US2914394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Briquetting of ores
Assignee: Individual
•
Filing: 1957-03-26
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Granted: 1959-11-24
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Expires: 1977-03-26
Abstract
No abstract record available.
Inventors
- 👤 Dohmen Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:03
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PROCESS OF BRIQUETTING ORES COMPRISING ADDING THE FINELY COMMINUTED ORES A BINDINGAGENT CONSISTING OF A MIXTURE OF A FINELY COMMINUTED CLAY-LIME MIXTURE, A STARCH, AN AQUEOUS SOLUTION OF SULPHATE SELECTED FROM THE GROUP CONSISTING OF MANESIUM SULPHATE AND IRON SULPHATE IN THE RATIO OF 5 GRAMS OF SULPHATE EACH LITRE OF WATE, ADDING 10 CC. OF THIS SOLUTION TO EACH KILOGRAM OF CLAY-LIME MIXTURE, AN AQUEOUS SOLUTION OF HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE AND SODIUM HYDROXIDE IN THE RATIO OF 10 GRAMS OF HYDROXIDE TO EACH LITRE OF WATER, ADDING 10 GRAMS OF THIS SOLUTION EVERY KILOGRAM OF STARCH, AND THEN KNEADING THE MIXTURE AND BRIQUETTING IT BY PRESSING.
Claim 2
Dependent Claim
114 words
A PROCESS OF BRIQUETTING ORES COMPRISING ADDING THE FINELY COMMINUTED ORES A BINDINGAGENT CONSISTING OF A MIXTURE OF A FINELY COMMINUTED CLAY-LIME MIXTURE, A STARCH, AN AQUEOUS SOLUTION OF SULPHATE SELECTED FROM THE GROUP CONSISTING OF MANESIUM SULPHATE AND IRON SULPHATE IN THE RATIO OF 5 GRAMS OF SULPHATE EACH LITRE OF WATE, ADDING 10 CC. OF THIS SOLUTION TO EACH KILOGRAM OF CLAY-LIME MIXTURE, AN AQUEOUS SOLUTION OF HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE AND SODIUM HYDROXIDE IN THE RATIO OF 10 GRAMS OF HYDROXIDE TO EACH LITRE OF WATER, ADDING 10 GRAMS OF THIS SOLUTION EVERY KILOGRAM OF STARCH, AND THEN KNEADING THE MIXTURE AND BRIQUETTING IT BY PRESSING.
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) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |