Patent information:

Patent:Utility 1,997,666
Patented:April 16, 1935
Applied:May 3, 1933
Title:Insulator
Description:RFI multipart design with metal cap over crown with extension over coated area of top shell and metallic coating on each shell below cement joint
Category:RFI
Assigned to:Westinghouse Electric & Mfg. Co.

Patentee Information:

WHISLER, George M. Berkeley, CA

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:140CINSULATORS Combined With conductive arcing or stress distributing means Coated;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:196INSULATORS With terminal elements Pin type Plastic material adhered;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:210INSULATORS Sectional, multi-part, composite, or coated Pin socket type;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1