Playground apparatus

Details Playground apparatus Playground apparatus

1996-06-04

1998-03-31

Donnelly, Jerome

Exercise devices

Gymnastic

Play area climbing or traversing arrangement

482148, 472137, A63B 900

Patent

active

057332258

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.

REFERENCES:
patent: D160419 (1950-10-01), Packer
patent: 798730 (1905-09-01), Johnson
patent: 1877833 (1932-09-01), Ferrell
patent: 3905548 (1975-09-01), Goff
patent: 4378112 (1983-03-01), Goldstein
patent: 4838726 (1989-06-01), Lucas Huerta
patent: 5356354 (1994-10-01), Owens
patent: 5364313 (1994-11-01), Nickelson

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