US3658488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposited plain bearing liners
Assignee: Udylite Corp
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Filing: 1970-07-27
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Granted: 1972-04-25
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Expires: 1990-07-27
Abstract
Abstract A method for the manufacture of bearing metal liners, such as those suitable for connecting rod and main bearings. which comprises the electrodeposition of a composite electroplate of one or more of the metals of the group consisting of copper, nickel, cobalt, iron or their alloys containing densely codeposited fine non-metallic insulator particles, followed by a thin electroplate of copper, silver, nickel, cobalt, iron or their alloys that will have dense vertical porosity by virtue of having been deposited on the metallic surface containing the densely codeposited non-metallic insulator particles. The highly porous plate is then overlaid with a final lead-tin alloy electrodeposit, which by plating into the dense porosity of the underlying metal, produces in effect a copper-lead; a nickellead; a cobalt-lead; a silver-lead; or the like ''''alloy'''' plate with an overlayer of lead alloy plate.
Inventors
- 👤 Henry Brown
- 👤 Thaddeus W Tomaszewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:06
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; C25D5/12; C25D5/60; C25D5/615; C25D5/617; C25D5/623; C25D7/00; C25D7/10; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/122; F16C33/14; F16C2204/00; F16C2204/20; F16C2204/60; F16C2223/00; F16C2223/30; F16C2223/70; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12465; Y10T428/12479; Y10T428/12486; Y10T428/12493; Y10T428/1266; Y10T428/12687; Y10T428/12694; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12771; Y10T428/12861; Y10T428/12882; Y10T428/12896; Y10T428/12931
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
136 words
The bearing material as claimed in claim 1 wherein the electro-deposited metallic layer is comprised of at least one electroplate selected from copper, nickel, cobalt, iron and alloys thereof in which at least one of said electroplates is less than about 2 mils thick and contains densely codeposited fine non-metallic particles and is followed by an adherent contiguous metallic layer of less than about 0.5 mil thickness comprised of at least one electroplate selected from silver, copper, nickel, cobalt, iron and alloys thereof and wherein said contiguous layer has dense fine vertical porosity by virtue of having been deposited on the layer containing densely codeposited fine non-metallic particles, and said layer containing the dense vertical fine porosity is overlaid with the adherent lead-tin alloy deposit of a thickness between about 0.2 to about 5 mils thick.
Claim 2
Dependent Claim
37 words
The bearing material as claimed in claim 2 wherein the densely codeposited fine non-metallic particles are selected from barium sulfate and strontium sulfate of a particle size in the range of about 0.05 to about 10 microns.
Claim 3
Dependent Claim
35 words
The bearing material as claimed in claim 2 wherein the densely codeposited fine non-metallic particles are selected from Saran and PVC of a particle size in the range of about 0.05 to about 50 microns.
Claim 4
Dependent Claim
67 words
The bearing material as claimed in claim 3 wherein a copper electroplate of about 0.1 to about 0.5 mil thickness containing densely codeposited fine barium sulfate is plated with about 0.1 to about 0.2 mil nickel plate and the latter is plated with about 0.5 to about 1 mil lead alloy plate containing about 5 to about 10 percent tin and 0 to about 3 percent copper.
Claim 5
Dependent Claim
67 words
The bearing material as characterized in claim 3 wherein a nickel electroplate of about 0.1 to about 0.5 mil thickness containing densely codeposited fine barium sulfate particles is plated with about 0.1 to about 0.3 mil nickel plate and the latter is plated with about 0.5 to about 1 mil lead alloy plate containing about 5 to 10 percent tin and 0 to about 3 percent copper.
Claim 6
Dependent Claim
79 words
The bearing material as claimed in claim 3 wherein a copper electroplate of about 0.1 to about 0.5 mil thickness containing densely codeposited fine barium sulfate particles is plated with about 0.1 to about 0.2 mil of copper plate which is followed by about 0.1 mil of nickel plate which is followed by a lead alloy plate of about 0.5 to about 1 mil thickness containing about 5 to 10 percent tin and 0 to about 3 percent copper.
Claim 7
Dependent Claim
28 words
The bearing material as claimed in claim 5 wherein an added plate selected from brass and silver plates of about 0.1 mil thickness precedes the lead-tin alloy plate.
Claim 8
Dependent Claim
28 words
The bearing material as claimed in claim 6 wherein an added plate selected from brass and silver plates of about 0.1 mil thickness precedes the lead-tin alloy plate.
Claim 9
Dependent Claim
28 words
The bearing material as claimed in claim 7 wherein an added plate selected from brass and silver plates of about 0.1 mil thickness precedes the lead-tin alloy plate.
Claim 10
Dependent Claim
59 words
The bearing material as claimed in claim 1, wherein the metallic layer preceding the final lead-tin alloy plate, is a copper electroplate containing in its lower portion densely codeposited Saran particles and containing in its upper portion dense porosity by virtue of solvent extraction of the Saran particles that were codeposited in the surface of the said copper plate.
Claim 11
Dependent Claim
25 words
The bearing material as claimed in claim 11, wherein an anti-diffusion barrier plate selected from nickel, cobalt and brass precedes the final lead-tin alloy plate.
Claim 12
Dependent Claim
24 words
The bearing material as claimed in claim 1 wherein the final lead-tin alloy electroplate contains densely codeposited particles selected from barium and strontium sulfates.
Claim 13
Dependent Claim
20 words
A shell type bearing comprising a metal backing member, and containing the bearing liner material as claimed in claim 1.
Claim 14
Dependent Claim
44 words
A shell type bearing comprising a steel backing having bonded thereto a non-ferrous highly heat conducting metallic layer selected from silver, copper, aluminum and alloys thereof, and a bearing material as claimed in claim 2 bonded to the surface of said heat conducting layer.
Claim 15
Dependent Claim
42 words
A thin walled bearing shell comprised of a steel back having a non-ferrous highly heat conducting metallic layer bonded to the concave surface thereof, and a bearing material as claimed in claim 2 bonded to the surface of said heat conducting layer.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |