Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Reexamination Certificate
2005-03-15
2005-03-15
Marcheschi, Michael (Department: 1755)
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
C051S298000, C051S307000, C051S308000, C051S309000, C051S297000
Reexamination Certificate
active
06866692
ABSTRACT:
A non-woven abrasive article of interlaced fibers and abrasive particles and a binder which is preformed into a predetermined three dimensional shape and a method for manufacturing the same. The abrasive article is preformed by a thermal setting the abrasive article while it is maintained in a predetermined three dimensional shape or by heating the article to its glass transition temperature and then cooling the article below the glass transition temperature while it is maintained in a predetermined three dimensional shape. This method allows the manufacture of preformed abrasive articles in various three dimensional shapes, including, for example, a bull nosed shape suitable for finishing a concavely curved surface.
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Emerson Grahame
Salyards Michael
Foley & Lardner LLP
Marcheschi Michael
Tepco Ltd.
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