Exercise structure and ball game

Details Exercise structure and ball game Exercise structure and ball game

1979-05-16

1984-02-28

Chin, Peter

Undertaking

273401, 273411, A63B 500

Patent

active

044338384

ABSTRACT:
A structure for use as an exercise compartment and a method for playing a ball game therein is disclosed. The structure has a horizontal rebound surface which is supported above the ground and has means for enclosing the air space above said surface to form a cell, said cell being of a size suitable for enclosing at least one human using said surface as a springboard for exercise or for playing the ball game.

REFERENCES:
patent: D187138 (1960-02-01), Highberger
patent: 2324970 (1943-07-01), Wooley
patent: 2858132 (1958-10-01), Sidlinger
patent: 3116809 (1964-01-01), Nissen
patent: 3201126 (1965-08-01), Nissen
patent: 3256021 (1966-06-01), Nissen et al.
patent: 3310305 (1967-03-01), Howe
patent: 3356366 (1967-12-01), Barthel
patent: 3837643 (1974-09-01), Lee
patent: 4045021 (1977-08-01), Nissen
patent: 4119311 (1978-10-01), Jenkins et al.

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