US2976126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing mixed fertilizers
Assignee: Central Farmers Fertilizer Co
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Filing: 1957-09-18
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Granted: 1961-03-21
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Expires: 1977-09-18
Abstract
No abstract record available.
Inventors
- 👤 James E Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:19
CPC Classifications
C; C05; C05B; C05B1/00; C05B1/06; B; B01; B01J; B01J2/00; B01J2/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
AN APPARATUS FOR USE IN MANUFACTURING GRANULAR MIXED FERTILIZER COMPRISING: A FIRST ELONGATED, SUBSTANTIALLY CLOSED REACTION CHAMBER; A SECOND ELONGATED, CLOSED REACTION CHAMBER ARRANGED IN ASCENDING SERIES WITH SAID FIRST REACTION CHAMBER, THE DOWNSTREAM END OF SAID FIRST CHAMBER COMMUNICATING WITH THE UPSTREAM END OF SAID SECOND CHAMBER BY MEANS OF A THROAT; A THIRD ELONGATED, VENTILATED REACTION CHAMBER ARRANGED IN ASCENDING SERIES WITH SAID SECOND REACTION CHAMBER, THE DOWNSTREAM END OF SAID SECOND CHAMBER COMMUNICATING WITH THE UPSTREAM END OF SAID THIRD CHAMBER BY MEANS OF A THROAT; SUPPLY MEANS FEEDING FERTILIZER INGREDIENTS AND WATER TO SAID FIRST CHAMBER; MIXING AND ADVANCING MEANS ARRANGED IN EACH OF SAID CHAMBER FOR ADVANCING THE MIXTURE OF SAID FERTILIZER INGREDIENTS AND SAID WATER IN THE FORM OF A REACTION BED, SAID BED CREATING A VAPOR SEAL AT EACH OF SAID THROATS; AND EVAPORATING MEANS FOR PASSING A CURRENT OF DRYING GAS THROUGH SAID THIRD CHAMBER IN INTIMATE CONTACT WITH SAID MIXTURE.
Claim 2
Independent Claim
159 words
AN APPARATUS FOR USE IN MANUFACTURING GRANULAR MIXED FERTILIZER COMPRISING: A FIRST ELONGATED, SUBSTANTIALLY CLOSED REACTION CHAMBER; A SECOND ELONGATED, CLOSED REACTION CHAMBER ARRANGED IN ASCENDING SERIES WITH SAID FIRST REACTION CHAMBER, THE DOWNSTREAM END OF SAID FIRST CHAMBER COMMUNICATING WITH THE UPSTREAM END OF SAID SECOND CHAMBER BY MEANS OF A THROAT; A THIRD ELONGATED, VENTILATED REACTION CHAMBER ARRANGED IN ASCENDING SERIES WITH SAID SECOND REACTION CHAMBER, THE DOWNSTREAM END OF SAID SECOND CHAMBER COMMUNICATING WITH THE UPSTREAM END OF SAID THIRD CHAMBER BY MEANS OF A THROAT; SUPPLY MEANS FEEDING FERTILIZER INGREDIENTS AND WATER TO SAID FIRST CHAMBER; MIXING AND ADVANCING MEANS ARRANGED IN EACH OF SAID CHAMBER FOR ADVANCING THE MIXTURE OF SAID FERTILIZER INGREDIENTS AND SAID WATER IN THE FORM OF A REACTION BED, SAID BED CREATING A VAPOR SEAL AT EACH OF SAID THROATS; AND EVAPORATING MEANS FOR PASSING A CURRENT OF DRYING GAS THROUGH SAID THIRD CHAMBER IN INTIMATE CONTACT WITH SAID MIXTURE.
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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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |