US2995438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of ores for metallurgical use
Assignee: Individual
•
Filing: 1958-11-25
•
Granted: 1961-08-08
•
Expires: 1978-11-25
Abstract
No abstract record available.
Inventors
- 👤 Subervie Georges Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:35
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A METHOD FOR PREPARING AGGLOMERATES FOR METALLURGICAL USES COMPRISING THE STEPS OF MIXING GRANULAR ELEMENTS WITH AN EMULSION OF WATER DISPERSED IN A CONTINUOUS PHASE OF HYDROCARBON OIL SO AS TO COAT SAID GRANULAR ELEMENTS WITH SAID EMULSION TO THEREBY FORM A FIRST PRODUCT, THEN MIXING SAID FIRST PRODUCT WITH A MIXTURE OF POWDERED PITCH AND HYDRAULIC CEMENT SO AS TO COAT SAID FIRST PRODUCT WITH SAID MIXTURE OF POWDERED PITCH AND HYDRAULIC CEMENT TO THEREBY FORM A SECOND PRODUCT, THEN MIXING SAID SECOND PRODUCT WITH POWDERED METAL ORE SO AS TO COST SAID SECOND PRODUCT WITH SAID POWDERED METAL ORE AND TO FORM DISCRETE NODULES AND SINTERING SAID NODULES TO PRODUCE SELF-SUPPORING AGGLOMERATES.
Claim 2
Independent Claim
114 words
A METHOD FOR PREPARING AGGLOMERATES FOR METALLURGICAL USES COMPRISING THE STEPS OF MIXING GRANULAR ELEMENTS WITH AN EMULSION OF WATER DISPERSED IN A CONTINUOUS PHASE OF HYDROCARBON OIL SO AS TO COAT SAID GRANULAR ELEMENTS WITH SAID EMULSION TO THEREBY FORM A FIRST PRODUCT, THEN MIXING SAID FIRST PRODUCT WITH A MIXTURE OF POWDERED PITCH AND HYDRAULIC CEMENT SO AS TO COAT SAID FIRST PRODUCT WITH SAID MIXTURE OF POWDERED PITCH AND HYDRAULIC CEMENT TO THEREBY FORM A SECOND PRODUCT, THEN MIXING SAID SECOND PRODUCT WITH POWDERED METAL ORE SO AS TO COST SAID SECOND PRODUCT WITH SAID POWDERED METAL ORE AND TO FORM DISCRETE NODULES AND SINTERING SAID NODULES TO PRODUCE SELF-SUPPORING AGGLOMERATES.
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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |