US3317191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for solids blending
Assignee: EIDP Inc
•
Filing: 1965-11-08
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Granted: 1967-05-02
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Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 George N Brown
- 👤 Willard D Stemborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:08
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/80; B01F25/82; B01F25/823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE METHOD OF BLENDING SOLIDS COMPRISING CONFINING A MASS OF THE HETEROGENEOUS SOLIDS IN AN ELEVATED COLUMN TO WHICH FRESH SOLIDS TO BE BLENDED ARE ADDED AT THE TOP, WITHDRAWING FROM SAID MASS IN A GENERALLY VERTICAL DIRECTION AND WITHIN ABOUT ONE-FOURTH OF THE DISTANCE FROM THE CENTER OF SAID MASS TO THE CONFINING WALL OF SAID COLUMN TAKEN AT THE LEVEL OF WITHDRAWAL INWARDLY FROM THE PERIPHERY OF SAID MASS SUBSTANTIALLY EQUAL AMOUNTS OF SAID SOLIDS PER UNIT TIME SIMULTANEOUSLY BY GRAVITY FLOW FROM A MULTICIPLICITY OF REGIONS DISPOSED LENGTHWISE OF SAID MASS AND SUBSTANTIALLY EQUIANGULARLY AROUND SAID PERIPHERY OF SAID MASS, COLLECTING SOLIDS WITHDRAWN FROM SAID MASS AS A FIRST BLENDED PRODUCT FRACTION DERIVED IN THE PROPORTION OF AT LEAST 75% FROM THE LOWER 25% OF THE VOLUME OF SAID MASS OF SAID HETEROGENEOUS SOLIDS IN SAID ELEVATED COLUMN, COLLECTING THE REMAINING SOLIDS
Claim 2
Independent Claim
145 words
THE METHOD OF BLENDING SOLIDS COMPRISING CONFINING A MASS OF THE HETEROGENEOUS SOLIDS IN AN ELEVATED COLUMN TO WHICH FRESH SOLIDS TO BE BLENDED ARE ADDED AT THE TOP, WITHDRAWING FROM SAID MASS IN A GENERALLY VERTICAL DIRECTION AND WITHIN ABOUT ONE-FOURTH OF THE DISTANCE FROM THE CENTER OF SAID MASS TO THE CONFINING WALL OF SAID COLUMN TAKEN AT THE LEVEL OF WITHDRAWAL INWARDLY FROM THE PERIPHERY OF SAID MASS SUBSTANTIALLY EQUAL AMOUNTS OF SAID SOLIDS PER UNIT TIME SIMULTANEOUSLY BY GRAVITY FLOW FROM A MULTICIPLICITY OF REGIONS DISPOSED LENGTHWISE OF SAID MASS AND SUBSTANTIALLY EQUIANGULARLY AROUND SAID PERIPHERY OF SAID MASS, COLLECTING SOLIDS WITHDRAWN FROM SAID MASS AS A FIRST BLENDED PRODUCT FRACTION DERIVED IN THE PROPORTION OF AT LEAST 75% FROM THE LOWER 25% OF THE VOLUME OF SAID MASS OF SAID HETEROGENEOUS SOLIDS IN SAID ELEVATED COLUMN, COLLECTING THE REMAINING SOLIDS
References Cited (Backward Citations)
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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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |