Patent US2947669A successfully refreshed from Google Patents.
US2947669A
Expired / Lapsed
US
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Rotary malting equipment
Assignee: Columbia Malting Co
•
Filing: 1956-09-24
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Granted: 1960-08-02
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Expires: 1976-09-24
Abstract
No abstract record available.
Inventors
- 👤 Alan R Graff
- 👤 Edwin C Juergens
- 👤 Samuel E Berkenblit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:17
CPC Classifications
C; C12; C12C; C12C1/00; C12C1/02; C12C1/027; C12C1/033; C12C1/067; C12C1/073; C12C1/12; C12C1/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A HORIZONTAL ROTARY MALTING DRUM, SAID DRUM BEING GENERALLY CYLINDRICAL IN SHAPE, THE OUTER WALLS OF THE CYLINDER BEING PERFORATE, A TUBULAR PERFORATE MEMBER SUPPORTED CENTRALLY OF THE DRUM, MEANS FOR SUPPLYING AIR TO THE TUBULAR MEMBER, MEANS FOR INTRODUCING GRAIN BETWEEN THE DRUM WALLS AND TUBULAR MEMBER, IMPERFORATE END WALL MEMBERS IN THE DRUM AND MANS FOR VARYING THE EFFECTIVE LENGTH AND CAPACITY OF THE SPACE BETWEEN THE END WALL MEMBERS AND SIMULTANEOUSLY SIMILARLY VARYING THE EFFECTIVE LENGTH OF THE PERFORATE SURFACE OF THE TUBULAR MEMBER.
Claim 2
Dependent Claim
87 words
A HORIZONTAL ROTARY MALTING DRUM, SAID DRUM BEING GENERALLY CYLINDRICAL IN SHAPE, THE OUTER WALLS OF THE CYLINDER BEING PERFORATE, A TUBULAR PERFORATE MEMBER SUPPORTED CENTRALLY OF THE DRUM, MEANS FOR SUPPLYING AIR TO THE TUBULAR MEMBER, MEANS FOR INTRODUCING GRAIN BETWEEN THE DRUM WALLS AND TUBULAR MEMBER, IMPERFORATE END WALL MEMBERS IN THE DRUM AND MANS FOR VARYING THE EFFECTIVE LENGTH AND CAPACITY OF THE SPACE BETWEEN THE END WALL MEMBERS AND SIMULTANEOUSLY SIMILARLY VARYING THE EFFECTIVE LENGTH OF THE PERFORATE SURFACE OF THE TUBULAR MEMBER.
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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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |