Stair construction and method for making same
OwnerAlfred Jagemanninventor
Life of this patent
Estimating the term…
Abstract
Stair construction and process for producing same are provided wherein at least one wooden plate is provided to form a wooden shell which constitutes the stair outer surface. A reinforcement member and filler material are disposed within the interior stair space, and a resin sealing layer is provided between the wooden plate and the filler material to seal and protect the wood from the filler composition.
Claims16
In a stair comprising a non-removable wooden shell which essentially forms the stair surface, a reinforcement disposed in the interior space of said stair, a hardened filling composition poured into said space and connecting said wooden shell and reinforcement, the improvement comprising:
- a resin sealing layer disposed between said wooden shell and said filling composition, wherein said filling composition comprises cement-bonded concrete, said stair further comprising an attachment bridge disposed between said wooden shell and said filling composition.
In a process for producing a stair comprising providing a non-removable wooden shell to form the stair surface, and introducing a reinforcement and a hardenable filler composition into the interior space of said stair, the improvement comprising, providing a plurality of beveled plates to form said shell, simultaneously sealing and joining said beveled plates in the vicinity of their bevels with an adhesive strip, providing a resin sealing layer between said filler composition and said beveled plates, and forming attachment bridges between said beveled plates and said filler composition.
Dependencies are inferred from the claim text.