US3579928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-air cooling abrading wheel
Assignee: Individual
•
Filing: 1969-07-14
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Granted: 1971-05-25
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Expires: 1989-07-14
Abstract
Abstract A self-air cooling abrading wheel having a flat annular web and an axially enlarged annular rim with a peripheral abrading surface thereon, and with a first series of elongated angularly related slots formed in said rim around its periphery extending inwardly of the rim for a portion of its width, said slots having air inlets adjacent said web and outlets extending radially outward of said rim, and a second series of said angularly related slots extending inwardly from the other side of said web, the slots of the second series being alternated with the slots of the first series and independent thereof.
Inventors
- 👤 Gerhard R Held
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:05
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/10; B24D7/00; B24D7/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
In a monolithic abrading wheel; the improvement comprising: a series of notches on one annular edge defining the intersection of the abrading wheel face and the wheel side; the notches opening to both the face and the side; each notch being of considerable cross length, across the face, at least approximately halfway; and of considerable side length, measured on the side towards the axis of the wheel; with the side length being greater than the cross length; whereby, on wheel rotation, each notch will serve as an airscoop to scoop air from the atmosphere at the side of the wheel, into the side part of the notch, and outlet it to the face of the wheel, out from the face part of the notch.
Claim 2
Dependent Claim
124 words
In a monolithic abrading wheel; the improvement comprising: a series of notches on one annular edge defining the intersection of the abrading wheel face and the wheel side; the notches opening to both the face and the side; each notch being of considerable cross length, across the face, at least approximately halfway; and of considerable side length, measured on the side towards the axis of the wheel; with the side length being greater than the cross length; whereby, on wheel rotation, each notch will serve as an airscoop to scoop air from the atmosphere at the side of the wheel, into the side part of the notch, and outlet it to the face of the wheel, out from the face part of the notch.
Claim 3
Dependent Claim
24 words
A wheel according to claim 1 wherein the side part of each notch extends from the face towards the axis on a nonradial line.
Claim 4
Dependent Claim
31 words
A wheel according to claim 1 wherein there is a similar series of notches on the other annular edge of the wheel, with the two sets of notches being relatively staggered.
Claim 5
Dependent Claim
31 words
A wheel according to claim 2 wherein there is a similaR series of notches on the other annular edge of the wheel, with the two sets of notches being relatively staggered.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |