US3610318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroslag ingot production
Assignee: Associated Electrical Industries Ltd
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Filing: 1968-01-30
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Granted: 1971-10-05
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Expires: 1988-01-30
Abstract
Abstract The electroslag process of ingot production in a mold is improved by providing bottom contact to the forming ingot by means of a stub or spigot which is electrically insulated from the mold base and also has electrical connection made to it in a manner electrically insulated from the mold base.
Inventors
- 👤 Adrian Paul Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:45
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
An electroslag mold apparatus comprising, in combination: a. a mold base, b. a mold wall upstanding from said mold base and forming a mold cavity, c. an opening in said mold base, said opening having a cross section smaller than the internal cross section of said mold cavity, d. an annulus positioned in said opening, said annulus being formed of electrically insulative material, e. an electroconductive stub positioned within said annulus and electrically insulated from said mold base by said annulus, f. means for establishing electrical connection to said stub, and g. clamp means supported by said base.
Claim 2
Dependent Claim
98 words
An electroslag mold apparatus comprising, in combination: a. a mold base, b. a mold wall upstanding from said mold base and forming a mold cavity, c. an opening in said mold base, said opening having a cross section smaller than the internal cross section of said mold cavity, d. an annulus positioned in said opening, said annulus being formed of electrically insulative material, e. an electroconductive stub positioned within said annulus and electrically insulated from said mold base by said annulus, f. means for establishing electrical connection to said stub, and g. clamp means supported by said base.
Claim 3
Dependent Claim
16 words
The apparatus of claim 1 and including electrically insulating material between said clamp and said base.
Claim 4
Dependent Claim
12 words
The apparatus of claim 1 and including water-cooling means for said clamp.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1 and including electrically conductive means mounted on said clamp.
Claim 6
Dependent Claim
14 words
The apparatus of claim 1 wherein said stub and said clamp are electrically connected.
Claim 7
Dependent Claim
15 words
The apparatus of cLaim 5 wherein said stub is formed in situ within said annulus.
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |