Patent US3872598A successfully refreshed from Google Patents.
US3872598A
Expired / Lapsed
US
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Apparatus for measuring the wall thickness of a solidifying case body in casting hot liquid metal in a mould
Assignee: Voestalpine AG
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Filing: 1972-08-25
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Granted: 1975-03-25
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Expires: 1992-08-25
Abstract
Abstract The invention relates to an apparatus for measuring the wall thickness of a solidifying cast body in casting hot liquid metal in a mould. The apparatus comprises a rod-shaped sensor which is movably arranged above the mould in a manner that it may be introduced into said mould and adjusted to touch a wall of the solidifying cast body, and on said sensor a means for indicating the adjustment path which is proportional to the wall thickness.
Inventors
- 👤 Ernst Bachner
- 👤 Herbert Bumberger
- 👤 Rudolf Hoscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:34
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/02; G01B5/06; B; B22; B22D; B22D11/00; B22D11/16; B22D11/18; B22D11/188; B22D2/00; B22D2/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
142 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising a heat resistant sensor rod having a melting point higher than the melting point of steel and being substantially unwetted by liquid metals, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed, and means for maintaining said sensor rod in continuous contact with the one wall of the shell so that the thickness of the shell is continuously measured during continuous casting of a bar shell.
Claim 2
Independent Claim
142 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising a heat resistant sensor rod having a melting point higher than the melting point of steel and being substantially unwetted by liquid metals, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed, and means for maintaining said sensor rod in continuous contact with the one wall of the shell so that the thickness of the shell is continuously measured during continuous casting of a bar shell.
Claim 3
Independent Claim
140 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising a heat resistant sensor rod having a portion thereof in contact with the hot liquid metal, the portion in contact with the hot liquid metal having a melting point higher than the melting point of steel and comprising 40-80% by volume of metallic molybdenum, remainder zirconium oxide, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, and means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed to determine the thickness of the shell.
Claim 4
Independent Claim
140 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising a heat resistant sensor rod having a portion thereof in contact with the hot liquid metal, the portion in contact with the hot liquid metal having a melting point higher than the melting point of steel and comprising 40-80% by volume of metallic molybdenum, remainder zirconium oxide, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, and means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed to determine the thickness of the shell.
Claim 5
Independent Claim
126 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising a heat resistant sensor rod having a melting point higher than the melting point of steel, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, said holding means includes means mounting said sensor rod for axial movement relative to said holding means, and means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed to determine the thickness of the shell.
Claim 6
Independent Claim
126 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising a heat resistant sensor rod having a melting point higher than the melting point of steel, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, said holding means includes means mounting said sensor rod for axial movement relative to said holding means, and means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed to determine the thickness of the shell.
Claim 7
Independent Claim
223 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising: a heat resistant sensor rod having a melting point higher than the melting point of steel, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, said holding means comprising a retaining means for pivotally holding said sensor rod at a point along its length so that it may be rotated about an axis passing through said point to touch the inner wall of the cast shell, said pivotal retaining means mounting said sensor rod for axial displacement to change the point along the length of the rod at which it is held, a frame fastened above the mould, and a bearing means for rotatably connecting said pivotal retaining means to said frame above the mould, said bearing means allowing rotation of said pivotal retaining means about a horizontal axis perpendicular to axis of the pivotal motion of said rod, and means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed to determined the thickness of the shell.
Claim 8
Independent Claim
223 words
An apparatus for measuring the wall thickness of a solidifying cast shell formed in casting hot liquid metal into a mould, comprising: a heat resistant sensor rod having a melting point higher than the melting point of steel, holding means for pivotally holding said sensor rod above the mould in such a manner that it may be introduced into the mould from above and adjusted so that one end touches at least one inner wall of the solidifying cast shell, said holding means comprising a retaining means for pivotally holding said sensor rod at a point along its length so that it may be rotated about an axis passing through said point to touch the inner wall of the cast shell, said pivotal retaining means mounting said sensor rod for axial displacement to change the point along the length of the rod at which it is held, a frame fastened above the mould, and a bearing means for rotatably connecting said pivotal retaining means to said frame above the mould, said bearing means allowing rotation of said pivotal retaining means about a horizontal axis perpendicular to axis of the pivotal motion of said rod, and means for indicating the change in pivotal displacement of said one end of said sensor rod as the shell is formed to determined the thickness of the shell.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |