Abrading Disc
AssigneeStone Pro Equipment Company
InventorBarry D. Brandt
Life of this patent
Estimating the term…
Abstract
A rotating circular disc attaches to a rotary motion abrading tool and converts the rotary motion to a random orbital motion. The disc has a center and has an axis of rotation that is off center and that forms a center of gravity. One embodiment of the disc is a backing plate. A second embodiment of the disc is a polishing pad. A third embodiment of the disc is a combination of a backing plate and a polishing pad.
Claims15
An abrading disc for attachment to a rotary motion abrading tool that converts the rotary motion to a random orbital motion, the disc having a center, an axis of rotation that is off center and that forms a center of gravity, and a means for attachment to a rotary motion abrading tool.
A backing plate for a rotary motion abrading tool that converts the rotary motion to a random orbital motion, the backing plate comprising a circular plate having a center, a working face for attachment of a circular polishing pad, an opposed face with an arbor extending outwardly from the opposed face that defines an axis of rotation, the axis of rotation being off center and forming a center of gravity when a circular polishing pad is attached to the working face.
An assembly for a rotary motion abrading tool that converts the rotary motion to a random orbital motion, the assembly comprising:
- (a) a backing plate comprising a circular plate having a center, a working face for attachment of a circular polishing pad, an opposed face with an arbor extending outwardly from the opposed face that defines an axis of rotation, the axis of rotation being off center;
- and
- (b) a circular polishing pad attached to the working face of the backing plate, the pad being of substantially the same size as the working face;
- wherein the assembly has a center of gravity that is on the axis of rotation.
Dependencies are inferred from the claim text.