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US 4,065,882 AGranted
Grinding tool fitted with an abrasive sheet having active face and edge surfaces
OwnerGiuseppe D'Ursoinventor
Life of this patent
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Abstract
Grinding tool comprising a support or carrier with associated relatively resilient pad covered by a removable abrasive sheet, wherein said abrasive sheet has a central zone forming an active face and a marginal zone with removed portions bent over or folded against the tool edge without forming any folds or wrinkles and without any discontinuities adjacent the central zone forming an active corner or edge. Preferably, the tool is of frusto-conical shape.
Claims8
A rotary abrasive tool comprising:
- a rotary support having a substantially flat circular lower face and a peripheral edge;
- a resilient circular pad overlying said flat face and having a flat working face on the bottom thereof and a peripheral edge of substantial width;
- a sheet of abrasive coated material overlying said working face and having a multiplicity of edge tabs extending upwardly over said peripheral edges, said edge tabs being configured and arranged to lie against said peripheral edge in mutual edge-abutting relation to thereby define a smooth and continuous abrasive edge surface for said tool;
- and
- means releasably securing only the upper ends of said tabs to the peripheral edge of said support.
2 more elements
Dependencies are inferred from the claim text.