US3265775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous treatment of subdivided material with gas
Assignee: Miag Muehlenbau und Industrie GmbH
•
Filing: 1963-02-26
•
Granted: 1966-08-09
•
Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:54
CPC Classifications
F; F27; F27B; F27B15/00; B; B01; B01J; B01J8/00; B01J8/18; B04; B04C; B04C9/00; B07; B07B; B07B7/00; B07B7/08; F27B7/00; F27B7/20; F27B7/2016; F27B7/2025; B04C2009/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
METHOD FOR THE CONTINUOUS TREATMENT OF GRANULAR AND FINELY DIVIDED PARTICLES OF MATERIAL IN A COUNTERFLOWING HIGHLY COMPRESSIBLE FLUID FLOWING UPWARDLY IN WHICH SUCH MATERIAL IS TREATED WITHOUT ESSENTIALLY CHANGE AS TO FORM AND WEIGHT OF THE PARTICLES, COMPRISING THE STEPS OF EFFECTING A CONTINUOUS FLOW OF THE FLUID IN AN UPWARD DIRECTION WITH SUCH FLUID RISING WITH DECREASING VELOCITY, INTRODUCING SAID MATERIAL INTO SAID FLUID FLOW IN A DIRECTION COUNTER THERETO, CONTINUOUSLY MAINTAINING THE VELOCITY OF SAID FLUID AT A RATE HIGHER THAN THAT REQUIRED TO MAINTAIN SUSPENSION OF THE MATERIAL PARTICLES, AND CONTROLLING THE AMOUNT OF MATERIAL ADDED PER UNIT OF TIME TO THE FLUID TO EFFECT A COMPRESSION OF SUCH MATERIAL AND THEREBY FORM SUCCESSIVE CLOUDS WHICH REACH A DENSITY SUFFICIENT TO FALL
Claim 2
Dependent Claim
126 words
METHOD FOR THE CONTINUOUS TREATMENT OF GRANULAR AND FINELY DIVIDED PARTICLES OF MATERIAL IN A COUNTERFLOWING HIGHLY COMPRESSIBLE FLUID FLOWING UPWARDLY IN WHICH SUCH MATERIAL IS TREATED WITHOUT ESSENTIALLY CHANGE AS TO FORM AND WEIGHT OF THE PARTICLES, COMPRISING THE STEPS OF EFFECTING A CONTINUOUS FLOW OF THE FLUID IN AN UPWARD DIRECTION WITH SUCH FLUID RISING WITH DECREASING VELOCITY, INTRODUCING SAID MATERIAL INTO SAID FLUID FLOW IN A DIRECTION COUNTER THERETO, CONTINUOUSLY MAINTAINING THE VELOCITY OF SAID FLUID AT A RATE HIGHER THAN THAT REQUIRED TO MAINTAIN SUSPENSION OF THE MATERIAL PARTICLES, AND CONTROLLING THE AMOUNT OF MATERIAL ADDED PER UNIT OF TIME TO THE FLUID TO EFFECT A COMPRESSION OF SUCH MATERIAL AND THEREBY FORM SUCCESSIVE CLOUDS WHICH REACH A DENSITY SUFFICIENT TO FALL
References Cited (Backward Citations)
US2021034A
Cited
US2659587A
Cited
US2785886A
Cited
US2857683A
Cited
US3140862A
Cited
US3067990A
Cited
US3118658A
Cited
US3102719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |