Patent information:

Patent:Utility 1,536,749
Patented:May 5, 1925
Applied:December 3, 1919
Title:Insulator
Description:Multipart (RFI) with sanded, metal coated groove & cement (see 1,284,975)
Category:Multipart
Assigned to:The Ohio Brass Co.

Patentee Information:

AUSTIN, Arthur O. Barberton, OH

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:140CINSULATORS Combined With conductive arcing or stress distributing means Coated;
Class:29METAL WORKING
Subclass:887METHOD OF MECHANICAL MANUFACTURE Electrical device making Insulator making;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:126.4CONDUITS, CABLES OR CONDUCTORS Conductor structure (nonsuperconductive) Metal coated on insulation;
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