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US 6,763,912 B2Granted
Modular stair assembly
AssigneeCentury Group, L.L.C.
InventorsRobby C. Robinson, Gerukl M. McCombs
Life of this patent
Estimating the term…
Abstract
A modular stair assembly includes a stair module and at least one of a transportation module, deck module, handrail module, extension deck module, and extension handrail module that can be interconnected in various configurations to suite a wide variety of different applications.
Claims9
A modular stair assembly, comprising:
- a stair module supportable and freestanding on a surface, the stair module having a plurality of steps removably connected between a pair of spaced side frames;
- and
- a plurality of optional modules removably connected to the stair module to result in different structures of the stair assembly to suit a wide variety of applications, the optional modules comprising a deck module, wherein the deck module comprises:
- a generally horizontal platform portion substantially coplanar to an uppermost step of the stair module;
- and
- a pair of spaced C-shaped side frames each having, a generally, horizontally extending bottom member having a free proximal end supportable on a surface, a generally, horizontally extending top member having a free proximal end supporting the platform portion, a generally vertical member extending between distal ends of the bottom and top members, and connection tabs extending from the proximal ends of the bottom and top members for removably engaging the side frames of the stair module.
3 more elements
A modular stair assembly, comprising:
- a stair module supportable and freestanding on a surface, the stair module having a plurality of steps removably connected between a pair of spaced side frames;
- a module removably connected to the stair module wherein the module is a first handrail module extending in a generally horizontal direction a length generally coterminous with the side frames of the stair module, or a deck module, the deck module comprising:
- a generally horizontal platform portion substantially coplanar to an uppermost step of the stair module;
- and
- a pair of spaced C-shaped side frames each having a generally, horizontally extending bottom member having a free proximal end supportable on a surface, a generally, horizontally extending top member having a free proximal end supporting the platform portion, a generally vertical member extending between distal ends of the bottom and top members, and connection tabs extending from the proximal ends of the bottom and top members removably engaging the side frames of the stair module;
- and
- optionally a second handrail module removably connected to the stair module and removably connected to the deck module, the second handrail module extending in a generally horizontal direction a length generally coterminous with a length defined by the stair module connected to the deck module.
4 more elements
A modular stair assembly, comprising:
- a stair module supportable and freestanding on a surface, the stair module having a plurality of steps removably connected between a pair of spaced side frames;
- and
- at least one of a plurality of modules removably connected to the stair module to result in different structures of the stair assembly to suit a wide variety of applications, the plurality of modules comprising:
- a first handrail module extending in a generally horizontal direction a length generally coterminous with the side frames of the stair module;
- a deck module, the deck module comprising:
- a generally horizontal platform portion substantially coplanar to an uppermost step of the stair module;
- and
- a pair of spaced C-shaped side frames each having a generally, horizontally extending bottom member having a free proximal end supportable on a surface, a generally, horizontally extending top member having a free proximal end supporting the platform portion, generally vertical member extending between distal ends of the bottom and top members, and connection tabs extending from the proximal ends of the bottom and top members removably engaging the side frames of the stair module;
- and
- a second handrail module extending in a generally horizontal direction a length generally coterminous with a length defined by the stair module connected to the deck module.
7 more elements
Dependencies are inferred from the claim text.