US4883778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Products formed of a ceramic-glass-metal composite
Assignee: Olin Corp
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Filing: 1986-10-30
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Granted: 1989-11-28
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Expires: 2006-10-30
Abstract
Abstract The present invention is directed to an engineering ceramic product formed of a ceramic-glass-metal composite being strong, durable, formable into complex shapes and having good improved thermal conductivity.
Inventors
- 👤 Narendra N. Singhdeo
- 👤 Deepak Mahulikar
- 👤 Sheldon H. Butt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:10
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/3094; A61F2/30965; C; C03; C03C; C03C14/00; C03C14/004; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61F2/3609; A61F2002/3625; A61F2002/3631; A61F2002/3678; A61F2002/368; A61F2310/00; A61F2310/00005; A61F2310/00179; A61F2310/00185; A61F2310/00203; C03C2214/00; C03C2214/04; C03C2214/08; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0306
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
123 words
An engineering ceramic product formed from a ceramic-glass-metal composite, comprising: from about 5 to about 45 volume percent of metallic particles for enhancing the flow characteristics of said composite, said metallic particles selected from the group consisting of aluminum, copper, iron, silver, gold, stainless steel and alloys thereof; from about 15 to about 50 volume percent of a glass for adhering said composite together; and the balance essentially ceramic particles, said ceramic particles selected from the group consisting of Al 2 O 3 , SiC, BeO, TiO 2 , ZrO 2 , MgO, AlN, Si 3 N 4 , BN and mixtures thereof; said composite having a structure comprising substantially a matrix of said glass with said ceramic and metallic particles dispersed therein.
Claim 2
Dependent Claim
123 words
An engineering ceramic product formed from a ceramic-glass-metal composite, comprising: from about 5 to about 45 volume percent of metallic particles for enhancing the flow characteristics of said composite, said metallic particles selected from the group consisting of aluminum, copper, iron, silver, gold, stainless steel and alloys thereof; from about 15 to about 50 volume percent of a glass for adhering said composite together; and the balance essentially ceramic particles, said ceramic particles selected from the group consisting of Al 2 O 3 , SiC, BeO, TiO 2 , ZrO 2 , MgO, AlN, Si 3 N 4 , BN and mixtures thereof; said composite having a structure comprising substantially a matrix of said glass with said ceramic and metallic particles dispersed therein.
Claim 3
Dependent Claim
10 words
The product of claim 1 which comprises a ceramic rotor.
Claim 4
Dependent Claim
26 words
The product of claim 2 including said ceramic particles being alumina; said glass being a borosilicate; and said metallic particles being an iron or iron alloy.
Claim 5
Dependent Claim
38 words
The product of claim 3 wherein said glass comprises about 20 to about 35 volume percent of said composite, said metal comprises about 5 to about 10 volume percent of said composite and the balance essentially ceramic particles.
Claim 6
Dependent Claim
11 words
The product of claim 1 which comprises a ceramic engine block.
Claim 7
Dependent Claim
15 words
The product of claim 5 wherein said ceramic engine block includes metal inserts incorporated therein.
Claim 8
Dependent Claim
11 words
The product of claim 6 wherein said metal inserts form cylinders.
Claim 9
Dependent Claim
26 words
The product of claim 5 including said ceramic particles being alumina; said glass being a borosilicate; and said metallic particles being an iron or iron alloy.
Claim 10
Dependent Claim
38 words
The product of claim 8 wherein said glass comprises about 20 to about 35 volume percent of said composite, said metal comprises about 5 to about 10 volume percent of said composite and the balance essentially ceramic particles.
Claim 11
Dependent Claim
10 words
The product of claim 1 which comprises a body prosthesis.
Claim 12
Dependent Claim
29 words
The product of claim 10 wherein said metal particles are selected from the group consisting of silver, gold, stainless steel and alloys thereof; and the ceramic is alumina particles.
Claim 13
Dependent Claim
39 words
The product of claim 11 including said metal being from about 5 to about 15 volume percent of said composite, said ceramic particles being about 40 to about 65 volume percent of said composite and the balance essentially glass.
Claim 14
Dependent Claim
11 words
The product as in claim 1 which comprises a grinding wheel.
Claim 15
Dependent Claim
39 words
The product of claim 13 including said ceramic particles being selected from the group consisting of alumina, silicon-carbide and titanium-carbide; the metal selected from the group consisting of copper, nickel, tungsten and molybdenum; and the glass being a borosilicate.
Claim 16
Dependent Claim
40 words
The product of claim 14 including said metal particles being about 5 to about 20 volume percent of the composite, the glass being about 20 to about 25 volume percent of the composite and the remainder being the ceramic particles.
References Cited (Backward Citations)
US4018717A
Cited
US4561996A
Cited
US4293325A
Cited
US4323484A
Cited
US4299887A
Cited
US4682414A
Cited
US4532222A
Cited
US4598167A
Cited
US4569692A
Cited
US4659404A
Cited
US4668957A
Cited
US4748136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |