US2599530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flotation of siliceous impurities from mineral-bearing material
Assignee: JBS USA LLC
•
Filing: 1946-05-23
•
Granted: 1952-06-10
•
Expires: 1966-05-23
Abstract
No abstract record available.
Inventors
- 👤 Hodges William Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:53
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/02; B03D1/06; B03D1/14; B03D1/1406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN THE PROCESS OF TREATING MINERAL-BEARING MATERIAL BY FLOTATION WHEREBY THE SILICEOUS IMPURITIES INCORPORATED THEREWITH ARE FLOATED, THE STEPS OF MIXING MINERAL ACID WITH SAID MINERALBEARING MATERIAL TO ACTIVATE THE SILICEOUS IMPURITIES, FLOWING SAID MIXTURE TO A QUIESCENT ZONE, CONTACTING SAID MIXTURE WITH WATER DIFFUSED INTO SAID ZONE WHEREBY SUBSTANTIALLY ALL OF THE ACID IS REMOVED, WITHDRAWING SAID MINERAL-BEARING MATERIAL FROM SAID ZONE, AND ADDING SILICA FLOTATION REAGENTS THERETO BEFORE ANY APPRECIABLE AGITATION HAS DESTROYED THE ACID ACTIVATION OF THE SILICA
Claim 2
Dependent Claim
81 words
IN THE PROCESS OF TREATING MINERAL-BEARING MATERIAL BY FLOTATION WHEREBY THE SILICEOUS IMPURITIES INCORPORATED THEREWITH ARE FLOATED, THE STEPS OF MIXING MINERAL ACID WITH SAID MINERALBEARING MATERIAL TO ACTIVATE THE SILICEOUS IMPURITIES, FLOWING SAID MIXTURE TO A QUIESCENT ZONE, CONTACTING SAID MIXTURE WITH WATER DIFFUSED INTO SAID ZONE WHEREBY SUBSTANTIALLY ALL OF THE ACID IS REMOVED, WITHDRAWING SAID MINERAL-BEARING MATERIAL FROM SAID ZONE, AND ADDING SILICA FLOTATION REAGENTS THERETO BEFORE ANY APPRECIABLE AGITATION HAS DESTROYED THE ACID ACTIVATION OF THE SILICA
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |