PAUL A PELLETIER
Broker in Millbury, MA
License number
Massachusetts 126313
Issued Date
Jul 17, 1991
Expiration Date
Feb 19, 1996
Type
Salesperson
Address
Address
Millbury, MA 01527
Professional information
Silicon Nitride Having A High Tensile Strength
US Patent:
5571760, Nov 5, 1996
Filed:
Oct 18, 1994
Appl. No.:
8/324937
Inventors:
Vimal K. Pujari - Northboro MA
Dennis M. Tracey - Medfield MA
Michael R. Foley - Oxford MA
Norman I. Paille - Oxford MA
Paul J. Pelletier - Millbury MA
Lenny C. Sales - Grafton MA
Craig A. Willkens - Sterling MA
Russell L. Yeckley - Oakham MA
Dennis M. Tracey - Medfield MA
Michael R. Foley - Oxford MA
Norman I. Paille - Oxford MA
Paul J. Pelletier - Millbury MA
Lenny C. Sales - Grafton MA
Craig A. Willkens - Sterling MA
Russell L. Yeckley - Oakham MA
Assignee:
Saint-Gobain/Norton Industrial Ceramics Corporation - Worcester MA
International Classification:
C04B 35587
US Classification:
501 97
Abstract:
A silicon nitride ceramic comprising:
a) inclusions no greater than 25 microns in length,
b) agglomerates no greater than 20 microns in diameter, and
c) a surface finish of less than about 8 microinches, said ceramic having a four-point flexural strength of at least about 900 MPa.