US3247557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of solidifying molten metal
Assignee: Reynolds Metals Co
•
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 08:51
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.
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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) | 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 |