Patent US3085947A successfully refreshed from Google Patents.
US3085947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing furnace charging mixtures including carbonaceous fuel
Assignee: Individual
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Filing: 1960-09-22
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Granted: 1963-04-16
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Expires: 1980-09-22
Abstract
No abstract record available.
Inventors
- 👤 Harold G Tufty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:31
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
METHOD OF PRODUCING FURNACE, CHARGING MIXTURES INCLUDING CARBONACEOUS FUEL CONSISTING ESSENTIALLY OF PREHEATING THE CARBONACEOUS FUEL, SUPERHEATING MATERIAL SUITABLE FOR FURNACE CHARGING PURPOSES TO A TEMPERATURE SUFFICIENT FOR HEATING SAID FUEL TO A PLASTIC STATE UPON CONTACT THEREWITH, FORMING SAID SUPERHEATED MATERIAL AS A MOVING LAYER, MIXING SAID FUEL AND AN ADDITIONAL AMOUNT OF SAID SUPERHEATED MATERIAL IN SPACE AND DROPPING SAID MIXTURE ONTO SAID MOVING LAYER WHILE IN AN ATMOSPHERE PREVENTING THE COMBUSTION OF SAID FUEL TO FORM A COMBINED SEMI-COKE AND FURNACE CHARGING MATERIAL SPONGE.
Claim 2
Dependent Claim
87 words
METHOD OF PRODUCING FURNACE, CHARGING MIXTURES INCLUDING CARBONACEOUS FUEL CONSISTING ESSENTIALLY OF PREHEATING THE CARBONACEOUS FUEL, SUPERHEATING MATERIAL SUITABLE FOR FURNACE CHARGING PURPOSES TO A TEMPERATURE SUFFICIENT FOR HEATING SAID FUEL TO A PLASTIC STATE UPON CONTACT THEREWITH, FORMING SAID SUPERHEATED MATERIAL AS A MOVING LAYER, MIXING SAID FUEL AND AN ADDITIONAL AMOUNT OF SAID SUPERHEATED MATERIAL IN SPACE AND DROPPING SAID MIXTURE ONTO SAID MOVING LAYER WHILE IN AN ATMOSPHERE PREVENTING THE COMBUSTION OF SAID FUEL TO FORM A COMBINED SEMI-COKE AND FURNACE CHARGING MATERIAL SPONGE.
References Cited (Backward Citations)
US2955991A
Cited
GB827592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |