Patent US4256467A successfully refreshed from Google Patents.
US4256467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A flexible abrasive coated article and method of making it
Assignee: 3M UK Holdings Ltd
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Filing: 1979-12-17
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Granted: 1981-03-17
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Expires: 1999-12-17
Abstract
Abstract A flexible abrasive member is formed by applying a layer of metal (13;15,16) to mesh material (12). Abrasive material (14) is embedded in the metal layer during the deposition of the layer by an electrodeposition process. The mesh material may be electrically non-conducting woven material and the metal layer is deposited through the mesh material. In making the member the mesh material is laid on a smooth, preferably curvilinear, surface (10) formed with areas (11) for receiving the metal layer. Abrasive material is introduced onto the surface at the beginning of the metal deposition process or towards the end of the deposition process.
Inventors
- 👤 Ian Gorsuch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
B; B24; B24D; B24D11/00; B24B; B24B13/00; B24B13/01; B24D11/001; B24D11/005; B24D18/00; B24D18/0018
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
94 words
A method of making a flexible abrasive member in which a length of flexible, non-electrically conducting mesh material is laid onto a smooth electrically-conductive surface, a layer of metal is electro-deposited onto said smooth surface and thereby directly onto and through the mesh material in the presence of abrasive material so that the abrasive material becomes embedded in the metal layer and the metal layer is adhered to the mesh, and the mesh and the associated metal layer with embedded abrasive material is stripped from the electrically conductive surface to constitute the abrasive member.
Claim 2
Independent Claim
94 words
A method of making a flexible abrasive member in which a length of flexible, non-electrically conducting mesh material is laid onto a smooth electrically-conductive surface, a layer of metal is electro-deposited onto said smooth surface and thereby directly onto and through the mesh material in the presence of abrasive material so that the abrasive material becomes embedded in the metal layer and the metal layer is adhered to the mesh, and the mesh and the associated metal layer with embedded abrasive material is stripped from the electrically conductive surface to constitute the abrasive member.
Claim 3
Dependent Claim
44 words
A method according to claim 1 wherein the smooth surface is applied with electrically insulating material over selected areas of the surface so that the metal layer is deposited only over remaining discrete areas of the surface and corresponding discrete areas of the mesh.
Claim 4
Dependent Claim
25 words
A method according to claim 1 wherein the smooth surface is of curvilinear form and the mesh material is applied under tension to the surface.
Claim 5
Dependent Claim
31 words
A method according to claim 3 wherein the smooth surface is cylindrical and of stainless steel treated over said remaining areas to prevent adhesion of the metal layer to the surface.
Claim 6
Dependent Claim
25 words
A method according to claim 1 wherein abrasive material is present on the smooth surface at the commencement of deposition of metal on said surface.
Claim 7
Dependent Claim
49 words
A method according to claim 1 wherein a metal layer is deposited on the smooth surface in the absence of abrasive material and a further layer of metal is deposited on the first layer in the presence of abrasive material to embed the abrasive material in the further layer.
Claim 8
Dependent Claim
15 words
A method according to claim 1 wherein the mesh material is formed of woven fabric.
Claim 9
Dependent Claim
45 words
A flexible abrasive member comprising a flexible non-electrically conductive mesh material, a layer of electro-deposited metal adhered directly to and extending through the mesh material so that the mesh material is embedded in the metal layer, the layer of metal having abrasive material embedded therein.
Claim 10
Dependent Claim
45 words
A flexible abrasive member comprising a flexible non-electrically conductive mesh material, a layer of electro-deposited metal adhered directly to and extending through the mesh material so that the mesh material is embedded in the metal layer, the layer of metal having abrasive material embedded therein.
Claim 11
Dependent Claim
22 words
An abrasive member according to claim 8 wherein the layer of metal is formed on selected discrete areas of the mesh material.
Claim 12
Dependent Claim
37 words
An abrasive member according to claim 8 wherein the abrasive material is located to one side of the mesh material and lies on the surface of the metal layer at said one side of the mesh material.
Claim 13
Dependent Claim
15 words
An abrasive member according to claim 8 wherein the mesh material is of woven fabric.
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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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |