US2676892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making unicellular spherulized clay particles and articles and composition thereof
Assignee: Kanium Corp
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Filing: 1953-11-13
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Granted: 1954-04-27
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Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Jerome D Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/004; Y; Y10; Y10S; Y10S264/00; Y10S264/63; Y10S425/00; Y10S425/101; Y10S521/00; Y10S521/921
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
138 words
THE METHOD OF SPHERULIZING AND EXPANDING A CLAY SHALE, WHICH COMPRISES SUBDIVIDING SAID SHALE INTO PARTICLES OF A SIZE RANGING BETWEEN 35 AND 100 MESH, FEEDING SAID PARTICLES IN DISCRETE FROM INTO A FLOWING STREAM OF A COMBUSTIBLE GAS, BURNING SAID GAS TO FORM A DOWNWARDLY DIRECTED FLAME HAVING A TEMPERATURE OF BETWEEN 2500 AND 3500* F., LARGELY CONFINING THE GASES OF COMBUSTION WITHIN AN ENCLOSED ZONE COMPARATIVELY FREE OF EDDY CURRENTS THAT EXPANDS IN VOLUME IN THE DIRECTION A FLOW OF SAID GASES, INTRODUCING SAID DISCRETE PARTICLES SUSPENDED IN SAID COMBUSTIBLE GAS INTO THE CENTER OF SAID FLAME ZONE TO PASS THERETHROUGH AND FREELY FALL INTO A COOLER ZONE THEREBEYOND, THE TIME OF EXPOSURE OF THE PARTICLES TO THE FLAME TEMPERATURE BEING SUFFICIENT TO SUBSTANTIALLY COMPLETELY FUSE THE SAME AND EFFECT SUBSTANTIALLY MAXIMUM EXPANSION THEREOF TO UNI-
Claim 2
Independent Claim
138 words
THE METHOD OF SPHERULIZING AND EXPANDING A CLAY SHALE, WHICH COMPRISES SUBDIVIDING SAID SHALE INTO PARTICLES OF A SIZE RANGING BETWEEN 35 AND 100 MESH, FEEDING SAID PARTICLES IN DISCRETE FROM INTO A FLOWING STREAM OF A COMBUSTIBLE GAS, BURNING SAID GAS TO FORM A DOWNWARDLY DIRECTED FLAME HAVING A TEMPERATURE OF BETWEEN 2500 AND 3500* F., LARGELY CONFINING THE GASES OF COMBUSTION WITHIN AN ENCLOSED ZONE COMPARATIVELY FREE OF EDDY CURRENTS THAT EXPANDS IN VOLUME IN THE DIRECTION A FLOW OF SAID GASES, INTRODUCING SAID DISCRETE PARTICLES SUSPENDED IN SAID COMBUSTIBLE GAS INTO THE CENTER OF SAID FLAME ZONE TO PASS THERETHROUGH AND FREELY FALL INTO A COOLER ZONE THEREBEYOND, THE TIME OF EXPOSURE OF THE PARTICLES TO THE FLAME TEMPERATURE BEING SUFFICIENT TO SUBSTANTIALLY COMPLETELY FUSE THE SAME AND EFFECT SUBSTANTIALLY MAXIMUM EXPANSION THEREOF TO UNI-
Claim 3
Dependent Claim
36 words
A COMPOSITION COMPRISING A HYDRATION-SET TABLE TYPE CEMENTITIOUS MATERIAL AND 0.1-5 TIMES THE WEIGHT THEREOF OF THIN-WALLED UNICELLULAR SPHEROIDAL PARTICLES OF CLAY FORMED BY SPHERULIZING AND EXPANDING CLAY PARTICLES BY THE METHOD DEFINED THE CLAIM 1.
References Cited (Backward Citations)
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US2136096A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |