Patent US3168253A successfully refreshed from Google Patents.
US3168253A
Expired / Lapsed
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Method of grinding quicklime
Assignee: Taiheiyo Cement Corp
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Filing: 1962-07-09
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Granted: 1965-02-02
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Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 Masuda Senichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:00
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/04; B02C17/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF GRINDING QUICKLIME BY MEANS OF A BALL MILL COMPRISING THE STEP OF: CONTINUOUSLY ADDING WATER IN THE FORM SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SATURATED STEAM TO THE QUICKLIME TO BE GROUND, THE WEIGHT PROPORTION OF WATER ADDED TO QUICKLIME PER UNIT TIME LYING BETWEEN 0.1 AND 5% WHEREBY THE VIRTUAL ELECTRIC RESISTANCE OF THE QUICKLIME IS LOWERED TO SUCHEXTENT THAT ELECTRIC CHARGES GENERATED WITHIN THE MILL ARE CONSIDERABLY REDUCED THROUGH ELECTRIC CONDUCTION BUT GENERATION OF EXCESS HEAT OF REACTION DUE TO BONDING OF CAO AND H2O IS ESSENTIALLY AVOIDED.
Claim 2
Independent Claim
95 words
A METHOD OF GRINDING QUICKLIME BY MEANS OF A BALL MILL COMPRISING THE STEP OF: CONTINUOUSLY ADDING WATER IN THE FORM SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SATURATED STEAM TO THE QUICKLIME TO BE GROUND, THE WEIGHT PROPORTION OF WATER ADDED TO QUICKLIME PER UNIT TIME LYING BETWEEN 0.1 AND 5% WHEREBY THE VIRTUAL ELECTRIC RESISTANCE OF THE QUICKLIME IS LOWERED TO SUCHEXTENT THAT ELECTRIC CHARGES GENERATED WITHIN THE MILL ARE CONSIDERABLY REDUCED THROUGH ELECTRIC CONDUCTION BUT GENERATION OF EXCESS HEAT OF REACTION DUE TO BONDING OF CAO AND H2O IS ESSENTIALLY AVOIDED.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |