Patent US1401176A successfully refreshed from Google Patents.
Patent US3247557A successfully refreshed from Google Patents.
US3247557A
Expired / Lapsed
US
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Method of solidifying molten metal
Assignee: Reynolds Metals Co
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Filing: 1962-02-26
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Granted: 1966-04-26
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1036; B; B22; B22D; B22D27/00; B22D27/04; C22C1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF SOLIDIFYING A BODY OF MOLTEN METAL WHICH COMPRISES SUBMERGING WITHIN AND DISTRIBUTING SUBSTANTIALLY THROUGHOUT SAID MOLTEN METAL ABOUT 10 TO 50% SOLID PARTICALES, BASES ON THE WEIGHT OF THE BODY OF MOLTEN METAL TO BE SOLIDIFIED, SAID SOLID LPARTICLES HAVING A SIZE RANGE OF ABOUT 5 TO 6/ MESH AND A CAPACITY TO EXTRACT HEAT FROM THE MOLTEN METAL WITHOUT UNDERGOING A CHANGE OF STATE, SAID CAPACITY BEING SUFFICIENT TO PROVIDE A SUBSTANTIAL COOLING EFFECT SUFFICIENT TO CAUSE SOLIDIFICATION OF THE BODY OF MOLTEN METAL, SAID PARTICLES BEING ADDED TO THE MOLTEN METAL AT A RATE PRODUCING RAPID SOLIDIFICATION THROUGHOUT THE METAL WHILE MAINTAINING SUBSTANTIALLY ALL OF SAID PARTICLES IN THE SOLID STATE AND RECOVERING A FINEGRAINED CAST METALLIC STRUCTURE IN THE ENTIRE BODY OF METAL SO SOLIDIFIED.
Claim 2
Independent Claim
131 words
THE METHOD OF SOLIDIFYING A BODY OF MOLTEN METAL WHICH COMPRISES SUBMERGING WITHIN AND DISTRIBUTING SUBSTANTIALLY THROUGHOUT SAID MOLTEN METAL ABOUT 10 TO 50% SOLID PARTICALES, BASES ON THE WEIGHT OF THE BODY OF MOLTEN METAL TO BE SOLIDIFIED, SAID SOLID LPARTICLES HAVING A SIZE RANGE OF ABOUT 5 TO 6/ MESH AND A CAPACITY TO EXTRACT HEAT FROM THE MOLTEN METAL WITHOUT UNDERGOING A CHANGE OF STATE, SAID CAPACITY BEING SUFFICIENT TO PROVIDE A SUBSTANTIAL COOLING EFFECT SUFFICIENT TO CAUSE SOLIDIFICATION OF THE BODY OF MOLTEN METAL, SAID PARTICLES BEING ADDED TO THE MOLTEN METAL AT A RATE PRODUCING RAPID SOLIDIFICATION THROUGHOUT THE METAL WHILE MAINTAINING SUBSTANTIALLY ALL OF SAID PARTICLES IN THE SOLID STATE AND RECOVERING A FINEGRAINED CAST METALLIC STRUCTURE IN THE ENTIRE BODY OF METAL SO SOLIDIFIED.
References Cited (Backward Citations)
BE501141A
Cited
US84053A
Cited
CA558832A
Cited
US963973A
Cited
US1026344A
Cited
US1395269A
Cited
GB212725A
Cited
US2294170A
Cited
US2370279A
Cited
US2778079A
Cited
US2979793A
Cited
US3019497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |