US4222362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control for a rotary dressing wheel
Assignee: Western Atlas Inc
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Filing: 1979-04-02
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Granted: 1980-09-16
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Expires: 1999-04-02
Abstract
Abstract The rpm of a rotary dresser wheel is maintained in a fixed ratio to the rpm of a grinding wheel. The rpm of the grinding wheel is increased to maintain the surface speed of the grinding wheel constant as the grinding wheel wears due to use.
Inventors
- 👤 Russell E. Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:07
CPC Classifications
B; B24; B24B; B24B53/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
101 words
In a grinding machine utilizing a rotary grinding wheel, the combination comprising: a rotary dressing wheel, a variable speed dressing wheel motor for driving the rotary dressing wheel, first means for sensing the diameter of the grinding wheel, a variable speed grinding wheel motor for driving the rotary grinding wheel, a grinding wheel speed control, second means for increasing the speed of the grinding wheel as the grinding wheel becomes worn, and third means for increasing the speed of the dressing wheel as the speed of the grinding wheel is increased to maintain the two wheel speeds in a constant ratio.
Claim 2
Dependent Claim
101 words
In a grinding machine utilizing a rotary grinding wheel, the combination comprising: a rotary dressing wheel, a variable speed dressing wheel motor for driving the rotary dressing wheel, first means for sensing the diameter of the grinding wheel, a variable speed grinding wheel motor for driving the rotary grinding wheel, a grinding wheel speed control, second means for increasing the speed of the grinding wheel as the grinding wheel becomes worn, and third means for increasing the speed of the dressing wheel as the speed of the grinding wheel is increased to maintain the two wheel speeds in a constant ratio.
Claim 3
Dependent Claim
23 words
The combination of claim 1 wherein the variable speed grinding wheel motor and the variable speed dressing wheel motor are connected in parallel.
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) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |