US3060042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of dead burned grain
Assignee: Harbison Walker Refractories Co
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Filing: 1960-07-01
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Granted: 1962-10-23
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Expires: 1980-07-01
Abstract
No abstract record available.
Inventors
- 👤 Leatham Earl
- 👤 Albert H Pack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:53
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/03; C04B35/057; C04B2/00; C04B2/10; C04B2/102; C04B35/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THAT METHOD COMPRISING THE STEPS OF DRY FORMING INTO SMALL COMPRESSED BODIES UNDER A PRESSURE OF AT LEAST 20,000 P.S.I. A COMPRESSED FREE FROM WATER CONTAINING ABOUT 5 TO 100 PERCENT CAO AND THE REMAINDER MGO, WHERE THE COMPONENTS OF SAID COMPOSITION ARE SELECTED FROM THE GROUP CONSISTING OF HIGH PURITY CALCINED LIME, HIGH PURITY CALCINED DOLOMITE, AND CAUSTIC CALCINED MAGNESIA, AND PASSING THE SAID BODIES TO A FURNACE AND HEATING THEM TO A TEMPERTURE OF AT LEAST 3400*F. TO PRODUCE A DEAD BURNED PRODUCT OF HIGH DENSITY.
Claim 2
Dependent Claim
88 words
THAT METHOD COMPRISING THE STEPS OF DRY FORMING INTO SMALL COMPRESSED BODIES UNDER A PRESSURE OF AT LEAST 20,000 P.S.I. A COMPRESSED FREE FROM WATER CONTAINING ABOUT 5 TO 100 PERCENT CAO AND THE REMAINDER MGO, WHERE THE COMPONENTS OF SAID COMPOSITION ARE SELECTED FROM THE GROUP CONSISTING OF HIGH PURITY CALCINED LIME, HIGH PURITY CALCINED DOLOMITE, AND CAUSTIC CALCINED MAGNESIA, AND PASSING THE SAID BODIES TO A FURNACE AND HEATING THEM TO A TEMPERTURE OF AT LEAST 3400*F. TO PRODUCE A DEAD BURNED PRODUCT OF HIGH DENSITY.
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |