US2582764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of carbon electrodes
Assignee: GREAT LAKES CARBON Corp
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Filing: 1948-05-28
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Granted: 1952-01-15
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Expires: 1968-05-28
Abstract
No abstract record available.
Inventors
- 👤 Bruce L Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:27
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/522; C04B35/528; C04B35/532; C25; C25B; C25B11/00; C25B11/04; C25B11/042; C25B11/043; C25C; C25C7/00; C25C7/02; H; H01; H01M; H01M4/00; H05; H05B; H05B31/00; H05B31/02; H05B31/06; H05B31/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A PROCESS FOR MAKING SHAPED CARBON BODIES WHICH COMPRISES FORMING A MIXTURE OF PARTICLES OF RAW, UNCALCINED COKE MADE BY COKING A HEAVY, LIQUIFIABLE, HYDROCARBON TO A VOLATILE CONTENT EXCLUSIVE OF WATER OF ABOUT 8% TO ABOUT 20%, AND A PLASTICIZER AGENT, SAID PLASTICIZING AGENT BEING LARGELY CONVERTED TO CARBON UNDER THE BAKING CONDITIONS AND BEING NEITHER SUBSTANTIALLY VAPORIZABLE NOR SUBSTANTIALLY THERMALLY DECOMPOSABLE BELOW 500* F., AT LEAST PARTIALLY ALLOYING SAID PLASTICIZING AGENT WITH SAID COKE PARTICLES TO CONVERT SAID COKE TO A MATERIAL WHICH IS PLASTIC UNDER APPLIED MECHANICAL PRESSURE BY HEATING SAID MIXTURE TO A TEMPERATURE OF ABOUT 100* F. TO ABOUT 400* F., SAID HEATING BEING DISCONTINUED BEFORE THE ALLOY FORMED IS RENDERED NON-PLASTIC; COMPRESSING THE HOT PLASTIC MATERIAL SO PRODUCED TO FORM A SHAPED BODY; AND BAKING SAID SHAPED BODY WITH A GRADUAL UPHEAT TO ABOUT 1000* F. TO 2000* F. TO CARBONIZE IT.
Claim 2
Dependent Claim
148 words
A PROCESS FOR MAKING SHAPED CARBON BODIES WHICH COMPRISES FORMING A MIXTURE OF PARTICLES OF RAW, UNCALCINED COKE MADE BY COKING A HEAVY, LIQUIFIABLE, HYDROCARBON TO A VOLATILE CONTENT EXCLUSIVE OF WATER OF ABOUT 8% TO ABOUT 20%, AND A PLASTICIZER AGENT, SAID PLASTICIZING AGENT BEING LARGELY CONVERTED TO CARBON UNDER THE BAKING CONDITIONS AND BEING NEITHER SUBSTANTIALLY VAPORIZABLE NOR SUBSTANTIALLY THERMALLY DECOMPOSABLE BELOW 500* F., AT LEAST PARTIALLY ALLOYING SAID PLASTICIZING AGENT WITH SAID COKE PARTICLES TO CONVERT SAID COKE TO A MATERIAL WHICH IS PLASTIC UNDER APPLIED MECHANICAL PRESSURE BY HEATING SAID MIXTURE TO A TEMPERATURE OF ABOUT 100* F. TO ABOUT 400* F., SAID HEATING BEING DISCONTINUED BEFORE THE ALLOY FORMED IS RENDERED NON-PLASTIC; COMPRESSING THE HOT PLASTIC MATERIAL SO PRODUCED TO FORM A SHAPED BODY; AND BAKING SAID SHAPED BODY WITH A GRADUAL UPHEAT TO ABOUT 1000* F. TO 2000* F. TO CARBONIZE IT.
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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |