US 6,500,220 B1
Impregnated grinding wheel
Mark K. Krueger,
Loveland, Ohio (US);
Soo C. Yoon,
Cincinnati, Ohio (US);
Ken G. Forney,
Cincinnati, Ohio (US);
Henry Turchin,
Liberty Township, Ohio (US);
and Cor A. Smits,
Bethel, Ohio (US)
Assigned to Cimcool Industrial Products, Inc.,
Cincinnati, Ohio (US)
Filed on 19-Feb-2002, as Appl. No. Cimcool Industrial Products, Inc.,
Cincinnati, Ohio (US)
Int. Cl.7B24B 1/00
U.S. Cl. 51-306
41 Claims
US 6,500,220 B1
Impregnated grinding wheel
Mark K. Krueger,
Loveland, Ohio (US);
Soo C. Yoon,
Cincinnati, Ohio (US);
Ken G. Forney,
Cincinnati, Ohio (US);
Henry Turchin,
Liberty Township, Ohio (US);
and Cor A. Smits,
Bethel, Ohio (US)
Assigned to Cimcool Industrial Products, Inc.,
Cincinnati, Ohio (US)
Filed on Feb. 19, 2002, as Appl. No. 10/78,036.
Int. Cl.7B24B 1/00
U.S. Cl. 518212;306
41 Claims
1. A vitreous bonded abrasive article comprising a plurality of abrasive grains, a vitreous matrix binding together the abrasive
grains and having distributed therein a plurality of open pores, at least a portion of said pores containing as an impregnant
therein a grinding aid wherein said impregnant comprises at least one water insoluble, sulfur bearing organic substance said
substance having at least one carbon to sulfur bond, at least about 5% by weight sulfur and a melting point of at least about
30° C. said melting point being at least 10° C. below the decomposition temperature of the substance and selected from the
group consisting of substituted and unsubstituted aliphatic, aromatic, cycloaliphatic, alkenyl, alkynyl, alkylaryl, arylalkyl
and substituted heterocyclic sulfur bearing organic substances or a mixture of said substances, said impregnant being free
of a medium, other than said substance, in which said substance or mixture of said substances is dissolved or dispersed.