Patent US3711319A successfully refreshed from Google Patents.
US3711319A
Expired / Lapsed
US
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Coating of particles or powders
Assignee: Freund Corp
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Filing: 1970-06-16
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Granted: 1973-01-16
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Expires: 1990-06-16
Abstract
Abstract A PROCESS FOR COATING PARTICLES OR POWDER, CHARACTERIZED IN THAT A HORIZONTALLY ROTATING DISK IS INSTALLED IN THE LOWER PART OF A ROUND COATING TOWER, AND GAS IS GUIDED IN BETWEEN THE ROUND TOWER AND THE ROTATING DISK, AND ALSO, PARTICLES OR POWDER TO BE COATED ARE SUPPLIED INTO THE UPPER PART OF THE TOWER, AND A COATING AGENT IS SPRAYED INTO THE PARTICLES OR POWDER FLOWING ABOVE THE DISKS DUE TO THE UPWARD PASSAGE OF THE GAS AND THE CENTRIFUGAL FORCE OF THE DISK.
Inventors
- 👤 T Irikura
- 👤 J Imai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:50
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |