US3271828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consumable electrode production of metal ingots
Assignee: Oregon Metallurgical Corp
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Filing: 1963-09-20
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Granted: 1966-09-13
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Shelton Stephen Matheson
- 👤 Poole Henry Gordon
- 👤 Wagy Frank Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:51
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/20; C22B4/00; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
IN A CONSUMABLE ELECTRODE METHOD OF FORMING METAL INGOTS FROM A METAL BODY AND A FLUX, WHEREIN AN INGOT MOLD IS SUPPORTED BESIDE A METAL BODY IN A POSITION TO COLLECT A POOL OF MOLTEN METAL ARC FUSED OFF FROM SAID BODY, THE METHOD COMPRISING ESTABLISHING A CONTROLLED NON-ATMOSPHERIC ENVIRONMENT EXTENDING FROM THE METAL BODY TO THE INGOT MOLD, WITH SAID ENVIRONMENT ESTABLISHED, ARC-FUSING OFF SUCCESSIVE PORTIONS OF SAID METAL BODY BY PASSING AN ELECTRIC ARC FROM SAID BODY TO SAID INGOT MOLD WITH SAID ARC PRODUCING A HEAT ZONE EXTENDING FROM THE BODY TO THE MOLD; CONCURRENTLY WITH THE ARCFUSING OF SAID BODY, ADDING PROGRESSIVELY SUCCESSIVE INCREMENTS OF FLUX TO SAID HEAT ZONE WITH SUCH FLUX MELTING AND FLOATING ON SAID MOLTEN POOL; CONCURRENTLY WITH THE PROGRESSIVE ADDITION OF SUCH FLUX, CONTINUOUSLY REMOVING THE FLUX FROM THE HEAT ZONE BY DISTRIBUTING THE FLUX WHILE MOLTEN AND WITH THE FLUX SEPARATED FROM THE METAL TO REGIONS SPACED OUTWARDLY OF THE HEAT ZONE, TO LEAVE AN AREA ON THE SURFACE OF THE MOLEN POOL CONTACTED BY THE ARC WHICH TENDS TO REMAIN FREE OF FLUX; AND WHILE ARC
Claim 2
Dependent Claim
187 words
IN A CONSUMABLE ELECTRODE METHOD OF FORMING METAL INGOTS FROM A METAL BODY AND A FLUX, WHEREIN AN INGOT MOLD IS SUPPORTED BESIDE A METAL BODY IN A POSITION TO COLLECT A POOL OF MOLTEN METAL ARC FUSED OFF FROM SAID BODY, THE METHOD COMPRISING ESTABLISHING A CONTROLLED NON-ATMOSPHERIC ENVIRONMENT EXTENDING FROM THE METAL BODY TO THE INGOT MOLD, WITH SAID ENVIRONMENT ESTABLISHED, ARC-FUSING OFF SUCCESSIVE PORTIONS OF SAID METAL BODY BY PASSING AN ELECTRIC ARC FROM SAID BODY TO SAID INGOT MOLD WITH SAID ARC PRODUCING A HEAT ZONE EXTENDING FROM THE BODY TO THE MOLD; CONCURRENTLY WITH THE ARCFUSING OF SAID BODY, ADDING PROGRESSIVELY SUCCESSIVE INCREMENTS OF FLUX TO SAID HEAT ZONE WITH SUCH FLUX MELTING AND FLOATING ON SAID MOLTEN POOL; CONCURRENTLY WITH THE PROGRESSIVE ADDITION OF SUCH FLUX, CONTINUOUSLY REMOVING THE FLUX FROM THE HEAT ZONE BY DISTRIBUTING THE FLUX WHILE MOLTEN AND WITH THE FLUX SEPARATED FROM THE METAL TO REGIONS SPACED OUTWARDLY OF THE HEAT ZONE, TO LEAVE AN AREA ON THE SURFACE OF THE MOLEN POOL CONTACTED BY THE ARC WHICH TENDS TO REMAIN FREE OF FLUX; AND WHILE ARC
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |