Patent information:

Patent:Utility 880,203
Patented:February 25, 1908
Applied:September 9, 1907
Title:Insulator
Description:Suspension insulator with petticoat
Category:Suspension
Assigned to: 

Patentee Information:

DUNCAN, John D. E. Brooklyn, NY

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:141RINSULATORS Combined With conductive arcing or stress distributing means Strings or stacks;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:196INSULATORS With terminal elements Pin type Plastic material adhered;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:199INSULATORS With terminal elements Pin type Expanded;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:210INSULATORS Sectional, multi-part, composite, or coated Pin socket type;
Class:191ELECTRICITY: TRANSMISSION TO VEHICLES
Subclass:42CONDUCTORS Trolley Supports Combined ears and insulator;
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:325MISCELLANEOUS DISCHARGE DEVICES;
Class:313ELECTRIC LAMP AND DISCHARGE DEVICES
Subclass:326ELECTRODE AND SHIELD STRUCTURES;
Class:313ELECTRIC LAMP AND DISCHARGE DEVICES
Subclass:357ELECTRODE AND SHIELD STRUCTURES Rods;
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:Specimen known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2