US4135568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shield for electromagnetic continuous casting system
Assignee: Reynolds Metals Co
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Filing: 1977-11-15
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Granted: 1979-01-23
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Expires: 1997-11-15
Abstract
Abstract A shield to be used in an electromagnetic continuous casting system comprises segmental strips forming a segmented, tubularly-shaped shield encircling a casting station and being positioned between molten metal being cast and an electromagnetic inductor.
Inventors
- 👤 Carson L. Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:51
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/01; B22D11/015
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
187 words
A shield to be used in an electromagnetic continuous casting system of the type including a loop-shaped electromagnetic-inductor positioned about a casting station for shaping molten metal at said casting station as said molten metal is cooled, said shield comprising: an electrically insulative body including a mounting means for mounting said electrically insulative body at said casting station; a plurality of metallic segments attached to said insulative body, but electrically insulated from one another, said metallic segments being arranged to generally form a segmented, tubularly-shaped shield made up of said metallic segments, said segmented shield encircling said casing station to be positioned between said molten metal and said electromagnetic inductor when said continuous casting system is casting; said insulative body including a single flat sheet of insulative material having a hole therein and wherein said metallic segments are attached at one end portion only of each of said segments to the interior surface of said hole in said insulative body to depend laterally away from said flat insulative body and to form said tubular shape having a cross sectional area which is the shape of said hole.
Claim 2
Dependent Claim
187 words
A shield to be used in an electromagnetic continuous casting system of the type including a loop-shaped electromagnetic-inductor positioned about a casting station for shaping molten metal at said casting station as said molten metal is cooled, said shield comprising: an electrically insulative body including a mounting means for mounting said electrically insulative body at said casting station; a plurality of metallic segments attached to said insulative body, but electrically insulated from one another, said metallic segments being arranged to generally form a segmented, tubularly-shaped shield made up of said metallic segments, said segmented shield encircling said casing station to be positioned between said molten metal and said electromagnetic inductor when said continuous casting system is casting; said insulative body including a single flat sheet of insulative material having a hole therein and wherein said metallic segments are attached at one end portion only of each of said segments to the interior surface of said hole in said insulative body to depend laterally away from said flat insulative body and to form said tubular shape having a cross sectional area which is the shape of said hole.
Claim 3
Dependent Claim
18 words
A shield as in claim 1 wherein said metallic segments are spaced from one another about said hole.
Claim 4
Dependent Claim
16 words
A shield as in claim 1 wherein said metallic segments overlap one another at edges thereof.
Claim 5
Dependent Claim
21 words
A shield as in claim 1 wherein said metallic segments are approximately 0.010 inches thick and do not have tapered ends.
Claim 6
Dependent Claim
19 words
A shield as in claim 1 wherein said metallic segments are approximately 1/4 inch thick and have tapered ends.
Claim 7
Dependent Claim
155 words
Apparatus for continuously casting an elongated ingot comprising: a molten-metal supply means for continuously supplying molten metal to a first end of said ingot at a casting station; a means for moving a second end of said ingot away from said supply means; an electromagnetic inductor positioned at said casting station for producing an electromagnetic field in said molten metal to generate forces in said molten metal; and a shield having a portion thereof mounted between said electromagnetic inductor and said ingot, said shield comprising: an electrically insulative body including a mounting means for mounting said electrically insulative body at said casting station; a plurality of metallic segments attached to said insulative body, but electrically insulated from one another, said metallic segments being arranged to generally form a segmented, tubularly-shaped shield made up of said metallic segments, said segmented shield encircling said molten metal, and being positioned between said molten metal and said electromagnetic inductor.
Claim 8
Dependent Claim
155 words
Apparatus for continuously casting an elongated ingot comprising: a molten-metal supply means for continuously supplying molten metal to a first end of said ingot at a casting station; a means for moving a second end of said ingot away from said supply means; an electromagnetic inductor positioned at said casting station for producing an electromagnetic field in said molten metal to generate forces in said molten metal; and a shield having a portion thereof mounted between said electromagnetic inductor and said ingot, said shield comprising: an electrically insulative body including a mounting means for mounting said electrically insulative body at said casting station; a plurality of metallic segments attached to said insulative body, but electrically insulated from one another, said metallic segments being arranged to generally form a segmented, tubularly-shaped shield made up of said metallic segments, said segmented shield encircling said molten metal, and being positioned between said molten metal and said electromagnetic inductor.
Claim 9
Dependent Claim
79 words
An apparatus as in claim 6 wherein said insulative body includes a single flat sheet of insulative material having a hole therein and wherein said metallic segments are attached at one end portion only of each of said segments to the interior surface of said hole in said insulative body to depend laterally away from said insulative body and to form said tubular shape having a cross sectional area which is the same as the shape of said hole.
Claim 10
Dependent Claim
18 words
An apparatus as in claim 7 wherein said metallic segments are spaced from one another about said hole.
Claim 11
Dependent Claim
16 words
An apparatus as in claim 7 wherein said metallic segments overlap one another at edges thereof.
Claim 12
Dependent Claim
15 words
An apparatus as in claim 6 wherein said metallic segments are approximately 0.010 inches thick.
Claim 13
Dependent Claim
15 words
An apparatus as in claim 10 wherein said metallic segments do not have tapered ends.
Claim 14
Dependent Claim
18 words
An apparatus as in claim 6 wherein said segments are approximately 1/4 inch thick and have tapered ends.
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) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |