Patent US4961779A successfully refreshed from Google Patents.
US4961779A
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Aluminum composite material
Assignee: Toyo Aluminum KK
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Filing: 1989-04-10
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Granted: 1990-10-09
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Expires: 2009-04-10
Abstract
Abstract Disclosed are (1) a composite material of aluminum powder containing spherical carbon particles; (2) a composite material of aluminum powder having a good self-lubricity and a high wear resistance and consolidated with a mixture of (i) 100 parts by weight of aluminum particles of about 1 to about 200 mu m in mean particle size; and (ii) about 1 and about 100 parts by weight of spherical carbon particles of about 1 to about 50 mu m in mean particle size; and (3) a composite material of aluminum powder having a good self-lubricity, a high wear resistance and a high strength and consolidated with a mixture of (i) 100 parts of aluminum alloy particles containing about 0.3 to about 15% by weight of magnesium and having a mean particle size of about 1 to about 200 mu m; and (ii) about 1 to about 100 parts by weight of spherical carbon particles having a mean particle size of about 1 to about 50 mu m.
Inventors
- 👤 Jun Kusui
- 👤 Akiei Tanaka
- 👤 Masahiko Kawai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:00
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/0084; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/121
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
47 words
A composite material of aluminum powder containing artificially synthesized, spherical carbon particles having a non-lamellar, and vitreous or amorphous structure, having a high strength of about 10 kg/mm 2 or more in flexure strength, and having a mean particle size of about 1 to about 50 μm.
Claim 2
Dependent Claim
47 words
A composite material of aluminum powder containing artificially synthesized, spherical carbon particles having a non-lamellar, and vitreous or amorphous structure, having a high strength of about 10 kg/mm 2 or more in flexure strength, and having a mean particle size of about 1 to about 50 μm.
Claim 3
Dependent Claim
91 words
A composite material of aluminum powder having a good self-lubricity and a high wear resistance produced by consolidating a mixture of: (i) 100 parts by weight of aluminum particles of about 1 to about 200 μm in mean particle size; and (ii) about 1 to about 100 parts by weight of artificially synthesized, spherical carbon particles having a non-lamellar, and vitreous or amorphous structure, having a high strength of about 10 kg/mm 2 or more in flexure strength, and having a mean particle size of about 1 to about 50 μm.
Claim 4
Dependent Claim
91 words
A composite material of aluminum powder having a good self-lubricity and a high wear resistance produced by consolidating a mixture of: (i) 100 parts by weight of aluminum particles of about 1 to about 200 μm in mean particle size; and (ii) about 1 to about 100 parts by weight of artificially synthesized, spherical carbon particles having a non-lamellar, and vitreous or amorphous structure, having a high strength of about 10 kg/mm 2 or more in flexure strength, and having a mean particle size of about 1 to about 50 μm.
Claim 5
Dependent Claim
28 words
A composite material of aluminum powder according to claim 2 in which the spherical carbon particles have a mean particle size of about 20 to about 30 μm.
Claim 6
Dependent Claim
107 words
A composite material of aluminum powder having a good self-lubricity, a high wear resistance and a high strength produced by consolidating a mixture of: (i) 100 parts by weight of aluminum alloy particles containing about 0.3 to about 15% by weight of magnesium and having a mean particle size of about 1 to about 200 μm; and (ii) about 1 to about 100 parts by weight of artificially synthesized, spherical carbon particles having a non-lamellar, and vitreous or amorphous structure, having a high strength of about 10 kg/mm 2 or more in flexure strength, and having a mean particle size of about 1 to about 50 μm.
Claim 7
Dependent Claim
107 words
A composite material of aluminum powder having a good self-lubricity, a high wear resistance and a high strength produced by consolidating a mixture of: (i) 100 parts by weight of aluminum alloy particles containing about 0.3 to about 15% by weight of magnesium and having a mean particle size of about 1 to about 200 μm; and (ii) about 1 to about 100 parts by weight of artificially synthesized, spherical carbon particles having a non-lamellar, and vitreous or amorphous structure, having a high strength of about 10 kg/mm 2 or more in flexure strength, and having a mean particle size of about 1 to about 50 μm.
Claim 8
Dependent Claim
28 words
A composite material of aluminum powder according to claim 4 in which the spherical carbon particles have a mean particle size of about 20 to about 30 μm.
Claim 9
Dependent Claim
24 words
A composite material of aluminum powder according to claim 4 in which the content of magnesium is about 1 to about 10% by weight.
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) | 1993-10-08 | 1994-04-09 | 1994-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-08 | 1998-04-09 | 1998-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-08 | 2002-04-09 | 2002-10-09 | $7700.00 | Window Closed / Lapsed |