Patent US4783394A successfully refreshed from Google Patents.
US3735802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting machine with low profile conveyor
Assignee: Individual
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Filing: 1971-01-26
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Granted: 1973-05-29
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Expires: 1991-01-26
Abstract
Abstract Disclosed herein is a continuous casting machine having a casting wheel with a groove closed by a band to form a casting mold and including a conveying means for conveying cast metal between the casting mold and a substantially horizontal path in a manner that reduces voids in the cast metal, that reduces the concentrations of dissolved gases in the cast metal, that increases the production rate of the casting machine, and that facilitates the initial removal of the cast metal from the casting mold while at the same time providing for convenient and efficient pouring of molten metal into the casting mold. Specifically, the conveying means in the casting machine disclosed is a low-profile conveyor positioned and shaped to place the cast metal leaving the casting mold in a predetermined arcuate path which provides for relatively little vertical displacement of the cast metal above the casting wheel, which extends the length of the portion of the circumference of the casting wheel which may be used as the casting mold, which is a path into which cast metal leaving the casting mold will initially pass with a minimum of manual guidance, and which provides for the passage of the cast metal over pouring apparatus used for pouring molten metal into the casting mold. Also disclosed herein are a method of casting molten metal and a method of manufacturing a casting machine which embody the same invention as the casting machine.
Inventors
- 👤 E C Chia
- 👤 G C Ward
- 👤 G E Lenaeus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:59
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0602
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
142 words
In a casting machine, a rotatable casting wheel having a peripheral groove, a band closing a portion of said groove to form a casting mold, pouring means for pouring molten metal into said casting mold, means for cooling said molten metal within said casting mold in order to obtain a solidified cast metal, said cast metal retaining a molten core despite said cooling means, removal means for removing said cast metal from said casting mold while said cast metal still retains said molten core at its center, means for conveying said cast metal from said mold along a path above said casting wheel while simultaneously restricting the elevation of said cast metal in said path, said elevation restriction being to such an extent that gases dissolved in molten copper would not go out of solution prior to solidification of said molten core.
Claim 2
Dependent Claim
142 words
In a casting machine, a rotatable casting wheel having a peripheral groove, a band closing a portion of said groove to form a casting mold, pouring means for pouring molten metal into said casting mold, means for cooling said molten metal within said casting mold in order to obtain a solidified cast metal, said cast metal retaining a molten core despite said cooling means, removal means for removing said cast metal from said casting mold while said cast metal still retains said molten core at its center, means for conveying said cast metal from said mold along a path above said casting wheel while simultaneously restricting the elevation of said cast metal in said path, said elevation restriction being to such an extent that gases dissolved in molten copper would not go out of solution prior to solidification of said molten core.
Claim 3
Dependent Claim
28 words
The apparatus of claim 1, and further comprising said elevation restriction being to such an extent that said molten core does not move downwardly within said cast metal.
Claim 4
Dependent Claim
50 words
The invention of claim 1 in which said molten metal is copper, and in which said molten metal is poured into said casting mold at an entry end of said casting mold, and in which the elevation of said path does not exceed approximately 4 feet above said entry end.
Claim 5
Dependent Claim
142 words
In a casting machine, a rotatable casting wheel having a peripheral groove, a band closing a portion of said groove to form a casting mold, pouring means for pouring molten metal into said casting mold, means for cooling said molten metal within said casting mold in order to obtain a solidified cast metal, said cast metal retaining a molten core in spite of said cooling means, removal means for removing said cast metal from said casting mold while said cast metal still retains said molten core at its center, means for conveying said cast metal from said mold along a path above said casting wheel while simultaneously restricting the elevation of said cast metal in said path, said elevation restriction being such that a molten core of copper would not move downwardly within said cast metal when the cast metal is copper.
Claim 6
Dependent Claim
142 words
In a casting machine, a rotatable casting wheel having a peripheral groove, a band closing a portion of said groove to form a casting mold, pouring means for pouring molten metal into said casting mold, means for cooling said molten metal within said casting mold in order to obtain a solidified cast metal, said cast metal retaining a molten core in spite of said cooling means, removal means for removing said cast metal from said casting mold while said cast metal still retains said molten core at its center, means for conveying said cast metal from said mold along a path above said casting wheel while simultaneously restricting the elevation of said cast metal in said path, said elevation restriction being such that a molten core of copper would not move downwardly within said cast metal when the cast metal is copper.
Claim 7
Dependent Claim
12 words
The invention of claim 4 in which said molten metal is copper.
Claim 8
Dependent Claim
141 words
In a casting machine, a rotatable casting wheel having a peripheral groove, a band closing a portion of said groove to form a casting mold, A bar conveyor extending over and above said casting wheel, pouring means for pouring molten metal into an entry end of said casting mold, means for cooling said molten metal within said casting mold in order to obtain solidified cast metal, means positioning said band in such a position that cast metal in said groove is prevented from leaving said groove for said bar conveyor until said cast metal is in an arcuate path extending over and above said casting wheel, said positioning means preventing said cast metal from leaving said groove for said bar conveyor prior to attaining a point which is at an angle of at least 17* from a vertical line of reference.
Claim 9
Dependent Claim
141 words
In a casting machine, a rotatable casting wheel having a peripheral groove, a band closing a portion of said groove to form a casting mold, A bar conveyor extending over and above said casting wheel, pouring means for pouring molten metal into an entry end of said casting mold, means for cooling said molten metal within said casting mold in order to obtain solidified cast metal, means positioning said band in such a position that cast metal in said groove is prevented from leaving said groove for said bar conveyor until said cast metal is in an arcuate path extending over and above said casting wheel, said positioning means preventing said cast metal from leaving said groove for said bar conveyor prior to attaining a point which is at an angle of at least 17* from a vertical line of reference.
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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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |