Patent US3140326A successfully refreshed from Google Patents.
US3140326A
Expired / Lapsed
US
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Agglomerating method and apparatus
Assignee: Cleveland Cliffs Iron Co
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Filing: 1958-12-29
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Granted: 1964-07-07
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Louis J Erck
- 👤 Donald C Violetta
- 👤 Thomas E Ban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:18
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PELLETIZING APPARATUS ADAPTED TO FOR PELLETS OF POWDERED MATERIAL HAVING ITS PARTICLES IN AN ADHESIVE CONDITION, THE APPARATUS COMPRISING A VESSEL HAVING A SUBSTANTIALLY FLAT BOTTOM AND SUBSTANTIALLY CIRCULAR CONFINING WALL MEMBERS RISING FROM THE BOTTOM PORTION, AND HAVING ITS INNER SURFACE SHAPED TO FORM A PLURALITY OF ANNULAR COAXIAL TROUGH-LIKE PORTIONS OF DIFFERENT DIAMETER, THE SMALLER BEING ADJACENT THE FLAT BOTTOM PORTION, SAID TROUGH-LIKE PORTIONS BEING SEPARATED BY ANNULAR RIDGE PORTIONS, MEANS FOR MOUNTING THE VESSEL TO ROTATE ON AN AXIS AT AN ACUATE ANGLE TO THE HORIZONTAL, AND MEANS FOR FEED-
Claim 2
Dependent Claim
94 words
A PELLETIZING APPARATUS ADAPTED TO FOR PELLETS OF POWDERED MATERIAL HAVING ITS PARTICLES IN AN ADHESIVE CONDITION, THE APPARATUS COMPRISING A VESSEL HAVING A SUBSTANTIALLY FLAT BOTTOM AND SUBSTANTIALLY CIRCULAR CONFINING WALL MEMBERS RISING FROM THE BOTTOM PORTION, AND HAVING ITS INNER SURFACE SHAPED TO FORM A PLURALITY OF ANNULAR COAXIAL TROUGH-LIKE PORTIONS OF DIFFERENT DIAMETER, THE SMALLER BEING ADJACENT THE FLAT BOTTOM PORTION, SAID TROUGH-LIKE PORTIONS BEING SEPARATED BY ANNULAR RIDGE PORTIONS, MEANS FOR MOUNTING THE VESSEL TO ROTATE ON AN AXIS AT AN ACUATE ANGLE TO THE HORIZONTAL, AND MEANS FOR FEED-
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |