Patent information:

Patent:Utility 893,285
Patented:July 14, 1908
Applied:August 18, 1906
Title:Electric Cable Insulator
Description:Terminal insulator providing a tight seal between conductor running down through the center of the insulator
Category:Insulator
Assigned to: 

Patentee Information:

TOMPKINS, Edward M. Chicago, IL

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:75RCONDUITS, CABLES OR CONDUCTORS Combined With end structure With joint;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:167INSULATORS With conductor receiving aperture or bushing type;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:196INSULATORS With terminal elements Pin type Plastic material adhered;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:202INSULATORS With terminal elements Pin type Screw or bayonet type;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:76CONDUITS, CABLES OR CONDUCTORS Combined With end structure Plastic filled;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:80CONDUITS, CABLES OR CONDUCTORS Combined With end structure With insulator skirts;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1