US3382093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed coating of fragile bodies
Assignee: Battelle Development Corp
•
Filing: 1965-11-22
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Granted: 1968-05-07
•
Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Nack Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:12
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32; B01J2/00; B01J2/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR COATING FRAGILE BODIES THAT ARE SUBJECTED TO BREAKAGE AND ATTRITION WHEN FLUIDIZED COMPRISING: (A) FORMING A FLUIDIZED BED OF PARTICULATE SOLIDS HAVING AN AVERAGE BED DENSITY THAT IS GREATER THAN SAID FRAGILE BODIES AND AN AVERAGE PARTICLE SIZE THAT IS SMALLER THAN SAID FRAGILE BODIES; (B) INTRODUCING SAID FRAGILE BODIES INTO SAID FLUIDIZED BED SO AS TO FORM A COMPOSITE FLUIDIZED BED; AND (C) INTRODUCING A SPRAY OF SAID COATING MATERIAL INTO SAID COMPOSITE FLUIDIZED BED SO AS TO COAT AND FRAGILE BODIES WITH SAID COATING MATERIAL.
Claim 2
Dependent Claim
90 words
A PROCESS FOR COATING FRAGILE BODIES THAT ARE SUBJECTED TO BREAKAGE AND ATTRITION WHEN FLUIDIZED COMPRISING: (A) FORMING A FLUIDIZED BED OF PARTICULATE SOLIDS HAVING AN AVERAGE BED DENSITY THAT IS GREATER THAN SAID FRAGILE BODIES AND AN AVERAGE PARTICLE SIZE THAT IS SMALLER THAN SAID FRAGILE BODIES; (B) INTRODUCING SAID FRAGILE BODIES INTO SAID FLUIDIZED BED SO AS TO FORM A COMPOSITE FLUIDIZED BED; AND (C) INTRODUCING A SPRAY OF SAID COATING MATERIAL INTO SAID COMPOSITE FLUIDIZED BED SO AS TO COAT AND FRAGILE BODIES WITH SAID COATING MATERIAL.
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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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |