Patent US3196193A successfully refreshed from Google Patents.
US3196193A
Expired / Lapsed
US
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Firing of lime and dolomite shapes
Assignee: Harbison Walker Refractories Co
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Filing: 1963-08-26
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Granted: 1965-07-20
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Expires: 1983-08-26
Abstract
No abstract record available.
Inventors
- 👤 Davies Ben
- 👤 Wicken Oscar Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:15
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/01; C04B35/03; C04B35/057; C04B35/06; Y; Y10; Y10S; Y10S264/00; Y10S264/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE PROCESS OF PREPARING A BURNED REFRACTORY SHAPE FROM DEAD BURNED DOLOMITE GRAIN WHICH COMPRISES PREPARING A BATCH OF DEAD BURNED DOLOMITE GRAIN WHICH IS MAINTAINED AT A TEMPERATURE OF ABOVE ABOUT 212*F., AND FORMING THIS HEATED BATCH INTO SHAPES, PLACING THE HEATED SHAPES ON KILN CARS WHILE ASSURING NO FACE TO FACE CONTACT BETWEEN SAID SHAPES, MOVING THE LOADED CAR INTO AN INITIAL KILN TREATMENT STAGE, IN WHICH THE SHAPES ARE HEATED TO A TEMPERATURE OF AT LEAST ABOUT 1000*F. IN A DESICCATING ATMOSPHERE AT A TEMPERATURE RATE SLOW ENOUGH TO ASSURE NO CRACKING, REMOVING THE CAR AND SHAPES FROM THE DESICCATING ATMOSPHERE AND MOVING THEM TO A SECOND STAGE WHILE THEY ARE STILL AT LEAST ABOUT 1000*F., FIRING SAID SHAPES IN THE SECOND STAGE TO A TEMPERATURE OF AT LEAST
Claim 2
Dependent Claim
132 words
THE PROCESS OF PREPARING A BURNED REFRACTORY SHAPE FROM DEAD BURNED DOLOMITE GRAIN WHICH COMPRISES PREPARING A BATCH OF DEAD BURNED DOLOMITE GRAIN WHICH IS MAINTAINED AT A TEMPERATURE OF ABOVE ABOUT 212*F., AND FORMING THIS HEATED BATCH INTO SHAPES, PLACING THE HEATED SHAPES ON KILN CARS WHILE ASSURING NO FACE TO FACE CONTACT BETWEEN SAID SHAPES, MOVING THE LOADED CAR INTO AN INITIAL KILN TREATMENT STAGE, IN WHICH THE SHAPES ARE HEATED TO A TEMPERATURE OF AT LEAST ABOUT 1000*F. IN A DESICCATING ATMOSPHERE AT A TEMPERATURE RATE SLOW ENOUGH TO ASSURE NO CRACKING, REMOVING THE CAR AND SHAPES FROM THE DESICCATING ATMOSPHERE AND MOVING THEM TO A SECOND STAGE WHILE THEY ARE STILL AT LEAST ABOUT 1000*F., FIRING SAID SHAPES IN THE SECOND STAGE TO A TEMPERATURE OF AT LEAST
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |