Patent information:
| Patent: | Utility 830,501 |
| Patented: | September 11, 1906 |
| Applied: | February 16, 1905 |
| Title: | Protecting Bushing for Electric Circuit Wires |
| Description: | Bushing with screw threads |
| Category: | Bushing |
| Assigned to: | Federal Electric Co. |
Patentee Information:
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 153G | INSULATORS; Through wall or plate; Bushing type; Opposed wall engaging means; Grommets; |
| Class: | 16 | MISCELLANEOUS HARDWARE |
| Subclass: | 2.2 | BUSHING; Providing a restricted or insulated environment (i.e., sealable) for internal elements; |
| Class: | 285 | PIPE JOINTS OR COUPLINGS |
| Subclass: | 47 | WITH CASING, LINING OR PROTECTOR; Insulated; |
| Class: | 285 | PIPE JOINTS OR COUPLINGS |
| Subclass: | 192 | END TO SIDE OR PLATE (E.G., REINFORCEMENT); Penetrating (e.g., secant); |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 366.1 | HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP; Headed bolt or screw with threads and complementary nut; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 411 | EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC.; Thread or shank structure; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 907 | FASTENER OR FASTENER ELEMENT COMPOSED OF NONMETALLIC MATERIAL; Elastomeric; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 960 | LOCKED BOLTHEAD OR NUT; Automatic base clutch; Friction; |
Known specimens:
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Drawings:
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