Laterally Collapsible Staircase
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United States of America Patent
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Issued Date -
May 16, 2024
app pub date -
Nov 9, 2023
filing date -
Nov 10, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A laterally collapsible staircase with first and second side rails has a number of advantages compared to prior structures. A leveling screw is connected to the second side rail bottom surface to adjust the position of the stairs when deployed to insure that the stairs are horizontal. The second rail has a top side edge extending between its top and bottom and a recessed area extends along the second rail top side edge allowing a user's fingers to grip the rail to facilitate its movement between laterally collapsed and deployed positions. At least one permanent magnet is connected to the second side rail inner surface capable of interacting with another aligned permanent magnet mounted in a wall to help maintain the second side rail in a laterally collapsed position until intentionally moved. Pre-calibrated gas struts eliminate racking, jiggle, and bounce of the staircase.
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