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| Number | Title | Issue Date |
| 7367766 | Screw and nut fastening device A device for fastening two parts to each other includes fastening screws extending in aligned passages in the two parts and receiving nuts, and a removable element for preventing the screw heads from moving during tightening or loosening of the nuts on the screws, t... | 05/06/2008 |
| 4485967 | Mechanical joint A connection for connecting a pair of rail members end to end, each rail member having a base, web, and a railhead. The connection comprises a tongue projecting endwise from the railhead of one rail member into a slot in the railhead of the other rail mem... | 12/04/1984 |
| 4466570 | Multi-segment electrically insulated rail joint An insulated joint is provided for use between sections of rail that are disposed in adjacent signal circuits. The insulated joint includes a separator disposed between a pair of dielectric end posts. The end posts have a plan configuration substantially ... | 08/21/1984 |
