Patent information:
| Patent: | Utility 1,819,302 |
| Patented: | August 18, 1931 |
| Applied: | September 9, 1927 |
| Title: | Oil and Air Break Pothead Disconnect |
| Description: | Pothead disconnect |
| Category: | Insulator |
| Assigned to: | G. & W. Electric Specialty Co. |
Patentee Information:
| RAH, Joseph | Chicago, IL |
Class and subclass information:
| Class: | 218 | HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES |
| Subclass: | 91 | |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 17CT | WITH FLUIDS OR VACUUM; Boxes and housings; Closures, terminals, gaskets; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 18 | WITH FLUIDS OR VACUUM; Boxes and housings; With bushing, terminal or lead-in; |
| Class: | 218 | HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES |
| Subclass: | 97 | |
| Class: | 439 | ELECTRICAL CONNECTORS |
| Subclass: | 750 | WITH INSULATION OTHER THAN CONDUCTOR SHEATH; Metallic connector or contact secured to insulation; Insulating tube, sleeve, or cap concentrically surrounding part of connector; |
Known specimens:
| Number: | U 190 |
| Number: | U 190A |
Drawings:
Page 1 |
Page 2 |