Norton Company

Brian E Swanson

Charles V Rue

David A Sheldon

Paul W Kalinowski

Muni S Ramakrishnan

Kesh S Narayanan

Carole J Markhoff-Matheny

John Hay

Robert L Holden

William L Bouchard

Charles W Sudol

Suresh S Vagarali

Resinoid and vitrified bonded abrasive products containing filament shaped sintered alumina based abrasive made up predominantly of fine alpha alumina crystals.

Bonded abrasive products containing sintered sol gel alumina abrasive

A two zoned grinding wheel is disclosed having a lower section or zone composed of bonded abrasive grain and an upper zone or section made up of bonded particles of a material that is softer than the abrasive grain and therefore less abrasive. The wheel is especially suitable for being held in clamps or a chuck when being used, with the clamps or chuck contacting the wheel on the upper less abrasive section thus greatly reducing wear on said clamp or chuck.

Composite grinding wheel

A grinding wheel is disclosed which is made up of sintered aluminous abrasive and a vitrified bond, the vitrified bond being a frit. A large portion of the sintered aluminous abrasive may be replaced by a non-sintered abrasive and the bond may include fillers and/or grinding aids.

Frit bonded abrasive wheel

A combination of fused alumina grits with sintered gel alumina abrasive grits is shown to be more effective than either abrasive alone in cutting steel bars with bonded abrasive wheels at intermediate cutting speeds.

Grinding wheel with combination of fused and sintered abrasive grits

Growing community of inventors

Northboro, MA, United States of America

Brian E Swanson