US3063860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed coating method and apparatus
Assignee: Knapsack AG
•
Filing: 1957-12-20
•
Granted: 1962-11-13
•
Expires: 1977-12-20
Abstract
No abstract record available.
Inventors
- 👤 Gemmer Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:06
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/22; Y; Y10; Y10S; Y10S118/00; Y10S118/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE PROCESS OF FORMING A COHERENT LAYER OF MATERIAL ON THE INTERIOR SURFACE OF A HOLLOW ARTIC HAVING OPPOSITELY DISPOSED OPENINGS WHICH COMPRISES HEATING SAID ARTICLE TO A PREDETERMINED TEMPERATURE BELOW THE DETERIORATION TEEMPERATURE OF TTHE ARTICLE, FORMING A FLUIDIZED BED IN A CHAMBER BY PASSING A CURRENT OF GAS THROUGH A MASS OF SOLID PULVERULENT LAYER-FORMING MATERIAL HAVING PARTICLES THEREIN WITH A SINTERING TEMPERATURE BELOW SAID PREDETERMINED TEMPERATURE, INCREASING THE VELOCITY OF SAID FLUIDIZING GASES ADJACENT THE UPPER PORTTION OF SAID CHAMBER AND EXPANDING SAID MASS THROUGH AN OPENING OF SAID ARTICLE WHEREBY SAID MASS FILLS SAID ARTICLE AND IS CONFINED LATERALLY BY THE INTERIOR SURFACE OF SAID HOLLOW ARTICLE TO DEPOSIT A COATING OF SAID PARTICLES ON SAID INTERIOR SURFACE, AND THEN COOLING THE COATED ARTICLE.
Claim 2
Dependent Claim
128 words
THE PROCESS OF FORMING A COHERENT LAYER OF MATERIAL ON THE INTERIOR SURFACE OF A HOLLOW ARTIC HAVING OPPOSITELY DISPOSED OPENINGS WHICH COMPRISES HEATING SAID ARTICLE TO A PREDETERMINED TEMPERATURE BELOW THE DETERIORATION TEEMPERATURE OF TTHE ARTICLE, FORMING A FLUIDIZED BED IN A CHAMBER BY PASSING A CURRENT OF GAS THROUGH A MASS OF SOLID PULVERULENT LAYER-FORMING MATERIAL HAVING PARTICLES THEREIN WITH A SINTERING TEMPERATURE BELOW SAID PREDETERMINED TEMPERATURE, INCREASING THE VELOCITY OF SAID FLUIDIZING GASES ADJACENT THE UPPER PORTTION OF SAID CHAMBER AND EXPANDING SAID MASS THROUGH AN OPENING OF SAID ARTICLE WHEREBY SAID MASS FILLS SAID ARTICLE AND IS CONFINED LATERALLY BY THE INTERIOR SURFACE OF SAID HOLLOW ARTICLE TO DEPOSIT A COATING OF SAID PARTICLES ON SAID INTERIOR SURFACE, AND THEN COOLING THE COATED ARTICLE.
References Cited (Backward Citations)
US1687102A
Cited
US2539263A
Cited
GB579442A
Cited
US2414625A
Cited
US2478940A
Cited
US2586818A
Cited
US2666269A
Cited
US2719093A
Cited
US2815550A
Cited
US2729194A
Cited
US2880109A
Cited
US2844489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |