Patent US3819145A successfully refreshed from Google Patents.
US3819145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insert assembly for cast composite ingot
Assignee: Armco Inc
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Filing: 1972-07-17
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Granted: 1974-06-25
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Expires: 1992-07-17
Abstract
Abstract A core insert assembly for use in an ingot mold to produce a composite ingot having a thin stainless steel core. The core insert assembly comprises a plate of stainless steel with at least its major surfaces covered by metallic protective layers. Means are provided at the top of the core insert assembly by which it may be supported within the ingot mold and means are also provided to prevent excessive lateral movement of the core insert assembly within the ingot mold.
Inventors
- 👤 R Huber
- 👤 D Higbee
- 👤 J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:40
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
185 words
For use in an ingot mold from which a composite ingot having a thin stainless steel core shall be produced, said ingot mold having walls and resting on a stool which serves as a bottom, a rectangular core insert assembly having peripheral side, top and bottom edges and opposite faces, said core insert assembly comprising a rectangular plate of stainless steel with at least its major surfaces covered by rectangular, metallic, protective plates of substantially the same length and width dimensions, means connecting edge portions of said protective plates to maintain said plates in position on said stainless steel plate, means at said top edge of said core insert assembly to suspend said core insert assembly within said mold with said bottom edge of said assembly spaced from said mold bottom, said side edges of said assembly spaced from the adjacent ones of said mold walls and said assembly faces spaced from those mold walls they face, and means near the opposite end of said core insert assembly to prevent excessive movement of said assembly faces toward and away from said mold walls they face.
Claim 2
Dependent Claim
185 words
For use in an ingot mold from which a composite ingot having a thin stainless steel core shall be produced, said ingot mold having walls and resting on a stool which serves as a bottom, a rectangular core insert assembly having peripheral side, top and bottom edges and opposite faces, said core insert assembly comprising a rectangular plate of stainless steel with at least its major surfaces covered by rectangular, metallic, protective plates of substantially the same length and width dimensions, means connecting edge portions of said protective plates to maintain said plates in position on said stainless steel plate, means at said top edge of said core insert assembly to suspend said core insert assembly within said mold with said bottom edge of said assembly spaced from said mold bottom, said side edges of said assembly spaced from the adjacent ones of said mold walls and said assembly faces spaced from those mold walls they face, and means near the opposite end of said core insert assembly to prevent excessive movement of said assembly faces toward and away from said mold walls they face.
Claim 3
Dependent Claim
51 words
The structure claimed in claim 1 wherein said suspension means comprise at least one arm projecting upwardly from said top edge of said core insert assembly and terminating in an elongated member perpendicular thereto, said last named member being of a length sufficient to overlie the top edges of said mold.
Claim 4
Dependent Claim
49 words
The structure claimed in claim 1 wherein said means to prevent excessive lateral movement of assembly faces toward and away from the adjacent mold walls comprise at least one pair of members, each member of said pair projecting perpendicularly from one of said faces of said core insert assembly.
Claim 5
Dependent Claim
18 words
The structure claimed in claim 1 wherein said metallic protective plates are Anodic to said stainless steel plate.
Claim 6
Dependent Claim
71 words
The structure claimed in claim 1 wherein said positioning means comprise a pair of arms in parallel spaced relationship affixed to said top edge of said core insert assembly and projecting upwardly therefrom, each of said arms terminating in an elongated member perpendicular thereto and of a length sufficient to overlie the top edges of said mold, and means to secure said elongated members to the top edges of said mold.
Claim 7
Dependent Claim
20 words
The structure claimed in claim 2 including means to secure said elongated member to said top edges of said mold.
Claim 8
Dependent Claim
61 words
The structure claimed in claim 1 wherein said connecting means comprise a plurality of strap-like metallic members spaced about the edges of said core insert assembly, each of said connecting members extending transversely of and about its respective edge of said core insert assembly with the ends of said connecting member being affixed to adjacent portions of said protective metallic plates.
Claim 9
Dependent Claim
66 words
The structure claimed in claim 1 wherein said connecting means comprise a plurality of metallic strips of the same material as said protective metallic plates, said strips extending longitudinally of the edges of said core insert assembly and being welded to adjacent edges of both of said protective metallic plates whereby said stainless steel plate is substantially encased by said strips and said protective metallic plates.
Claim 10
Dependent Claim
41 words
The structure claimed in claim 8 wherein said strips are discontinuous along the top edge of said core insert assembly forming at least one gap for the escape of gases from between said stainless steel plate and said protective metallic plates.
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) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |