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US3092473A
Expired / Lapsed
US
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Cooler for sinter and the like
Assignee: Dravo Corp
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Filing: 1959-04-22
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Granted: 1963-06-04
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Expires: 1979-04-22
Abstract
No abstract record available.
Inventors
- 👤 Victor F Koontz
- 👤 John A Anthes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:50
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/26; F; F27; F27D; F27D15/00; F27D15/02; F27D15/0286; F27D2015/0293
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A SINTER COOLER COMPRISING A STRUCTURE HAVING INNER AND OUTER SPACED CIRCULAR WALLS OF TRUNCATED CONCIAL SHAPE CONCENTRIC ABOUT A VERTICAL AXIS, SAID WALLS BEING OF LOUVRELIKE CONSTRUCTION FOR THE PASSAGE OF AIR THERETHROUGH, THE ANNULAR SPACE BETWEEN THE TWO WALLS BEING A SINTER COOLING SPACE, A CONCIAL IMPERFORATE COVER OVER THE INNER WALL, THE SPACE WITHIN THE INNER WALL AND UNDERSAID COVER CONSTITUTING AN AIR PLENUM, MEANS FOR SUPPLYING AIR UNDER PRESSURE TO THE AIR PLENUM, A SHELL AROUND THE OUTER WALL AND EXTENDING OVER THE INNER WALL, AND AIR ESCAPE AND THE CONICAL COVER OVER THE INNER WALL, AND AIR ESCAPE PASSAGE LEADING FROM THE SHELL, A MATERIAL RECEIVING HOPPER IN THE SHELL CENTERED OVER THE SAID CONICAL COVER FOR DISCHARGING MATERIAL VERTICALLY ONTO THE CONCIAL COVER, MEANS AT THE BOTTOM OF SAID SPACE FORMING A CIRCULAR SERIES OF CONTIGUOUS HOPPERS HAVING DOWNWARDLY-CONVERGING SIDE WALLS, SAID HOPPER BEING LOCATED BELOW THE LOUVERED CIRCULAR WALLS, A VIBRATORY CONVEYOR EXTENDING RADIALLY IN-
Claim 2
Dependent Claim
162 words
A SINTER COOLER COMPRISING A STRUCTURE HAVING INNER AND OUTER SPACED CIRCULAR WALLS OF TRUNCATED CONCIAL SHAPE CONCENTRIC ABOUT A VERTICAL AXIS, SAID WALLS BEING OF LOUVRELIKE CONSTRUCTION FOR THE PASSAGE OF AIR THERETHROUGH, THE ANNULAR SPACE BETWEEN THE TWO WALLS BEING A SINTER COOLING SPACE, A CONCIAL IMPERFORATE COVER OVER THE INNER WALL, THE SPACE WITHIN THE INNER WALL AND UNDERSAID COVER CONSTITUTING AN AIR PLENUM, MEANS FOR SUPPLYING AIR UNDER PRESSURE TO THE AIR PLENUM, A SHELL AROUND THE OUTER WALL AND EXTENDING OVER THE INNER WALL, AND AIR ESCAPE AND THE CONICAL COVER OVER THE INNER WALL, AND AIR ESCAPE PASSAGE LEADING FROM THE SHELL, A MATERIAL RECEIVING HOPPER IN THE SHELL CENTERED OVER THE SAID CONICAL COVER FOR DISCHARGING MATERIAL VERTICALLY ONTO THE CONCIAL COVER, MEANS AT THE BOTTOM OF SAID SPACE FORMING A CIRCULAR SERIES OF CONTIGUOUS HOPPERS HAVING DOWNWARDLY-CONVERGING SIDE WALLS, SAID HOPPER BEING LOCATED BELOW THE LOUVERED CIRCULAR WALLS, A VIBRATORY CONVEYOR EXTENDING RADIALLY IN-
References Cited (Backward Citations)
FR459127A
Cited
US1558119A
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US1669012A
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US1888636A
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US2671057A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |