JOHN HAY
Engineering in Shrewsbury, MA
License number
Massachusetts 15800
Expiration Date
Jun 30, 1984
Type
Ceramic Engineer
Address
Address
Shrewsbury, MA 01545
Professional information
Nitrified Bonded Sol Gel Sintered Aluminous Abrasive Bodies
US Patent:
4997461, Mar 5, 1991
Filed:
Sep 11, 1989
Appl. No.:
7/405263
Inventors:
John Hay - Shrewsbury MA
David Rostoker - Sturbridge MA
David Rostoker - Sturbridge MA
Assignee:
Norton Company - Worcester MA
International Classification:
B24B 100
US Classification:
51295
Abstract:
Vitrified bonded abrasive bodies prepared from sol gel sintered aluminous grit particles and a vitreous (glass) bond exhibit improved abrasive performance by treating the surfaces of the grit particles so as to give them silica-enriched surfaces.
Vitrified Bonded Sol Gel Sintered Aluminous Abrasive Bodies
US Patent:
5131923, Jul 21, 1992
Filed:
Jun 11, 1990
Appl. No.:
7/536129
Inventors:
John Hay - Shrewsbury MA
David Rostoker - Sturbridge MA
David Rostoker - Sturbridge MA
Assignee:
Norton Company - Worcester MA
International Classification:
B24D 1100
US Classification:
51293
Abstract:
Vitrified bonded abrasive bodies prepared from sol gel sintered aluminous grit particles and a vitreous (glass) bond exhibit improved abrasive performance by treating the surfaces of the grit particles so as to give them silica-enriched surfaces.
Ceramic Bonded Grinding Wheel
US Patent:
4634453, Jan 6, 1987
Filed:
May 20, 1985
Appl. No.:
6/736158
Inventors:
John Hay - Shrewsbury MA
Leonard I. Smith - Princeton MA
George E. Foster - Dudley MA
Leonard I. Smith - Princeton MA
George E. Foster - Dudley MA
Assignee:
Norton Company - Worcester PA
International Classification:
B24D 300
US Classification:
51293
Abstract:
A method for making grinding wheels having an annular grinding section mounted on a central hub in which a slurry of abrasive particles and ceramic bond is coated on a pre-formed core, shaped, and fired. Method has particular advantage in formation of wide wheels and contoured wheels. Premium abrasive may be employed in the wheels.
Frit Bonded Abrasive Wheel
US Patent:
4898597, Feb 6, 1990
Filed:
Aug 25, 1988
Appl. No.:
7/236586
Inventors:
John Hay - Shrewsbury MA
Brian E. Swanson - Northboro MA
Brian E. Swanson - Northboro MA
Assignee:
Norton Company - Worcester MA
International Classification:
C09K 314
US Classification:
51298
Abstract:
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.