Patent US5477074A successfully refreshed from Google Patents.
US4170469A
Expired / Lapsed
US
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Aluminum base bearing alloy and a composite bearing made of the alloy with a steel backing plate
Assignee: AbbVie Pharmaceuticals GmbH
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Filing: 1978-02-22
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Granted: 1979-10-09
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Expires: 1998-02-22
Abstract
Abstract A composite bearing composed of a bearing alloy consisting of 2-8% Zn, 2-8% Si, 0.1-3% Cu, and 0.1-3% Pb all by weight with the remainder being aluminum and a steel backing lined with said bearing alloy. This bearing alloy has outstanding non-sticking property and fatigue strength and is best suited for medium and high speed diesel engine bearings. This bearing alloy may further contain 0.2-7% in total of one or more elements selected from the group consisting of Mg, Ni, and Bi with their respective composition limits being 0.1-2%, 0.1-3% and 0.1-2% by weight.
Inventors
- 👤 Sanae Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:39
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/02; C22C21/04; C22C21/10; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/121; F02; F02B; F02B3/00; F02B3/06; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
58 words
An aluminum-base bearing alloy of superior anti-sticking property and fatigue strength consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead and the remainder substantially aluminum, said zinc existing as a solute metal in aluminum solid solution, and said silicon and lead existing as dispersed particles.
Claim 2
Dependent Claim
58 words
An aluminum-base bearing alloy of superior anti-sticking property and fatigue strength consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead and the remainder substantially aluminum, said zinc existing as a solute metal in aluminum solid solution, and said silicon and lead existing as dispersed particles.
Claim 3
Dependent Claim
72 words
An aluminum-base bearing alloy of superior anti-sticking property and fatigue strength consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead and 0.2-7% by weight in total of one or more elements selected from the group consisting of 0.1-2% by weight of magnesium, 0.1-3% by weight of nickel and 0.1-2% by weight of bismuth, and the remainder substantially being aluminum.
Claim 4
Dependent Claim
72 words
An aluminum-base bearing alloy of superior anti-sticking property and fatigue strength consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead and 0.2-7% by weight in total of one or more elements selected from the group consisting of 0.1-2% by weight of magnesium, 0.1-3% by weight of nickel and 0.1-2% by weight of bismuth, and the remainder substantially being aluminum.
Claim 5
Dependent Claim
60 words
A composite bearing consisting of a steel plate backing or steel plate backing with a thin plating of nickel and an aluminum-base bearing alloy bonded on said steel plate bearing, which alloy consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead and the remainder substantially being aluminum.
Claim 6
Dependent Claim
60 words
A composite bearing consisting of a steel plate backing or steel plate backing with a thin plating of nickel and an aluminum-base bearing alloy bonded on said steel plate bearing, which alloy consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead and the remainder substantially being aluminum.
Claim 7
Dependent Claim
77 words
A composite bearing consisting of a steel plate backing or steel plate backing with a thin plating of nickel and an aluminum-base bearing alloy bonded on said steel plate backing, which alloy consisting of 2-8% zinc, 2-8% silicon, 0.1-3% copper 0.1-3% lead, 0.2-7% in total of one or more elements selected from the group of magnesium, nickel and bismuth, with their respective composition limits being 0.1-2%, 0.1-3% and 0.1-2% by weight, and the remainder being substantially aluminum.
Claim 8
Dependent Claim
77 words
A composite bearing consisting of a steel plate backing or steel plate backing with a thin plating of nickel and an aluminum-base bearing alloy bonded on said steel plate backing, which alloy consisting of 2-8% zinc, 2-8% silicon, 0.1-3% copper 0.1-3% lead, 0.2-7% in total of one or more elements selected from the group of magnesium, nickel and bismuth, with their respective composition limits being 0.1-2%, 0.1-3% and 0.1-2% by weight, and the remainder being substantially aluminum.
Claim 9
Dependent Claim
23 words
A composite bearing as set forth in claim 3, wherein said aluminum-base bearing alloy is provided with a lead-base overlay on the surface.
Claim 10
Dependent Claim
23 words
A composite bearing as set forth in claim 4, wherein said aluminum-base bearing alloy is provided with a lead-base overlay on the surface.
Claim 11
Dependent Claim
40 words
A composite bearing in accordance with claim 5 wherein said lead-base overlay is selected from alloys of the group consisting of 10% Sn with the remainder being essentially Pb, and 3% Cu, 8% Sn with the remainder being essentially Pb.
Claim 12
Dependent Claim
40 words
A composite bearing in accordance with claim 6 wherein said lead-base overlay is selected from alloys of the group consisting of 10% Sn with the remainder being essentially Pb, and 3% Cu, 8% Sn with the remainder being essentially Pb.
Claim 13
Dependent Claim
45 words
A bearing for a diesel engine having superior fatigue strength at heavy loads, comprising: a bearing layer consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead, and the remainder being substantially aluminum.
Claim 14
Dependent Claim
45 words
A bearing for a diesel engine having superior fatigue strength at heavy loads, comprising: a bearing layer consisting of 2-8% by weight of zinc, 2-8% by weight of silicon, 0.1-3% by weight of copper, 0.1-3% by weight of lead, and the remainder being substantially aluminum.
Claim 15
Dependent Claim
36 words
A bearing in accordance with claim 9 wherein said bearing layer further comprises 0.2-7% by weight in total of one or more of 0.1-2% by weight magnesium, 0.1-3% by weight nickel and 0.1-2% by weight bismuth.
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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) | 1982-10-08 | 1983-04-09 | 1983-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-08 | 1987-04-09 | 1987-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-08 | 1991-04-09 | 1991-10-09 | $7700.00 | Window Closed / Lapsed |