Patent information:

Patent:Utility 2,988,852
Patented:June 20, 1961
Applied:December 11, 1957
Title:Method of Thermally Sealing Hollow Glass Articles at Minimal Temperatures
Description:Glass to glass seal for glass blocks
Category:OI
Assigned to:Owens-Illinois Glass Co.

Patentee Information:

HENRY, Kenneth M. Toledo, OH

Class and subclass information:

Class:65GLASS MANUFACTURING
Subclass:34PROCESSES With sealing off of gas evacuating opening;
Class:65GLASS MANUFACTURING
Subclass:56PROCESSES Fusion bonding of glass to a formed part With severing, perforating, or breaking of glass;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1