US3742654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive grinding wheel construction
Assignee: General Electric Co
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Filing: 1971-12-22
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Granted: 1973-07-03
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Expires: 1991-12-22
Abstract
Abstract Abrasive grinding wheel construction is described in which the wheel disc (exclusive of the abrasive rim) and hub are made as a single member to eliminate eccentricity a) during molding of the abrasive rim thereto and b) upon mounting the completed wheel.
Inventors
- 👤 K Darrow
- 👤 L Hibbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:36
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
An abrasive wheel comprising a hub portion formed integral with a disc portion, the hub and disc being a continuous piece of a single material, said piece being bounded to an annular rim comprising abrasive grit and binder material, said hub portion having a tapered bore for mounting said wheel and the central axis of said tapered bore being substantially co-incident with the axis of symmetry of said outer rim.
Claim 2
Dependent Claim
70 words
An abrasive wheel comprising a hub portion formed integral with a disc portion, the hub and disc being a continuous piece of a single material, said piece being bounded to an annular rim comprising abrasive grit and binder material, said hub portion having a tapered bore for mounting said wheel and the central axis of said tapered bore being substantially co-incident with the axis of symmetry of said outer rim.
Claim 3
Dependent Claim
22 words
The abrasive wheel of claim 1 wherein the abrasive grit is diamond and the integral hub and disc construction is a casting.
Claim 4
Dependent Claim
24 words
The abrasive wheel of claim 1 wherein the abrasive grit is cubic boron nitride and the integral hub and disc construction is a casting.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |