Patent US3398718A successfully refreshed from Google Patents.
US3398718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized-bed coating apparatus
Assignee: United States Atomic Energy Commission
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Filing: 1965-03-10
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Granted: 1968-08-27
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Expires: 1985-03-10
Abstract
No abstract record available.
Inventors
- 👤 Roger L Pilloton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:56
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/006; B01J8/00; B01J8/18; B01J8/1818; B01J8/24; B01J8/245; B01J8/44; B01J2219/00; B01J2219/02; B01J2219/0204; B01J2219/0227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A GAS-SOLID COATING APPARATUS COMPRISING: A CONTACTING CHAMBER ADAPTED TO HOLD A COLUMNR BED OF DISCRETE SOLID PARTICLES; SAID CHAMBER HAVING A MAJOR PORTION COMPRISING AN UPPER CYLINDRICAL SECTION AND A TAPERED LOWER SECTION; A DOWNWARDLY DIRECTED SUBSTANTIALLY CONICAL FACE PLATE HAVING AN INCLUDED ANGLE BETWEEN 100 TO 150; SAID FACE PLATE BEING APERTURED AT ITS APEX AND HAVING A PLURALITY OF APERTURES PERIPHERALLY DISPOSED THEREABOUT; SAID FACE PLATE BEING JOINED AT THE PERIPHERY THEREOF TO SAID TAPERED LOWER SECTION, THEREBY FORMING A BUTTOM FOR SAID CONTACTING CHAMBER; A TERMINAL MEMBER INCLUDING AN UPPER PLATE PORTION CLOSELY SPACED FROM AND CONICALLY GENERALLY CONFORMING TO SAID FACE PLATE MEANS CONNECTING AND ENCLOSING THE FACE PLATE AND UPPER PLATE PORTION AT THE PERIPHERAL EXTENDS THEREOF WHEREBY IS FORMED A SECOND CHAMBER, SAID SECOND CHAMBER COMMUNICATING WITH SAID CONTACTING CHAMBER THROUGH SAID PERIPHERALLY DISPOSED APERTURES; SAID UPPER PLATE PORTION COMPRISING THE UPPER
Claim 2
Dependent Claim
149 words
A GAS-SOLID COATING APPARATUS COMPRISING: A CONTACTING CHAMBER ADAPTED TO HOLD A COLUMNR BED OF DISCRETE SOLID PARTICLES; SAID CHAMBER HAVING A MAJOR PORTION COMPRISING AN UPPER CYLINDRICAL SECTION AND A TAPERED LOWER SECTION; A DOWNWARDLY DIRECTED SUBSTANTIALLY CONICAL FACE PLATE HAVING AN INCLUDED ANGLE BETWEEN 100 TO 150; SAID FACE PLATE BEING APERTURED AT ITS APEX AND HAVING A PLURALITY OF APERTURES PERIPHERALLY DISPOSED THEREABOUT; SAID FACE PLATE BEING JOINED AT THE PERIPHERY THEREOF TO SAID TAPERED LOWER SECTION, THEREBY FORMING A BUTTOM FOR SAID CONTACTING CHAMBER; A TERMINAL MEMBER INCLUDING AN UPPER PLATE PORTION CLOSELY SPACED FROM AND CONICALLY GENERALLY CONFORMING TO SAID FACE PLATE MEANS CONNECTING AND ENCLOSING THE FACE PLATE AND UPPER PLATE PORTION AT THE PERIPHERAL EXTENDS THEREOF WHEREBY IS FORMED A SECOND CHAMBER, SAID SECOND CHAMBER COMMUNICATING WITH SAID CONTACTING CHAMBER THROUGH SAID PERIPHERALLY DISPOSED APERTURES; SAID UPPER PLATE PORTION COMPRISING THE UPPER
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) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |