Multi-purpose arena

Details Multi-purpose arena Multi-purpose arena

1993-04-16

1995-11-21

Mai, Lanna

Amusement devices

Illusion or stage device

Stage apparatus or setting

472 92, 52 7, 521265, E04B 900

Patent

active

054681901

ABSTRACT:
A multipurpose arena has a platform providing a performing, playing or exhibition area which can be raised or lowered to allow for different configurations of banked seating. The raising and lowering is achieved by displacement of air in or out of an air vessel formed beneath the platform, either by a hull floating in a well which can be emptied of water by air pressure or scuttled, or by a skirt depending from the platform and sealed to underlying structure. If a skirt is used, space can be reclaimed within a structure inside the skirt which provides a reaction surface for the air pressure. The skirt may be sealed to the underlying structure by a water seal in a trough, or by sealing the lower edge of a telescoping skirt to the structure.

REFERENCES:
patent: 3399887 (1968-09-01), Altier
patent: 4735024 (1988-04-01), Rosato et al.
patent: 4907793 (1990-03-01), Wund
patent: 4912890 (1990-04-01), Hoyeck
patent: 4937896 (1990-07-01), Niimura
patent: 5103600 (1992-04-01), Geiger et al.

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