Patent information:

Patent:Utility 1,784,392
Patented:December 9, 1930
Applied:August 17, 1928
Title:Manufacture of Insulators
Description:Suspension insulator with glazed sanded surfaces to improve strength of cap
Category:Suspension
Assigned to:Locke Insulator Corp.

Patentee Information:

ROWLAND, Davidge H. Baltimore, MD

Class and subclass information:

Class:427COATING PROCESSES
Subclass:279NONUNIFORM COATING Vitreous coating;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:209INSULATORS Sectional, multi-part, composite, or coated;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:131WITH PRINTING OR COATING OF WORKPIECE (OUT OF MOLD) Coating with particulate material;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:601HEAT POLISHING (E.G., GLAZING, ETC.) OF INORGANIC ARTICLE SURFACE OUTSIDE OF MOLD Of clay containing block, tile, or brick;
Class:427COATING PROCESSES
Subclass:376.2WITH POST-TREATMENT OF COATING OR COATING MATERIAL Heating or drying (e.g., polymerizing, vulcanizing, curing, etc.) Fusion or softening of coating Inorganic coating Metal oxide- or silicon-containing coating (e.g., glazed, vitreous enamel, etc.);

Known specimens:

None known