US4738010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a sheet or plate-shaped structure as the bearing material for slide bearings
Assignee: Karlsruher Institut für Technologie
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Filing: 1987-02-20
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Granted: 1988-04-19
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Expires: 2007-02-20
Abstract
Abstract A method of producing a plate-shaped bearing member for sliding bearings, the structure being composed of a patterned body of supporting bearing material and a lubricant, utilizing a galvanoplastic fabrication step, the method including: producing a mold provided with a pattern of recesses, the step of producing including performing an X-ray deep-etch lithography procedure; filling the recesses to form the body of bearing material; removing the mold from the body of bearing material so that spaces are left in the bearing material; and filling the thus produced spaces with the lubricant.
Inventors
- 👤 Wolfgang Ehrfeld
- 👤 Peter Hagmann
- 👤 Werner Schelb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:43
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/24; C; C25; C25D; C25D7/00; C25D7/10; Y; Y10; Y10S; Y10S29/00; Y10S29/025; Y10S29/029; Y10S29/048; Y10S384/00; Y10S384/90; Y10S384/907; Y10S384/909; Y10S384/912; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49705; Y10T29/4998; Y10T29/49982; Y10T29/49993; Y10T29/49995; Y10T428/00; Y10T428/12; Y10T428/1234; Y10T428/12486; Y10T428/12493; Y10T428/12535
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
Method of producing a plate-shaped bearing member for slide bearings, the structure being composed of a patterned body of supporting bearing material and a lubricant, utilizing a galvanoplastic fabrication step, said method comprising: (a) producing a mold provided with a pattern of recesses, said step of producing including performing an X-ray deep-etch lithography procedure; (b) filling the recesses to form the body of bearing material; (c) removing the mold from the body of bearing material so that spaces are left in the bearing material; and (d) filling the thus produced spaces with the lubricant.
Claim 2
Dependent Claim
94 words
Method of producing a plate-shaped bearing member for slide bearings, the structure being composed of a patterned body of supporting bearing material and a lubricant, utilizing a galvanoplastic fabrication step, said method comprising: (a) producing a mold provided with a pattern of recesses, said step of producing including performing an X-ray deep-etch lithography procedure; (b) filling the recesses to form the body of bearing material; (c) removing the mold from the body of bearing material so that spaces are left in the bearing material; and (d) filling the thus produced spaces with the lubricant.
Claim 3
Dependent Claim
38 words
A method as defined in claim 1 wherein the mold recesses have a bottom forming an electrically conductive layer, and said step of filling the recesses is carried out electrolytically using the electrically conductive layer as an electrode.
Claim 4
Dependent Claim
32 words
Method as defined in claim 2 further comprising, after said step of removing and before said step of filling with the lubricant, connecting the layer of bearing material with a substrate body.
Claim 5
Dependent Claim
99 words
Method as defined in claim 2 wherein said step of producing a mold is carried out to form a mold structure composed of at least one base portion having a selected height and selected transverse dimensions and at least one further portion protruding from the base portion and having a selected height and selected transverse dimensions, with at least one transverse dimension of the further portion being less than the corresponding transverse dimension of the base portion, and with the total height of the mold structure being at least equal to the thickness of the resulting bearing material layer.
Claim 6
Dependent Claim
26 words
A method as defined in claim 1 wherein the material used to fill the recesses in said step of filling is a non-electrolytically depositable, moldable material.
Claim 7
Dependent Claim
18 words
A method as defined in claim 5 wherein the moldable material is a plastic, glass, or ceramic material.
Claim 8
Dependent Claim
31 words
A Method as defined in claim 1, wherein the step of producing a mold provides applying a molding tool said molding tool being produced by means of x-ray-deep-etch lithography and galvanoplasty.
References Cited (Backward Citations)
GB145117A
Cited
GB536414A
Cited
US2498873A
Cited
FR1060501A
Cited
US2781549A
Cited
DE2234438A1
Cited
US4208472A
Cited
US4528079A
Cited
US4658500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |