US 9,803,368 B1Granted

Methods and systems of preparing and installing custom-made spiral staircases

OwnerPaul David Stehlinventor

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Abstract

Described herein are systems and methods of manufacturing a spiral staircase assembly for custom projects. A method may include coupling a plurality of stairs to a center column such that distances between adjacent stairs of the plurality of stairs deviates less than ½″ to meet code. A method may further include cutting the center column after coupling the plurality of stairs to the center column to form a first center column and a second center column. A method may further include welding a female column coupling to a first end of the first center column and welding a male column coupling to a first end of the second center column. The male column coupling is configured to couple to the female column coupling such that when the male column coupling is coupled to the female column coupling, distances between adjacent stairs of the plurality of stairs deviates less than ½″.

Claims14

Dependent claims

A method of manufacturing a spiral staircase assembly, the method comprising:

affixing a plurality of stairs to a center column, the plurality of stairs comprising, among others, a first stair and a second stair adjacent to the first stair;
cutting the center column between the first stair and the second stair after affixing the plurality of stairs to the center column, wherein cutting the center column divides the center column into a first center column and a second center column;
and
welding a male column coupling to a first end of the second center column after cutting the center column that has the second stair affixed, the male column coupling sized and shaped to mate with a first end of the first center column such that when the male column coupling is mated with the first end of the first center column coupling each stair of the plurality of stairs has at least one distance between a top surface of the stair and a top surface of at least one adjacent stair, the distances between the top surface of each stair and the top surface of each adjacent stair is within a ½″ deviation of all other distances between the top surfaces of the adjacent stairs.

1 more element

A method of manufacturing a custom spiral staircase assembly, the method comprising:

determining a custom spiral staircase height at an installation site for a spiral staircase assembly;
determining a number of individual stairs of a plurality of stairs to position within the custom height of the spiral staircase assembly;
determining a distance between top surfaces of adjacent stairs of the plurality of stairs such that each stair of the plurality of stairs has at least one distance between the top surface of the stair and the top surface of at least one adjacent stair and the distances between the top surface of each stair and the top surface of each adjacent stair is within a ½″ deviation of all other distances between the top surfaces of adjacent stairs;
affixing the plurality of stairs to a center column, the plurality of stairs comprising, among others, a first stair and a second stair adjacent to the first stair;
and
cutting the center column between the first stair and the second stair after affixing the plurality of stairs to the center column to form a first center column with a first plurality of stairs of the plurality of stairs including the first stair affixed thereto, and a second center column with a second plurality of stairs of the plurality of stairs including the second stair affixed thereto.

3 more elements

Dependencies are inferred from the claim text.