US3118574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the downflow of a column of divided material
Assignee: ALSACIEME DE CONST MECANIQUES
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Filing: 1960-04-25
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Granted: 1964-01-21
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Comte Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:17
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/80; B01F25/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN APPARATUS FOR CONTROLLING THE DOWNFLOW OF A COLUMN OF DIVIDED MATERIAL, SAID APPARATUS COMPRISING TWO HORIZONTALLY SPACED ARRAYS EACH INCLUDING A PLURALITY OF VERTICALLY SPACED FLOW CONTROL ELEMENTS ROTATABLE ABOUT RESPECTIVE HORIZONTAL PARALLEL AXES, EACH ROTATABLE ELEMENT OF ONE ARRAY BEING ARRANGED OPPOSITE A CORRESPONDING ELEMENT OF THE OTHER ARRAY TO FORM THEREWITH A PAIR OF CORRESPONDING ELEMENTS, EACH ELEMENT HAVING A PLURALITY OF VANES EXTENDING SUBSTANTIALLY RADIALLY ABOUT THE HORIZONTAL AXIS OF THE ELEMENT AND ARRANGED AT EQUAL ANGULAR DISTANCES FROM EACH OTHER ABOUT SAID AXIS; MEANS FOR ROTATING THE TWO ELEMENTS OF EACH PAIR AND MAINTAINING THE
Claim 2
Independent Claim
100 words
AN APPARATUS FOR CONTROLLING THE DOWNFLOW OF A COLUMN OF DIVIDED MATERIAL, SAID APPARATUS COMPRISING TWO HORIZONTALLY SPACED ARRAYS EACH INCLUDING A PLURALITY OF VERTICALLY SPACED FLOW CONTROL ELEMENTS ROTATABLE ABOUT RESPECTIVE HORIZONTAL PARALLEL AXES, EACH ROTATABLE ELEMENT OF ONE ARRAY BEING ARRANGED OPPOSITE A CORRESPONDING ELEMENT OF THE OTHER ARRAY TO FORM THEREWITH A PAIR OF CORRESPONDING ELEMENTS, EACH ELEMENT HAVING A PLURALITY OF VANES EXTENDING SUBSTANTIALLY RADIALLY ABOUT THE HORIZONTAL AXIS OF THE ELEMENT AND ARRANGED AT EQUAL ANGULAR DISTANCES FROM EACH OTHER ABOUT SAID AXIS; MEANS FOR ROTATING THE TWO ELEMENTS OF EACH PAIR AND MAINTAINING THE
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |