Patent US4895789A successfully refreshed from Google Patents.
Patent US3915693A successfully refreshed from Google Patents.
US3915693A
Expired / Lapsed
US
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Process, structure and composition relating to master alloys in wire or rod form
Assignee: Individual
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Filing: 1972-06-21
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Granted: 1975-10-28
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Expires: 1992-06-21
Abstract
Abstract Process, structure and composition relating to master alloys in wire or rod form consisting of a hollow tube (which may itself be one of the alloy constituents) containing as granular filler one or more other alloy constituents and/or other substance as substances useful in the master alloy in question. The invention contemplates a filled tube master alloy wire or rod, where the desired alloy element or elements may typically comprise the tube material itself as all or part of a desired alloy element, and granular filler material in the form of a pure metal or suitable alloy, or a blend of pure metals or suitable alloys. The master alloys in wire or rod form may contain or enclose all or part of the desired grain refining, inoculating, deoxidizing or alloy constituent or constituents as pulverized metal or alloy within a tube of aluminum, mild steel, or other suitable metal or alloy.
Inventors
- 👤 Robert T C Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:20
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22C1/03; C21; C21C; C21C1/00; C21C1/10; C21C1/105; C21C7/00; C21C7/0056; C21C7/04; C21C7/06; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12097
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
94 words
A composite structure of a synergistic grain-refining master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of low carbon steel and the filler material of substantially 30 to 60% Si, 5 to 15% Mn, 5 to 20% Ce plus La, 0 to 15% Ca plus Ba, 1 to 6% of Cb plus Ta, 1 to 6% of V, 1 to 6% Zr, 1 to 6% of Ti, 1 to 3% Al, 0.04 to 0.15% B and balance Fe.
Claim 2
Dependent Claim
94 words
A composite structure of a synergistic grain-refining master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of low carbon steel and the filler material of substantially 30 to 60% Si, 5 to 15% Mn, 5 to 20% Ce plus La, 0 to 15% Ca plus Ba, 1 to 6% of Cb plus Ta, 1 to 6% of V, 1 to 6% Zr, 1 to 6% of Ti, 1 to 3% Al, 0.04 to 0.15% B and balance Fe.
Claim 3
Dependent Claim
63 words
A composite structure of material for grain refining, deoxidizing, inoculating and alloy additions for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of a low carbon steel and the filler material at least two of Al, V, Cb, Ti, Zr, Ca, Si, Mn, Cr, Mo, B and rare earths.
Claim 4
Dependent Claim
63 words
A composite structure of material for grain refining, deoxidizing, inoculating and alloy additions for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of a low carbon steel and the filler material at least two of Al, V, Cb, Ti, Zr, Ca, Si, Mn, Cr, Mo, B and rare earths.
Claim 5
Dependent Claim
86 words
A composite structure of a manganesealuminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of 0 to 10% aluminum and at least one of the group of electrolytic manganese, standard ferromanganese, medium carbon ferromanganese, low iron ferromanganese and intermediate iron ferromanganese, the overall composition ranging from 50 to 75% Mn, the balance consisting of Al and other constituents of the manganese material used.
Claim 6
Dependent Claim
86 words
A composite structure of a manganesealuminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of 0 to 10% aluminum and at least one of the group of electrolytic manganese, standard ferromanganese, medium carbon ferromanganese, low iron ferromanganese and intermediate iron ferromanganese, the overall composition ranging from 50 to 75% Mn, the balance consisting of Al and other constituents of the manganese material used.
Claim 7
Dependent Claim
61 words
A composite structure of a silicon-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of 0 to 10% aluminum and silicon, the overall composition ranging from 50 to 75% Si, the balance consisting of Al and minor impurities.
Claim 8
Dependent Claim
61 words
A composite structure of a silicon-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of 0 to 10% aluminum and silicon, the overall composition ranging from 50 to 75% Si, the balance consisting of Al and minor impurities.
Claim 9
Dependent Claim
77 words
A composite structure of a manganese-silicon-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing puLverized filler material, the tube material made of aluminum and the filler material of at least one of the group of silicomanganese and ferromanganese-silicon to give a desired overall composition of about 45 to 50% Mn, 15 to 25% Si and 4 to 10% Fe, the balance consisting of Al and minor impurities.
Claim 10
Dependent Claim
77 words
A composite structure of a manganese-silicon-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing puLverized filler material, the tube material made of aluminum and the filler material of at least one of the group of silicomanganese and ferromanganese-silicon to give a desired overall composition of about 45 to 50% Mn, 15 to 25% Si and 4 to 10% Fe, the balance consisting of Al and minor impurities.
Claim 11
Dependent Claim
63 words
A composite structure of a magnesium-silicon-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of 0 to 10% aluminum and magnesium silicide, the overall composition ranging from about 10 to 35% each of Mg and Si, the balance essentially Al.
Claim 12
Dependent Claim
63 words
A composite structure of a magnesium-silicon-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of 0 to 10% aluminum and magnesium silicide, the overall composition ranging from about 10 to 35% each of Mg and Si, the balance essentially Al.
Claim 13
Dependent Claim
57 words
A composite structure of a titanium-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of titanium sponge and aluminum to give an overall composition of about 3 to 50% Ti, the balance essentially Al.
Claim 14
Dependent Claim
57 words
A composite structure of a titanium-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of titanium sponge and aluminum to give an overall composition of about 3 to 50% Ti, the balance essentially Al.
Claim 15
Dependent Claim
66 words
A composite structure of a titanium-boron-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of titanium sponge, ferroboron and aluminum to give overall composition of 5 to 50% Ti, 0.1 to 10% B, Fe about five times the B content, balance essentially Al.
Claim 16
Dependent Claim
66 words
A composite structure of a titanium-boron-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of titanium sponge, ferroboron and aluminum to give overall composition of 5 to 50% Ti, 0.1 to 10% B, Fe about five times the B content, balance essentially Al.
Claim 17
Dependent Claim
73 words
A composite structure of a boron-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of aluminum and one of the group of ferroboron, manganese-boron and silicon-boron to give overall composition of 1 to 12% B, the balance essentially Al after allowing for any other constituents of the boron alloy used.
Claim 18
Dependent Claim
73 words
A composite structure of a boron-aluminum master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of aluminum and one of the group of ferroboron, manganese-boron and silicon-boron to give overall composition of 1 to 12% B, the balance essentially Al after allowing for any other constituents of the boron alloy used.
Claim 19
Dependent Claim
75 words
A composite structure of an aluminum base master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of at least one of the group of Fe, Pb, Bi, Sr, P, Be, Ca, Ce, rare earths, mischmetal, Cr, Co, Cb, Cu, Ga, Ge, Li, Mg, Mo, Ti, Ni, Ta, V and Zr, or alloys thereof.
Claim 20
Dependent Claim
75 words
A composite structure of an aluminum base master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of aluminum and the filler material of at least one of the group of Fe, Pb, Bi, Sr, P, Be, Ca, Ce, rare earths, mischmetal, Cr, Co, Cb, Cu, Ga, Ge, Li, Mg, Mo, Ti, Ni, Ta, V and Zr, or alloys thereof.
Claim 21
Dependent Claim
19 words
A composite structure in accordance with claim 10 wherein there is additionally aluminum as part of the filler material.
Claim 22
Dependent Claim
73 words
A composite structure of a deoxidation material for use in a direct chill cast process, the structure being calcium-silicon-iron master alloy and comprised of a tube containing pulverized filler material, the tube material made of low carbon steel and the filler material of calcium-silicon, the overall composition ranging from about 8 to 16% Ca, 16 to 34% Si and 50 to 75% Fe by weight at 50% volume compaction of the filler material.
Claim 23
Dependent Claim
73 words
A composite structure of a deoxidation material for use in a direct chill cast process, the structure being calcium-silicon-iron master alloy and comprised of a tube containing pulverized filler material, the tube material made of low carbon steel and the filler material of calcium-silicon, the overall composition ranging from about 8 to 16% Ca, 16 to 34% Si and 50 to 75% Fe by weight at 50% volume compaction of the filler material.
Claim 24
Dependent Claim
55 words
A composite structure of a grain refining and deoxidizing master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of one of the group of low carbon steel and aluminum and the filler of calcium-silicon and 0 to 10% aluminum.
Claim 25
Dependent Claim
55 words
A composite structure of a grain refining and deoxidizing master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of one of the group of low carbon steel and aluminum and the filler of calcium-silicon and 0 to 10% aluminum.
Claim 26
Dependent Claim
56 words
A COMPOSITE STRUCTURE OF A COLUMBIUM-IRON MASTER ALLOY FOR USE IN A DIRECT CHILL CAST PROCESS, THE STRUCTURE BEING COMPRISED OF A TUBE CONTAINING PULVERIZED FILLER MATERIAL, THE TUBE MATERIAL MADE OF LOW CARBON STEEL AND THE FILLER MATERIAL OF FERROCOLUMBIUM, SO THAT THE OVERALL COMPOSITION IS ABOUT 20 TO 55% CB, THE BALANCE ESSENTIALLY FE.
Claim 27
Dependent Claim
56 words
A COMPOSITE STRUCTURE OF A COLUMBIUM-IRON MASTER ALLOY FOR USE IN A DIRECT CHILL CAST PROCESS, THE STRUCTURE BEING COMPRISED OF A TUBE CONTAINING PULVERIZED FILLER MATERIAL, THE TUBE MATERIAL MADE OF LOW CARBON STEEL AND THE FILLER MATERIAL OF FERROCOLUMBIUM, SO THAT THE OVERALL COMPOSITION IS ABOUT 20 TO 55% CB, THE BALANCE ESSENTIALLY FE.
Claim 28
Dependent Claim
58 words
A composite structure of a columbium-aluminum-iron master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of low carbon sTeel and the filler material of ferrocolumbium and aluminum, the filler material comprising up to about 80 percent by weight of the overall composition.
Claim 29
Dependent Claim
58 words
A composite structure of a columbium-aluminum-iron master alloy for use in a direct chill cast process, the structure being comprised of a tube containing pulverized filler material, the tube material made of low carbon sTeel and the filler material of ferrocolumbium and aluminum, the filler material comprising up to about 80 percent by weight of the overall composition.
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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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |