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| Number | Title | Issue Date |
| 5727473 | Rotary lock for a split ramp railway car A rotary locking mechanism connects an upper ramp and a lower ramp of a split ramp railway car. A pin carrier supports a coupling pin and is mounted to the lower ramp by a swivel pin. The pin carrier can pivot horizontally relative to the lower ramp. A du... | 03/17/1998 |
| 5480042 | Lock and coupler for a railway ramp car having fluid and electrical couplings A retainer is provided for retaining a catch mounted to a first portion of a split ramp car in its unlocked position as a second portion of a ramp car exits a locking area in which it is previously locked. An arm portion of the retainer extends into the l... | 01/02/1996 |
| 5456520 | Vehicle for transporting alternative substances in alternative containers A trailer for selectively transporting either a first or second substance is disclosed. The trailer includes a substantially flat bed and has two containers disposed thereon, each of which is capable of storing a different type of substance. An operator m... | 10/10/1995 |
| 5445083 | Lock and coupler for a railway ramp car A retainer is provided for retaining a catch mounted to a first portion of a split ramp car in its unlocked position as a second portion of a ramp car exits a locking area in which it is previously locked. An arm portion of the retainer extends into the l... | 08/29/1995 |
| 5222443 | Railway ramp car A ramp car for loading and unloading vehicles comprises first and second ramps mounted respectively to first and second wheel sets. The first and second ramps extend toward each other in a lowered loading position for providing access for vehicles to a tr... | 06/29/1993 |
