US3214265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making metal foam bodies
Assignee: Lor Corp
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Filing: 1963-03-11
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Granted: 1965-10-26
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 William S Fiedler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:58
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A METHOD OF MAKING A FOAMED METAL BODY COMPRISING THE STEPS OF PROVIDING A MOLTEN POOL OF METAL, ADVANCING AN ELONGATED MELTABLE METAL BODY CONTAINING A MATERIAL ADAPTED TO EFFECT FOAMING OF SAID MOLTEN POOL OF METAL THEREWITHIN SAID MELTABLE METAL BODY HAVING A LIQUID PHASE TEMPERATURE AT LEAST 100*C. HIGHER THAN ITS SOLID PHASE TEMPERATURE AND COMPRISING A TUBE OF THE SAME METAL AS THE METAL BEING FORMED, FORWARD INTO SAID POOL TO INTRODUCE FOAMING AGENT THEREINTO IN ACCORDANCE WITH THE ADVANCE OF SAID MELTABLE BODY TO FORM THEREBY A BODY OF MOLTEN METAL CONTAINING DISCRETE CELLULAR BUBBLES DISTRIBUTED THERETHROUGH THEN COOLING SAID BODY TO PROVIDE A METAL FOAM, SAID METAL BEING FOAMED HAVING A LIQUID PHASE TEMPERATURE AT LEAST 100C. HIGHER THAN ITS SOLID PHASE TEMPERATURE AND SAID POOL BEING MAINTAINED AT A TEMPERATURE BETWEEN SAID LIQUID PHASE TEMPERATURE AND SAID SOLID PHASE TEMPERATURE TO PROVIDE SUBSTANTIALLY REDUCED FLUIDITY OF SAID METAL.
Claim 2
Independent Claim
154 words
A METHOD OF MAKING A FOAMED METAL BODY COMPRISING THE STEPS OF PROVIDING A MOLTEN POOL OF METAL, ADVANCING AN ELONGATED MELTABLE METAL BODY CONTAINING A MATERIAL ADAPTED TO EFFECT FOAMING OF SAID MOLTEN POOL OF METAL THEREWITHIN SAID MELTABLE METAL BODY HAVING A LIQUID PHASE TEMPERATURE AT LEAST 100*C. HIGHER THAN ITS SOLID PHASE TEMPERATURE AND COMPRISING A TUBE OF THE SAME METAL AS THE METAL BEING FORMED, FORWARD INTO SAID POOL TO INTRODUCE FOAMING AGENT THEREINTO IN ACCORDANCE WITH THE ADVANCE OF SAID MELTABLE BODY TO FORM THEREBY A BODY OF MOLTEN METAL CONTAINING DISCRETE CELLULAR BUBBLES DISTRIBUTED THERETHROUGH THEN COOLING SAID BODY TO PROVIDE A METAL FOAM, SAID METAL BEING FOAMED HAVING A LIQUID PHASE TEMPERATURE AT LEAST 100C. HIGHER THAN ITS SOLID PHASE TEMPERATURE AND SAID POOL BEING MAINTAINED AT A TEMPERATURE BETWEEN SAID LIQUID PHASE TEMPERATURE AND SAID SOLID PHASE TEMPERATURE TO PROVIDE SUBSTANTIALLY REDUCED FLUIDITY OF SAID METAL.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |