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| Number | Title | Issue Date |
| 5531408 | Railroad switch stand A railroad switch stand for actuating a rail switch between open and thrown positions includes, in one embodiment, an upstanding frame supporting a handwheel at approximately chest height for movement between a first position enabling manual rotation of a... | 07/02/1996 |
| 5270514 | Method and apparatus for flash butt welding railway rails A welding method and apparatus for flash butt welding adjacent ends of axially aligned railway rails includes a base frame and fixed and movable platens supported on the base frame. The platens support rail sections and are under the control of controller... | 12/14/1993 |
| 5183519 | Method for quenching railway rail heads A method of air quenching a railway rail with an apparatus develops a pearlite microstructure in the head of the longitudinally travelling rail as it travels under the apparatus. A primary air chamber at a controlled pressure provides air to the top and s... | 02/02/1993 |
| 4953787 | Two piece rail fastening assemblies for wooden cross ties A boltless two-piece rail fastening assembly for securing a railway rail, supported on a conventional tie plate, to a wooden cross tie is comprised of a chair and a rail clip latched thereon. The chair includes a body, having a jaw with a bight configured... | 09/04/1990 |
| 4938460 | Apparatus for air quenching railway heads Air quenching apparatus develops a pearlite microstructure in the head of a longitudinally travelling railroad rail as it travels under the apparatus. A primary air chamber at a controlled pressure provides air to the top and side surfaces of the rail hea... | 07/03/1990 |
| 4844337 | Railway rail assembly A main railway rail and a guard rail are maintained in spaced apart relationship on a tie plate having a shoulder located between the rails by an elastically deformed clip. The clip has two end lengths extending from opposite ends of a central length. One... | 07/04/1989 |
| 4832261 | Railway rail fastening assembly A compact, low profile, boltless, two piece railway rail fastening assembly for secring a railway to a conventional tie plate having spike holes enabling the tie plate to be affixed to a wooden cross tie. The assembly includes a drive-on, generally platel... | 05/23/1989 |
