US3306456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1964-09-16
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Granted: 1967-02-28
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Expires: 1984-09-16
Abstract
No abstract record available.
Inventors
- 👤 Robert E Fromson
- 👤 Jr Darl C Washburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:18
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211; B01D21/00; B01D21/0039; B01D21/0042; B01D21/02; B01D21/24; B01D21/245; B01D21/2494
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
SETTLING APPARATUS COMPRISING THREE OPEN-TOP NESTED CYLINDRICAL TANKS ARRANGED TO DEFINE A LIQUID-INPUT CHAMBER IN THE CENTER TANK AND ENCIRCLING LIQUID-OUTPUT AND SLUDGE-STORAGE CHAMBERS THEREAROUND; AN ARRAY OF THIN, HOLLOW, FRUSTRATED, CONICAL, SPACED-APART, CONVOLUTED SETTLING MEMBERS DISPOSED IN THE INNERMOST TANK, CONVOLUTIONS IN SAID MEMBERS EXTENDING RADIALLY INWARD AND UPWARD AND HAVING AT THEIR LOWERMOST PORTIONS VERTICALLY-ALIGNED OPENINGS FOR DOWNWARD TRANSMISSIONS OF SLUDGE TO A COMMON SLUDGE HEADER CHAMBER AT THE BOTTOM OF THE INNERMOST TANK AND BEING OPEN AT THEIR UPPER ENDS TO A HOLLOW INTERIOR OF SUCH ARRAY; A VERTICAL PERFORATED, LIQUID-OUTPUT PIPE EXTENDING DOWNWARD THROUGH SAID HOLLOW INTERIOR TO AN OUTPUT-LIQUID HEADER CHAMBER AT THE BOTTOM OF SAID INNERMOST TANK; AND RESPECTIVE SYPHON MEANS HAVING INLETS TO THE TWO HEADER CHAMBERS, RESPECTIVELY, AND OUTLETS OPENING INTO THE LIQUID-OUTPUT AND SLUDGE-STORAGE CHAMBERS, RESPECTIVELY, AT A LEVEL BELOW THE TOP OF THE INNERMOST TANK.
Claim 2
Dependent Claim
145 words
SETTLING APPARATUS COMPRISING THREE OPEN-TOP NESTED CYLINDRICAL TANKS ARRANGED TO DEFINE A LIQUID-INPUT CHAMBER IN THE CENTER TANK AND ENCIRCLING LIQUID-OUTPUT AND SLUDGE-STORAGE CHAMBERS THEREAROUND; AN ARRAY OF THIN, HOLLOW, FRUSTRATED, CONICAL, SPACED-APART, CONVOLUTED SETTLING MEMBERS DISPOSED IN THE INNERMOST TANK, CONVOLUTIONS IN SAID MEMBERS EXTENDING RADIALLY INWARD AND UPWARD AND HAVING AT THEIR LOWERMOST PORTIONS VERTICALLY-ALIGNED OPENINGS FOR DOWNWARD TRANSMISSIONS OF SLUDGE TO A COMMON SLUDGE HEADER CHAMBER AT THE BOTTOM OF THE INNERMOST TANK AND BEING OPEN AT THEIR UPPER ENDS TO A HOLLOW INTERIOR OF SUCH ARRAY; A VERTICAL PERFORATED, LIQUID-OUTPUT PIPE EXTENDING DOWNWARD THROUGH SAID HOLLOW INTERIOR TO AN OUTPUT-LIQUID HEADER CHAMBER AT THE BOTTOM OF SAID INNERMOST TANK; AND RESPECTIVE SYPHON MEANS HAVING INLETS TO THE TWO HEADER CHAMBERS, RESPECTIVELY, AND OUTLETS OPENING INTO THE LIQUID-OUTPUT AND SLUDGE-STORAGE CHAMBERS, RESPECTIVELY, AT A LEVEL BELOW THE TOP OF THE INNERMOST TANK.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |