Patent US3246070A successfully refreshed from Google Patents.
US3246070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consumable electrode vacuum arc furnace
Assignee: Consarc Corp
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Filing: 1963-04-02
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Granted: 1966-04-12
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Expires: 1983-04-02
Abstract
No abstract record available.
Inventors
- 👤 Patrick J Wooding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:55
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/08; H; H05; H05B; H05B7/00; H05B7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN AN ELECTRIC ARC MELTING FURNACE COMPRISING A HEAD HAVING AN ELECTRICALLY CONDUCTIVE WATER-COOLED RAM, A CRUCIBLE DISPOSED BELOW THE HORIZONTAL PLANE CONTAINING SAID HEAD, SAID CRUCIBLE BEING ADAPTED TO COOPERATE WITH SAID HEAD TO DEFINE A CHAMBER WITHIN WHICH AN ELECTRODE MAY BE MELTED UNDER CONTROLLED ATMOSPHERIC CONDITIONS, A HOLLOW CONDUIT COMMUNICATINGWITH SAID CHAMBER THROUGH SAID HEAD, MEANS COUPLED TO SAID CONDUIT FOR CONTROLLING THE ATMOSPHERE OF SAID CHAMBER BY WAY OF SAID CONDUIT, SAID HEAD BEING SUPPORTED BY SAID CONDUIT, AND MEANS FOR RAISING AND LOWERING SAID HEAD WITH RESPECT TO SAID CRUCIBLE, AND MOTOR MEANS TO ROTATE THE HEAD AND A SECTION OF THE CONDUIT CONNECTED THERETO ABOUT AN UPRIGHT AXIS SUBSTANTIALLY COINCIDING WITH A MAJOR PORTION OF SAID CONDUIT.
Claim 2
Dependent Claim
123 words
IN AN ELECTRIC ARC MELTING FURNACE COMPRISING A HEAD HAVING AN ELECTRICALLY CONDUCTIVE WATER-COOLED RAM, A CRUCIBLE DISPOSED BELOW THE HORIZONTAL PLANE CONTAINING SAID HEAD, SAID CRUCIBLE BEING ADAPTED TO COOPERATE WITH SAID HEAD TO DEFINE A CHAMBER WITHIN WHICH AN ELECTRODE MAY BE MELTED UNDER CONTROLLED ATMOSPHERIC CONDITIONS, A HOLLOW CONDUIT COMMUNICATINGWITH SAID CHAMBER THROUGH SAID HEAD, MEANS COUPLED TO SAID CONDUIT FOR CONTROLLING THE ATMOSPHERE OF SAID CHAMBER BY WAY OF SAID CONDUIT, SAID HEAD BEING SUPPORTED BY SAID CONDUIT, AND MEANS FOR RAISING AND LOWERING SAID HEAD WITH RESPECT TO SAID CRUCIBLE, AND MOTOR MEANS TO ROTATE THE HEAD AND A SECTION OF THE CONDUIT CONNECTED THERETO ABOUT AN UPRIGHT AXIS SUBSTANTIALLY COINCIDING WITH A MAJOR PORTION OF SAID CONDUIT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |