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US 2004/0166788 A1Published application
Sanding disc
OwnerGeorge Travisinventor
Life of this patent
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Abstract
A sanding disc comprising an integral structure having a plurality of layers. The layers include a foam backing layer, a middle semi-resilient layer and an abrasive screen layer.
Claims20
A sanding disc comprising:
- a backing layer of a porous, resilient material;
- a middle layer of a nonporous, semi-resilient material bonded to said backing layer;
- and
- an abrasive screen layer bonded to said middle layer.
1 more element
A method of making a sanding disk for a motorized drywall sander, said method comprising:
- forming a foam backing layer in the shape of a disc having an inside and an outside diameter;
- attaching a nonporous, semi-resilient middle layer in the shape of a disc having an outside diameter larger than said outside diameter of said foam support layer;
- and
- securing an abrasive screen to said middle layer, said abrasive screen having an outside diameter substantially similar to said outside diameter of said middle layer.
1 more element
A high speed sanding disc for sanding drywall joints, said sanding disc comprising:
- an integral structure having a plurality of layers, said plurality of layers comprising:
- an abrasive screen;
- a nonporous, semi-resilient layer bonded to said abrasive screen;
- and
- a foam pad bonded to said nonporous layer wherein said abrasive screen, said nonporous layer and said foam pad form said integral structure.
2 more elements
Dependencies are inferred from the claim text.