Patent US4381227A successfully refreshed from Google Patents.
US4381227A
Expired / Lapsed
US
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Process for the manufacture of abrasive-coated tools
Assignee: Saint Gobain Abrasives Inc
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Filing: 1981-10-08
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Granted: 1983-04-26
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Expires: 2001-10-08
Abstract
Abstract Abrasive products comprising abrasive grit particles bonded to a preferably flexible backing with nickel are produced by current assisted deposition from an electroless plating bath. The current is applied between a nickel containing anode and the abrasive substrate as a cathode at a preferred rate of between 2-150 amperes per foot of substrate area. The final deposition of metal is preferably carried out electrolessly. Process promotes uniform deposition of bond between abrasive grits in single layer on substrate.
Inventors
- 👤 Harold Narcus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:51
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; C25D5/12; C25D5/14; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1633; C23C18/1646; C23C18/165; C23C18/1653; C23C18/1655; C23C18/1662; C23C18/1664; C23C18/1671; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2073; C23C18/2086; C23C18/31; C23C18/32; C23C18/34; C25D15/00; C25D15/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A flexible coated abrasive product comprising a non-conductive polymer film, a first conductive layer applied to one side of said film, a second, electrolytically applied, layer on said conductive layer, a third layer on said second layer, said third layer containing electrolytically applied nickel and, holding diamond abrasive particles to said second layer, a fourth layer electrolessly applied with electrolytic assistance of at least 50 amperes per square foot and containing, in addition to nickel, a combined element selected from the group consisting of boron and phosphorous and combinations thereof, said third and fourth layers amounting to 20 to 50% of the height of the diamond particles perpendicular to the plane of the backing.
Claim 2
Dependent Claim
114 words
A flexible coated abrasive product comprising a non-conductive polymer film, a first conductive layer applied to one side of said film, a second, electrolytically applied, layer on said conductive layer, a third layer on said second layer, said third layer containing electrolytically applied nickel and, holding diamond abrasive particles to said second layer, a fourth layer electrolessly applied with electrolytic assistance of at least 50 amperes per square foot and containing, in addition to nickel, a combined element selected from the group consisting of boron and phosphorous and combinations thereof, said third and fourth layers amounting to 20 to 50% of the height of the diamond particles perpendicular to the plane of the backing.
References Cited (Backward Citations)
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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) | 1986-04-25 | 1986-10-25 | 1987-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-25 | 1990-10-25 | 1991-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-25 | 1994-10-25 | 1995-04-26 | $7700.00 | Window Closed / Lapsed |