US5022895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer abrading tool and process
Assignee: Individual
•
Filing: 1989-10-18
•
Granted: 1991-06-11
•
Expires: 2009-10-18
Abstract
Abstract A multilayer abrading tool is produced by first providing a tool substrate with a structured abrading surface. An abrasive grit coating is provided by mixing a temporary binder, an abrasive grit material and an infiltrant powder material. This coating is then applied to the structured surface. The tool is then heated to drive off the binder and to cause infiltration of the infiltrant in the abrasive grit to form a multilayer of diamond grit suspended in a braze matrix which is attached to the structured surface of the tool substrate.
Inventors
- 👤 Ronald C. Wiand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:04
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/10; B24D3/34; B24D3/348; B24D5/00; B24D5/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
55 words
An abrading tool having a "multilayer abrasive grit matrix surface layer" produced without a mold, said abrading tool comprising: an abrading tool substrate, having a structured abrading surface, and a multilayer of abrasive particles attached thereto in substantially an even thickness coating, said multilayer of abrasive particles being diamond grit suspended in an infiltrant matrix.
Claim 2
Dependent Claim
55 words
An abrading tool having a "multilayer abrasive grit matrix surface layer" produced without a mold, said abrading tool comprising: an abrading tool substrate, having a structured abrading surface, and a multilayer of abrasive particles attached thereto in substantially an even thickness coating, said multilayer of abrasive particles being diamond grit suspended in an infiltrant matrix.
Claim 3
Dependent Claim
86 words
The abrading tool of claim 1 wherein the multilayer of abrasive particles is provided on said structured abrading surface by coating the structured abrading surface with a layer of an abrasive grit suspended in an infiltrant martix, in its green state with a temporary binder and thereafter heating said coating to drive off the binder and cause infiltration of said infiltrant matrix thereby suspending the abrasive grit particles in the infiltrant matrix in a multilayer and to bond said infiltrant matrix to the structured abrading surface.
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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) | 1994-06-10 | 1994-12-10 | 1995-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-10 | 1998-12-10 | 1999-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-10 | 2002-12-10 | 2003-06-11 | $7700.00 | Window Closed / Lapsed |