Patent information:
| Patent: | Utility 224,580 |
| Patented: | February 17, 1880 |
| Applied: | December 24, 1879 |
| Title: | Induced Current Guard for Electrical Conductors |
| Description: | Pre-transposition technique to eliminate induced current on telephone and telegraph wires |
| Category: | Transposition |
| Assigned to: |
Patentee Information:
| CHINNOCK, Charles E. | Brooklyn, NY |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 32 | ANTI-INDUCTIVE STRUCTURES; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 45R | OVERHEAD; Towers, poles or posts; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 140R | INSULATORS; Combined; With conductive arcing or stress distributing means; |
| Class: | 307 | ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS |
| Subclass: | 90 | |
| Class: | 361 | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| Subclass: | 132 | SAFETY AND PROTECTION OF SYSTEMS AND DEVICES; High voltage dissipation (e.g., lightning arrester); Combined (e.g., with disconnect switch); With line supporting insulator; |
Known specimens:
| None known |
Drawings:
Page 1 |