US3606272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Valmet AB
•
Filing: 1970-03-23
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Granted: 1971-09-20
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Expires: 1990-03-23
Abstract
Abstract APPARATUS FOR MIXING SUSPENSIONS OF MATERIALS WHILE ADMIXING ADDITIONAL TREATING MATERIALS THEREWITH IN WHICH THE SUSPENSION IS CIRCULATED THROUGH A SLEEVE-SHAPED CASING ENTIRELY WITHIN A CONTAINER. THE TREATING MATERIALS ARE ADDED TO THE SUSPENSION WHILE IT IS BEING IMPELLED THROUGH THE SLEEVE-SHAPED CASING. THE OUTLET END OF THE CASING IS SPACED FORM THE WALL OF THE CONTAINER WHICH PROVIDES A SURFACE FOR IMPINGEMENT OF THE TREATED SUSPENSION TO PROVIDE TURBULENT MIXING THEREOF.
Inventors
- 👤 Karl Erik Bergstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:01
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/60; B01F27/71; B01F27/711; B01F27/7111
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |