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US 5,733,225 AGranted
Playground apparatus
AssigneeLandscape Structures Inc.
InventorsRandall G. Watermiller, Steven G. King
Life of this patent
Estimating the term…
Abstract
A playground apparatus is disclosed which includes four upright posts secured in the ground in a square configuration. Playground apparatus further includes four curved beam members formed from substantially rigid material, each of which is pivotally connected at its midpoint. The adjacent ends of the beams are interconnected by a resilient spring assembly, and the assembled beams define a ring-like support surface upon which children can stand and jump, producing undulating and resilient motion.
Claims17
Playground apparatus comprising:
- a plurality of upright support means disposed in spaced relation and defining a polygon;
- and
- a beam assembly comprising:
- a like plurality of beam members each having first and second ends and an intermediate point therebetween, said ends and intermediate point subtending an angle generally corresponding to an angle of the polygon;
- each beam member being movably connected at said intermediate point to an associated upright support means to be generally horizontally disposed in an at rest position;
- and
- resilient connection means interconnecting the ends of adjacent beam members to each other so that the beam assembly defines a beam surface upon which children can stand and jump, the resilient connection means being constructed and arranged to permit the beam members to be resiliently moved relative to each other in response to weighting movement by one or more children on said beam surface.
4 more elements
Dependencies are inferred from the claim text.