US4197146A
Expired / Lapsed
US
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Molded amorphous metal electrical magnetic components
Assignee: General Electric Co
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Filing: 1978-10-24
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Granted: 1980-04-08
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Expires: 1998-10-24
Abstract
Abstract An article and a method of producing molded electrical magnetic components from amorphous metal segments is provided by compacting the segments.
Inventors
- 👤 Peter G. Frischmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:49
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/002; B22F9/008; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/153; H01F1/15341; H01F1/1535; H01F1/15358; H01F1/15366; H01F1/15375; H01F10/00; H01F10/08; H01F10/10; H01F10/12; H01F10/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
124 words
An electrical magnetic component comprising a magnetic metal which is at least 50% amorphous characterized by compacted discontinuous substantially oblate spheroidal flakes having a thickness between about 0.0005" and about 0.002", a length between about 0.01" and about 1", and a width between about 0.01" and about 1", wherein the metal has the composition represented by the formula, A.sub.x X.sub.y, with A being one or more of Fe, Co, Ni, Mo, W, Cr, and V; Z being one or more of Si, C, B, P, Al, Sn, Sb, Ge, In, and Be; x being an atomic percentage of from 70-90, and y being an atomic percentage of from 30-10, said flakes being aligned in the direction of magnetic flux to reduce eddy current losses.
Claim 2
Dependent Claim
124 words
An electrical magnetic component comprising a magnetic metal which is at least 50% amorphous characterized by compacted discontinuous substantially oblate spheroidal flakes having a thickness between about 0.0005" and about 0.002", a length between about 0.01" and about 1", and a width between about 0.01" and about 1", wherein the metal has the composition represented by the formula, A.sub.x X.sub.y, with A being one or more of Fe, Co, Ni, Mo, W, Cr, and V; Z being one or more of Si, C, B, P, Al, Sn, Sb, Ge, In, and Be; x being an atomic percentage of from 70-90, and y being an atomic percentage of from 30-10, said flakes being aligned in the direction of magnetic flux to reduce eddy current losses.
Claim 3
Dependent Claim
23 words
The component of claim 1, wherein the percent by volume of magnetic material of the component is from about 50% to about 95%.
Claim 4
Dependent Claim
13 words
The component of claim 1, wherein the flakes are at least 90% amorphous.
Claim 5
Dependent Claim
10 words
The component of claim 1, wherein the flakes are annealed.
Claim 6
Dependent Claim
10 words
The component of claim 1, wherein a binder is therein.
Claim 7
Dependent Claim
16 words
The component of claim 1, wherein the component is in the shape of a toroidal core.
Claim 8
Dependent Claim
11 words
The component of claim 1, wherein the component is a stator.
Claim 9
Dependent Claim
9 words
The component of claim 1, wherein A is Fe.
Claim 10
Dependent Claim
15 words
The component of claim 1, wherein A is Fe and Z is B and Si.
Claim 11
Dependent Claim
18 words
The component of claim 1, wherein the aspect ratio of the flakes is between about 1:1 and 100:1.
Claim 12
Dependent Claim
34 words
The component of claim 1, wherein the flakes have a thickness between about 0.0008" and about 0.0015", a length between about 0.1" and about 0.5" and a width between about 0.02" and about 0.5".
References Cited (Backward Citations)
US3777295A
Cited
US4006479A
Cited
US3856513A
Cited
US4063942A
Cited
US4069045A
Cited
US4079430A
Cited
US4067732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |