US3194656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making composite articles
Assignee: Crucible Steel Company of America
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Filing: 1961-08-10
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Granted: 1965-07-13
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Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Milton B Vordahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1036; C22C1/1047; C22C1/1052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
A METHOD OF MAKING SHAPED METALLIC ARTICLES HAVING A FINE GRAINED MICROSTRUCTURE AND EXHIBITING IMPROVED HARDNESS AND COMPRISING AN ALLOY CONTAINING A MATRIX METAL AND AT LEAST ONE HIGH MELTING POINT COMPOUND, COMPRISING: PREPARING IN A FORM AN ADMIXTURE OF AT LEAST TWO SUBSTANCES, THE ONE SUBSTANCE CONSISTING OF A MOLTEN ALLOY, SAID ALLOY HAVING A MELTING POINT LOWER THAN THAT OF SAID MATRIX METAL, AND THE OTHER SUBSTANCE COMPRISING AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF A NON-METAL AND AN ALLOY THEREOF, SAID SUBSTANCES PROVIDING ALL OF THE ESSENTIAL COMPONENTS OF SAID HIGH MELTING POINT COMPOUND AND IN SUCH AMOUNT AS TO RESULT IN A SUBSTANTIAL INCREASE IN THE MELTING POINT OF THE MASS WHEN REACTION BETWEEN COMPONENTS IN DIFFERENT ONES OF SAID SUBSTANCES OCCURS, SAID SUBSTANCES BEING SO COMPOSED INDIVIDUALLY THAT EACH CONTAINS NO MORE THAN A RELATIVELY SMALL AMOUNT OF ALL OF SAID COMPONENTS; THE ENERGY RELEASED FROM A CHEMICAL REACTION CAUSING FORMATION OF SAID COMPOUND BY CHEMICAL REACTION OF COMPONENTS IN SAID SUBSTANCES BEING SUCH IN RELATION TO THE AMOUNTS AND HEAT CAPACITY OF MATERIALS PRESENT AS TO RAISE THE TEMPERATURE OF THE SYSTEM TO A TEMPERATURE NOT EXCEEDING THE MELTING POINT OF THE MATRIX METAL; AND MAINTAINING THE TEMPERATURE OF SAID ADMIXTURE SUBSTANTIALLY LESS THAN THE MELTING POINT OF SAID MATRIX METAL UNTIL SOLIDIFICATION OF SAID MASS OCCURS.
Claim 2
Independent Claim
226 words
A METHOD OF MAKING SHAPED METALLIC ARTICLES HAVING A FINE GRAINED MICROSTRUCTURE AND EXHIBITING IMPROVED HARDNESS AND COMPRISING AN ALLOY CONTAINING A MATRIX METAL AND AT LEAST ONE HIGH MELTING POINT COMPOUND, COMPRISING: PREPARING IN A FORM AN ADMIXTURE OF AT LEAST TWO SUBSTANCES, THE ONE SUBSTANCE CONSISTING OF A MOLTEN ALLOY, SAID ALLOY HAVING A MELTING POINT LOWER THAN THAT OF SAID MATRIX METAL, AND THE OTHER SUBSTANCE COMPRISING AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF A NON-METAL AND AN ALLOY THEREOF, SAID SUBSTANCES PROVIDING ALL OF THE ESSENTIAL COMPONENTS OF SAID HIGH MELTING POINT COMPOUND AND IN SUCH AMOUNT AS TO RESULT IN A SUBSTANTIAL INCREASE IN THE MELTING POINT OF THE MASS WHEN REACTION BETWEEN COMPONENTS IN DIFFERENT ONES OF SAID SUBSTANCES OCCURS, SAID SUBSTANCES BEING SO COMPOSED INDIVIDUALLY THAT EACH CONTAINS NO MORE THAN A RELATIVELY SMALL AMOUNT OF ALL OF SAID COMPONENTS; THE ENERGY RELEASED FROM A CHEMICAL REACTION CAUSING FORMATION OF SAID COMPOUND BY CHEMICAL REACTION OF COMPONENTS IN SAID SUBSTANCES BEING SUCH IN RELATION TO THE AMOUNTS AND HEAT CAPACITY OF MATERIALS PRESENT AS TO RAISE THE TEMPERATURE OF THE SYSTEM TO A TEMPERATURE NOT EXCEEDING THE MELTING POINT OF THE MATRIX METAL; AND MAINTAINING THE TEMPERATURE OF SAID ADMIXTURE SUBSTANTIALLY LESS THAN THE MELTING POINT OF SAID MATRIX METAL UNTIL SOLIDIFICATION OF SAID MASS OCCURS.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |