US3046164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal purification procedures
Assignee: Honeywell Inc
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Filing: 1955-10-18
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Granted: 1962-07-24
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Expires: 1975-10-18
Abstract
No abstract record available.
Inventors
- 👤 Charles A Domenicali
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:08
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/16; C30B13/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
THE METHOD OF PURIFYING A METALLIC BODY CONSISTING ESSENTIALLY OF A SUBSTANCE HAVING A THERMOELECTRIC COEFFICIENT OF ONE SIGN FOR AN ELECTRICAL CURRENT PASSING BETWEEN THE SOLID PHASE AND THE MOLTEN PHASE RESPECTIVELY AND A LIKE COEFFICIENT OF OPPOSITE SIGN FOR A CURRENT PASSING FROM THE MOLTEN PHASE TO THE SOLID PHASE, SAID METHOD INCLUDING FUSING A PORTION OF SAID BODY TO ESTABLISH AN INCREMENTAL MOLTEN ZONE IN SAID BODY AND MOVING SAID INCREMENTAL MOLTEN ZONE ALONG THE LENGTH OF SAID BODY THROUGH THE PELTIER THERMOELECTRIC INFLUENCE OF A UNIDIRECTIONAL ELECTRICAL CURRENT MOVING THROUGH SAID BODY, SAID CURRENT BEING OF A MAGNITUDE BELOW THAT REQUIRED TO FUSE SAID BODY DUE TO JOULE HEAT, THE PORTION OF SAID BODY ADJACENT TO SAID INCREMENTAL ZONE BEING HEATED TO AND MAINTAINED AT A TEMPERATURE WHICH IS JUST BELOW THE FUSION POINT THEREOF DURING PURIFICATION.
Claim 2
Independent Claim
141 words
THE METHOD OF PURIFYING A METALLIC BODY CONSISTING ESSENTIALLY OF A SUBSTANCE HAVING A THERMOELECTRIC COEFFICIENT OF ONE SIGN FOR AN ELECTRICAL CURRENT PASSING BETWEEN THE SOLID PHASE AND THE MOLTEN PHASE RESPECTIVELY AND A LIKE COEFFICIENT OF OPPOSITE SIGN FOR A CURRENT PASSING FROM THE MOLTEN PHASE TO THE SOLID PHASE, SAID METHOD INCLUDING FUSING A PORTION OF SAID BODY TO ESTABLISH AN INCREMENTAL MOLTEN ZONE IN SAID BODY AND MOVING SAID INCREMENTAL MOLTEN ZONE ALONG THE LENGTH OF SAID BODY THROUGH THE PELTIER THERMOELECTRIC INFLUENCE OF A UNIDIRECTIONAL ELECTRICAL CURRENT MOVING THROUGH SAID BODY, SAID CURRENT BEING OF A MAGNITUDE BELOW THAT REQUIRED TO FUSE SAID BODY DUE TO JOULE HEAT, THE PORTION OF SAID BODY ADJACENT TO SAID INCREMENTAL ZONE BEING HEATED TO AND MAINTAINED AT A TEMPERATURE WHICH IS JUST BELOW THE FUSION POINT THEREOF DURING PURIFICATION.
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) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |