Spiral climb in surrounding enclosure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 29, 2000
Grant Date -
N/A
app pub date -
Dec 7, 1998
filing date -
Dec 7, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A modular spiral staircase within a surrounding enclosure for indoor playground equipment is disclosed. The modular spiral staircase includes individual stair treads arranged in a spiral pattern within the surrounding enclosure. The individual stair treads are vertically connected to one another and are circumferentially connected to the surrounding enclosure. Preferably, arcuate tread segments each having a plurality of integrally connected individual stair treads are provided. The individual stair treads are laterally offset from each other and are circumferentially arranged in a spiral pattern about an associated supporting central post. The surrounding enclosure includes enlarged spaced lower and upper openings that are aligned with the modular spiral staircase to facilitate entry and exit of a user.
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Family
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Cited Art Landscape
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