Multi-purpose stadium

Details Multi-purpose stadium Multi-purpose stadium

1989-05-31

1992-04-14

Murtagh, John E.

Static structures (e.g., buildings)

With stadium or auditorium feature

52 7, 521265, 52 66, E04B 118

Patent

active

051036002

ABSTRACT:
This invention provides for a multi-purpose stadium which includes a first activity area having a natural turf playing field and a second activity area positioned below the first activity area. The first activity area is supported on a platform vertically movable with respect to the second activity area allowing for spectator sightlines to be satisfied for events occurring within the first and second activity areas. The first activity area is supported within the stadium by a plurality of piers. Each pier includes a hollow column with a continuous slot on the interior face thereof which supports a hydraulic lifting device. The hydraulic lifting devices vertically move the first activity area relative to the second activity area. Alternatively, a counterweight system may be employed to lift the first activity area.

REFERENCES:
patent: 1559739 (1925-11-01), Brown
patent: 3263380 (1966-08-01), Bourbonnais
patent: 3394505 (1968-07-01), Rife
patent: 3399887 (1968-09-01), Altier
patent: 3975869 (1976-08-01), Bouton
patent: 4452848 (1984-06-01), Geiger
patent: 4472470 (1984-09-01), Modic
patent: 4608785 (1986-09-01), Rhodes et al.
patent: 4637496 (1987-01-01), Atkey et al.
patent: 4686799 (1987-08-01), Kwake
patent: 4831792 (1989-05-01), Berger
patent: 4907793 (1990-03-01), Wund

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