US3170786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary kiln processing of chemically reactive materials
Assignee: RN Corp
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Filing: 1962-02-02
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Granted: 1965-02-23
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Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 Moklebust Olav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:01
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD OF PROCESSING LOOSE AGGREAGES OF REACTIVE MATERIALS, AT HIGH FEED RATES, IN AN AXIALLY INCLINED ROTARY KILN HAVING AN UPPER CHARGING INLET AND A LOWER DISCHARGING OUTLET, WHICH COMPRISES: ESTABLISHING SAID KILN INCLINATION AT A SLOPE OF NOT MORE THAN ABOUT 2 DEGREES TO THE HORIZONTAL, PROGRESSIVELY FEEDING INTO THE CHARGING END SAID LOOSE AGGREAGE MATERIAL WHILE ROTATING SAID KILN AT A RATE OF AT LEAST ONE-HALF REVOLUTION PER MINUTE, SAID CHARGING RATE BEING SUCH AS TO ESTABLISH AND MAINTAIN A MOVING BED OF SAID MATERIAL OCCUPYING ABOUT 15-25% OF THE KILN VOLUME, AND WHILE INJECTING INTO THE KILN DISCHARGE END
Claim 2
Independent Claim
103 words
THE METHOD OF PROCESSING LOOSE AGGREAGES OF REACTIVE MATERIALS, AT HIGH FEED RATES, IN AN AXIALLY INCLINED ROTARY KILN HAVING AN UPPER CHARGING INLET AND A LOWER DISCHARGING OUTLET, WHICH COMPRISES: ESTABLISHING SAID KILN INCLINATION AT A SLOPE OF NOT MORE THAN ABOUT 2 DEGREES TO THE HORIZONTAL, PROGRESSIVELY FEEDING INTO THE CHARGING END SAID LOOSE AGGREAGE MATERIAL WHILE ROTATING SAID KILN AT A RATE OF AT LEAST ONE-HALF REVOLUTION PER MINUTE, SAID CHARGING RATE BEING SUCH AS TO ESTABLISH AND MAINTAIN A MOVING BED OF SAID MATERIAL OCCUPYING ABOUT 15-25% OF THE KILN VOLUME, AND WHILE INJECTING INTO THE KILN DISCHARGE END
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |