US3379818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric arc furnace
Assignee: Lectromelt Corp
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Filing: 1966-05-31
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Granted: 1968-04-23
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Peter J Wynne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:48
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/10; H05B7/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN AN ELECTRIC ARC FURNACE, THE COMBINATION OF, A SEALED FURNACE BODY, A CONSUMABLE ELECTRODE EXTENDING INTO SAID FURNACE BODY, ELECTRODE DRIVE MEANS COUPLED TO SAID ELECTRODE FOR MOVING THE SAME RELATIVE TO SAID FURNACE BODY, WEIGHING MEANS HAVING A MAXIMUM CAPACITY WHICH IS A FRACTION OF THE INITIAL WEIGHT OF SAID ELECTRODE, SAD WEIGHING MEANS BEING COUPLED BETWEEN SAID DRIVE MEANS AND SAID ELECTRODE SO THAT THE WEIGHT OF SAID ELECTRODE MAY BE DETERMINED, AND FIRST MEANS FOR SUPPORTING SAID ELECTRODE WHEN ITS WEIGHT IS IN EXCESS OF THE CAPACITY OF SAID WEIGHING MEANS.
Claim 2
Dependent Claim
95 words
IN AN ELECTRIC ARC FURNACE, THE COMBINATION OF, A SEALED FURNACE BODY, A CONSUMABLE ELECTRODE EXTENDING INTO SAID FURNACE BODY, ELECTRODE DRIVE MEANS COUPLED TO SAID ELECTRODE FOR MOVING THE SAME RELATIVE TO SAID FURNACE BODY, WEIGHING MEANS HAVING A MAXIMUM CAPACITY WHICH IS A FRACTION OF THE INITIAL WEIGHT OF SAID ELECTRODE, SAD WEIGHING MEANS BEING COUPLED BETWEEN SAID DRIVE MEANS AND SAID ELECTRODE SO THAT THE WEIGHT OF SAID ELECTRODE MAY BE DETERMINED, AND FIRST MEANS FOR SUPPORTING SAID ELECTRODE WHEN ITS WEIGHT IS IN EXCESS OF THE CAPACITY OF SAID WEIGHING MEANS.
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) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |