US4330328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for making a metal alloy
Assignee: Olin Corp
•
Filing: 1980-10-24
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Granted: 1982-05-18
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Expires: 2000-10-24
Abstract
Abstract A process and apparatus for producing a copper metal or alloy wherein a first material is added to a molten metal, consisting essentially of copper preferably in a furnace. After the first material is added, the molten metal is passed through a filtration device to remove particulate matter from the molten metal and/or reduce the oxygen content of the molten metal. After filtration, a second material is added to the molten metal.
Inventors
- 👤 Derek E. Tyler
- 👤 Harvey P. Cheskis
- 👤 Louis P. Stone
- 👤 Michael J. Pryor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:34
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/02; C22B9/023; C22B15/00; C22B15/0026; C22B15/006; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
116 words
A process for producing a copper metal or alloy from a source of molten metal consisting essentially of copper comprising: adding a first reactive material to said molten copper metal to react with oxygen in said molten copper metal to form oxide particles; providing a station for casting said molten copper metal and means for transferring said molten copper metal from said source to said casting station; filtering said molten copper metal passing through said transferring means to remove said oxide particles; and adding a second material which dissolves into said molten copper metal to said molten copper metal after the step of filtering and while said molten copper metal is still in said transferring means.
Claim 2
Dependent Claim
116 words
A process for producing a copper metal or alloy from a source of molten metal consisting essentially of copper comprising: adding a first reactive material to said molten copper metal to react with oxygen in said molten copper metal to form oxide particles; providing a station for casting said molten copper metal and means for transferring said molten copper metal from said source to said casting station; filtering said molten copper metal passing through said transferring means to remove said oxide particles; and adding a second material which dissolves into said molten copper metal to said molten copper metal after the step of filtering and while said molten copper metal is still in said transferring means.
Claim 3
Dependent Claim
30 words
The process of claim 1 wherein the step of adding said first reactive material further comprises adding said first reactive material while said molten copper metal is in said source.
Claim 4
Dependent Claim
30 words
The process of claim 1 further comprising providing a feed means and wherein the step of adding said second material further comprises adding said second material by said feed means.
Claim 5
Dependent Claim
29 words
The process of claim 3 wherein the step of adding said second material further comprises adding a powdered material and wherein said feed means comprises a wire feed means.
Claim 6
Dependent Claim
24 words
The process of claim 1 wherein the step of adding said second material comprises adding a second reactive material to the molten copper metal.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein said first reactive material comprises chromium.
Claim 8
Dependent Claim
13 words
The process of claim 5 or 6 wherein said second material comprises zirconium.
Claim 9
Independent Claim
112 words
An apparatus for producing a copper metal or alloy comprising: a source of molten metal consisting essentially of copper; a casting station; a transfer trough connecting said source and said casting station; means for adding a first reactive material to said molten copper metal; means for filtering said molten copper metal located in said transfer trough; after said first material has been added to said molten metal and means for adding a second material which dissolves into said molten copper metal to said molten copper metal while said molten copper metal is in said transfer trough and as soon as possible after said molten copper metal has passed through said filtering means.
Claim 10
Independent Claim
112 words
An apparatus for producing a copper metal or alloy comprising: a source of molten metal consisting essentially of copper; a casting station; a transfer trough connecting said source and said casting station; means for adding a first reactive material to said molten copper metal; means for filtering said molten copper metal located in said transfer trough; after said first material has been added to said molten metal and means for adding a second material which dissolves into said molten copper metal to said molten copper metal while said molten copper metal is in said transfer trough and as soon as possible after said molten copper metal has passed through said filtering means.
Claim 11
Dependent Claim
23 words
The apparatus of claim 8 wherein said first reactive material adding means comprises means for adding said first reactive material to said source.
Claim 12
Dependent Claim
20 words
The apparatus of claim 8 wherein said filtering means comprises means for removing particulate matter from said molten copper metal.
Claim 13
Dependent Claim
14 words
The apparatus of claim 10 wherein said filtering means comprises ceramic foam filtering means.
Claim 14
Dependent Claim
15 words
The apparatus of claim 8 wherein said second material adding means comprises wire feed means.
Claim 15
Dependent Claim
17 words
The apparatus of claim 12 wherein said wire feed means adds said second material in powdered form.
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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) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |