Patent information:

Patent:Utility 2,392,342
Patented:January 8, 1946
Applied:January 18, 1943
Title:Combined Spark Gap and Insulator
Description:CD 186, CD 186.1, CD 186.2; Transparent glass insulator with spark gap within the insulator for signal circuits
Category:Spark Gap
Assigned to:Line Material Co.

Patentee Information:

STEINMAYER, Alwin G. Milwaukee, WI

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:140RINSULATORS Combined With conductive arcing or stress distributing means;
Class:313ELECTRIC LAMP AND DISCHARGE DEVICES
Subclass:243WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE AND/OR SHIELD For plural electrodes of discharge device;
Class:313ELECTRIC LAMP AND DISCHARGE DEVICES
Subclass:326ELECTRODE AND SHIELD STRUCTURES;
Class:313ELECTRIC LAMP AND DISCHARGE DEVICES
Subclass:335ELECTRODE AND SHIELD STRUCTURES With lead wire or connector Rod electrode or shield;
Class:361ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES
Subclass:132SAFETY AND PROTECTION OF SYSTEMS AND DEVICES High voltage dissipation (e.g., lightning arrester) Combined (e.g., with disconnect switch) With line supporting insulator;

Known specimens:

Number:CD 186
Number:CD 186.1
Number:CD 186.2

Drawings:

Drawing page 1

Page 1