DISCHARGED FROM SAID SECOND SLUICE ZONE INTO SAID BUFFER ZONE, ISOLATING SAID BUFFER ZONE FROM SAID SECOND SLUICE ZONE, AND DISCHARGING SAID SOLID MATERIALS FROM SAID BUFFER ZONE BY PERMITTING THE EXPANSION OF THE GAS CUSHION CREATED BY THE INFLOW OF WATER AND SOLIDS INTO SAID BUFFER ZONE FROM SAID SUPPLY AND SAID SECOND SLUICE ZONE.
References Cited (Backward Citations)
US3175566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |