US4373934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal bonded diamond aggregate abrasive
Assignee: General Electric Co
•
Filing: 1981-08-05
•
Granted: 1983-02-15
•
Expires: 2001-08-05
Abstract
Abstract An improved diamond aggregate abrasive is disclosed comprising milled saw diamond having an average size less than 75 microns held in a silver/copper alloy matrix which also contains a wetting agent for (e.g. titanium). Tests of grinding wheels containing this new aggregate have shown a marked improvement in grinding ratio over commercially available diamond aggregates.
Inventors
- 👤 Stephen C. Hayden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:45
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/34; B24D3/342; C; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C22; C22C; C22C26/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
75 words
An improved aggregated abrasive particle comprising diamond particles held in a silver/copper alloy metal bond matrix which contains titanium as a wetting agent for diamond, wherein the improvement comprises those aggregates in which: (a) the particle size of the diamonds, on the average, is less than or equal to 53 microns; (b) the diamonds are characterized as milled saw diamond; and (c) the meta bond matrix comprises 64 to 78 weight percent of the aggregate.
Claim 2
Dependent Claim
75 words
An improved aggregated abrasive particle comprising diamond particles held in a silver/copper alloy metal bond matrix which contains titanium as a wetting agent for diamond, wherein the improvement comprises those aggregates in which: (a) the particle size of the diamonds, on the average, is less than or equal to 53 microns; (b) the diamonds are characterized as milled saw diamond; and (c) the meta bond matrix comprises 64 to 78 weight percent of the aggregate.
Claim 3
Dependent Claim
26 words
The improved aggregated abrasive particle as recited in claim 1 wherein the milled saw diamond has an aspect ratio of less than or equal to 2:1.
Claim 4
Dependent Claim
14 words
A resin bond grinding wheel containing the improved aggregated abrasive particles of claim 1.
Claim 5
Dependent Claim
25 words
The improved aggregate abrasive particle of claim 1 wherein the volume ratio of diamond to metal matrix is in the range of 2:1 to 4:1.
Claim 6
Dependent Claim
28 words
The improved aggregated abrasive particle as recited in claim 1 wherein the wetting agent is titanium present in an amount of about 5 weight percent of the aggregate.
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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) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |