Patent information:

Patent:Utility 1,291,217
Patented:January 14, 1919
Applied:February 10, 1917
Title:Adjustable Suspension Insulator
Description:Suspension disk with adjustable length pin to equalize the potential across each disk to reduce arc-over
Category:Suspension
Assigned to: 

Patentee Information:

SONNEBORN, Sol S. 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:182INSULATORS With terminal elements Plural Cap and pin;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:189INSULATORS With terminal elements Cap type Plastic material adhered;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:196INSULATORS With terminal elements Pin type Plastic material adhered;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:201INSULATORS With terminal elements Pin type Through pin;
Class:200ELECTRICITY: CIRCUIT MAKERS AND BREAKERS
Subclass:DIG4High potential type insulation;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1