Patent information:
| Patent: | Utility 771,297 |
| Patented: | October 4, 1904 |
| Applied: | May 16, 1903 |
| Title: | Insulator |
| Description: | Oil reservoir for transformer insulator |
| Category: | Oil |
| Assigned to: | Stanley Electric Mfg. Co. |
Patentee Information:
| CHESNEY, Cummings C. | Pittsfield, MA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 31R | WITH FLUIDS OR VACUUM; Insulators; Axial passage and/or through wall or plate; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 31.5 | WITH FLUIDS OR VACUUM; Insulators; Axial passage and/or through wall or plate; Liquid sealed joint; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 152R | INSULATORS; Through wall or plate; Bushing type; |
Known specimens:
| None known |
Drawings:
Page 1 |