Pool stair assemblies having stair structures fabricated from plastic foam are provided. The stair structures include protective tread sheets and protective riser sheets and a vinyl pool liner mounted over the stair structure, tread sheets, and riser sheets. The stair structure, which may be buoyant, is retained in a pool by the weight of pool water on the liner and stair structure. Aspects of the invention overcome the disadvantages of conventional pool stair assemblies and ladders positioned on top of pool liners. Other related pool structures, methods of installing stair assemblies, stair structures, and methods of fabricating stair structures are also disclosed.

Pool stair assemblies having stair structures fabricated from plastic foam are provided. The stair structures include protective tread sheets and protective riser sheets and a vinyl pool liner mounted over the stair structure, tread sheets, and riser sheets. The stair structure, which may be buoyant, is retained in a pool by the weight of pool water on the liner and stair structure. Aspects of the invention overcome the disadvantages of conventional pool stair assemblies and ladders positioned on top of pool liners. Other related pool structures, methods of installing stair assemblies, stair structures, and methods of fabricating stair structures are also disclosed.

In one embodiment, a handrail bracket for coupling a handrail to a portion of a ramp and/or platform assembly includes a first portion for coupling to a handrail system, and a second portion for supporting the handrail, the second portion being adjustably coupled to the first portion. In another embodiment, a ramp and/or platform assembly includes a handrail system coupled to the decking system at an interface, wherein the handrail system includes a pivoting bracket for adjustable handrail alignment to substantially align a handrail with the grade of the decking system.

A ramp transportation system for a wheelchair enables transportation, deployment, and retrieval of a portable ramp by a single wheelchair occupant in the absence of external aid. The device comprises: a platform, configured to support the width of a wheelchair for crossing the platform, having a sufficient stiffness to support a wheelchair and occupant load; a lifting mechanism interface in the platform, disposed at least near each end of the ramp, configured to support cantilever lifting forces on the ramp; a lifting element, configured to engage the lifting mechanism interface and to apply a force to raise and lower the platform between a raised, stowed position and a lowered position, suitable for traversal; and a motor, configured to supply sufficient force on the lifting element to raise and lower the platform.

A pet staircase may be formed by joining modular units to each other in succession and that overlie a household staircase. They are retained in position over the household staircase. Each modular unit has stairs and/or ramps. The treads may be adjusted so that they all are parallel to each other and extend horizontally.

An amusement park attraction system includes a user path extending through at least a portion of the amusement park attraction system, a railing extending along the user path, and a platform slidingly and rotatably coupled to the railing. The platform is configured to translate along the railing to position the platform relative to the user path, and the platform is configured to rotate relative to the user path to adjust between a stowed configuration and a deployed configuration.

A ramp assembly in accordance with one embodiment of the present disclosure includes a decking system and a handrail system, and an interface between the decking system and the handrail system and a support system pivotably coupled to the interface. Other embodiments include a swivel bracket and a method of assembling a ramp assembly.

In one embodiment of the present disclosure, a handrail system for a ramp assembly, the handrail system includes first and second handrail posts oriented substantially perpendicular to a ground surface, a handrail portion having first and second ends extending between the first and second handrail posts, wherein the handrail portion is substantially parallel to a ramping surface ramping from a first elevation to a second elevation at a grade, and first and second interfaces at the first and second ends of the handrail portion for interfacing with the first and second handrail posts. In another embodiment of the present disclosure, an adaptor is configured for a handrail portion.

Pool stair assemblies having stair structures fabricated from plastic foam are provided. The stair structures include protective tread sheets and protective riser sheets and a vinyl pool liner mounted over the stair structure, tread sheets, and riser sheets. The stair structure, which may be buoyant, is retained in a pool by the weight of pool water on the liner and stair structure. Aspects of the invention overcome the disadvantages of conventional pool stair assemblies and ladders positioned on top of pool liners. Other related pool structures, methods of installing stair assemblies, stair structures, and methods of fabricating stair structures are also disclosed.

Pool stair assemblies having stair structures fabricated from plastic foam are provided. The stair structures include protective tread sheets and protective riser sheets and a vinyl pool liner mounted over the stair structure, tread sheets, and riser sheets. The stair structure, which may be buoyant, is retained in a pool by the weight of pool water on the liner and stair structure. Aspects of the invention overcome the disadvantages of conventional pool stair assemblies and ladders positioned on top of pool liners. Other related pool structures, methods of installing stair assemblies, stair structures, and methods of fabricating stair structures are also disclosed.