Freestanding Modular Spiral Staircase
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United States of America Patent
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Issued Date -
May 6, 2021
app pub date -
Oct 23, 2020
filing date -
Oct 31, 2019
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A freestanding, adjustable, modular spiral staircase embodied in a unique method of spiral staircase design is provided. The steps of the spiral staircase are arrayed and supported in a circular pattern around a central column with the outside edges or leading or trailing corners of the steps are supported by three peripheral columns, while step posts interconnect adjacent steps. Many parts are interchangeable and the steps adjustable to allow for shortening or lengthening the staircase. The base of the staircase unit is heavy to provide maximum stability and to prevent tipping.
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Family
International Classification(s)
Cited Art Landscape
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