Patent information:

Patent:Utility 2,254,227
Patented:September 2, 1941
Applied:April 22, 1937
Title:Glass Tempering Method and Apparatus
Description:Glass tempering of suspension insulators in a controlled manner
Category:Glass
Assigned to:Corning Glass Works

Patentee Information:

LEWIS, Evan J. Corning, NY

Class and subclass information:

Class:65GLASS MANUFACTURING
Subclass:115PROCESSES Glass preform treating Tempering Differential or localized;
Class:65GLASS MANUFACTURING
Subclass:348PRODUCT COOLING MEANS (E.G., TEMPERING);

Known specimens:

None known

Drawings:

Drawing page 1

Page 1