Abrasive wheel comprising a fan-like structure
AssigneeJ. Walter Company Ltd.
InventorWerner Schudel
Life of this patent
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Abstract
The present invention provides an abrasive wheel that comprises a ring-shaped abrasive surface and an integrally formed central portion. The ring-shaped abrasive surface has an outer peripheral edge and an inner peripheral edge. The integrally formed central portion comprises an attachment portion for attaching the abrasive wheel to a rotation source and a plurality of fan blades for directing air-flow over the ring-shaped abrasive surface. The plurality of fan blades are positioned radially inwardly of the inner peripheral edge of the ring-shaped abrasive surface.
Claims32
An abrasive wheel, comprising:
- a. a ring-shaped abrasive surface having an outer peripheral edge and an inner peripheral edge, the ring-shaped abrasive surface being defined by a plurality of overlapping abrasive flaps;
- b. an integrally formed central portion, comprising:
- i. a threaded attachment portion for attaching the abrasive wheel to a rotation source;
- ii. a plurality of fan blades for directing air-flow over the ring-shaped abrasive surface, the plurality of fan blades being positioned radially inwardly of the inner peripheral edge of the ring-shaped abrasive surface.
An abrasive wheel, comprising:
- a. a ring-shaped abrasive surface having an outer peripheral edge and an inner peripheral edge;
- b. an integrally formed central portion comprising:
- i. a front surface and a back surface;
- ii. a threaded attachment portion for attaching the abrasive disc to a rotation source;
- and
- iii. a plurality of fan blades located on the front surface for directing air-flow over the abrasive surface, wherein the plurality of fan blades extend radially from the attachment portion to the ring shaped abrasive surface and are spaced evenly around the attachment portion, the central portion being closed to the passage of air from the front surface to the back surface such that the plurality of fan blades displace air over the abrasive surface.
An integrally formed backing plate for an abrasive wheel, comprising:
- a. a front surface and a back surface;
- b. an abrasive surface attachment portion on the front surface, to which an abrasive surface can be attached;
- c. a threaded attachment portion for securing the backing plate to a rotation source;
- d. a plurality of fan blades positioned on the front surface between the threaded attachment portion and the abrasive surface attachment portion, for directing air-flow over an abrasive surface attached to the abrasive surface attachment portion;
- and
- e. a central portion extending between the threaded attachment portion and the abrasive surface attachment portion, the plurality of fan blades being positioned on the central portion, wherein the central portion is closed to the passage of air from the front surface to the back surface.
An abrasive wheel, comprising:
- a. an abrasive disc having an abrasive surface and a depressed center portion;
- b. an integrally formed central portion affixed at least partially within the depressed center portion, the integrally formed central portion comprising:
- i. an attachment portion for attaching the abrasive disc to a rotation source;
- ii. a plurality of fan blades defining a spoon-shaped side profile for directing air-flow over the abrasive surface.
Dependencies are inferred from the claim text.