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US 6,640,728 B1Granted
Passenger rail car sliding door with high platform threshold
AssigneeAAI Corporation
InventorRobert J. Neugebauer
Life of this patent
Estimating the term…
Abstract
An improved door assembly having a single movable door and a separate movable high platform threshold. The door assembly is formed of an upper door section and a lower door section fixed to the upper door section. A support member can be slidably engaged with the door assembly. A solenoid may also be disposed in the door assembly.
Claims3
An apparatus comprising:
- a rail passenger car having a door assembly formed of an upper door section and a lower door section fixed to the upper door section, the door assembly being slidable in the rail passenger car in an opening direction;
- a support member, the support member being located on an interior side of the door assembly and being moveable with respect to the door assembly along a direction substantially parallel to the opening direction;
- and
- a stairwell platform hingedly attached to the rail passenger car and movable between an upper position permitting low level access via stairs and a lower position of engagement with the support member permitting high level access above the stairs, wherein
- the upper door section remains fixed to the lower door section when the stairwell platform is engaged with the support member, such that the door assembly slides as a single unit when the stairwell platform is in the upper position and when the stairwell platform is in the lower position.
2 more elements
An apparatus comprising:
- a rail passenger car having a door assembly formed of an upper door section and a lower door section fixed to the upper door section, the door assembly being slidable in the rail passenger car in an opening direction;
- a support member, and
- a stairwell platform hingedly attached to the rail passenger car and movable between an upper position permitting low level access via stairs and a lower position of engagement with the support member permitting high level access above the stairs, wherein
- the support member is disposed as an angle iron fixed to the rail passenger car, and
- the upper door section remains fixed to the lower door section when the stairwell platform is engaged with the support member, such that the door assembly slides as a single unit when the stairwell platform is in the upper position and when the stairwell platform is in the lower position.
2 more elements
Dependencies are inferred from the claim text.