Patent information:
Patent: | Utility 3,582,538 |
Patented: | June 1, 1971 |
Applied: | December 22, 1969 |
Title: | Prestressed Insulator |
Description: | Prestressing post type insulators by making porcelain in compression in order to increase cantilever load |
Category: | Post Type |
Assigned to: | Interpace Corp. |
Patentee Information:
Class and subclass information:
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 158R | INSULATORS; With insulator-supporting or attaching means; |
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 169 | INSULATORS; With conductor holding means; Fitting or terminal type; |
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 178 | INSULATORS; With terminal elements; Plural; Multi-part, sectional or composite insulator; |
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 179 | INSULATORS; With terminal elements; Plural; Multi-part, sectional or composite insulator; Protected rod type; |
Known specimens:
|
Drawings:
Page 1 |
Page 2 |
|