William P Katavolos

US Patent:

49325582, Jun 12, 1990

Filed:

May 8, 1989

Appl. No.:

7/348995

Inventors:

William Katavolos - New York NY

International Classification:

B65D 2524

US Classification:

220 5R

Abstract:

A swimming pool is constructed from a compressed body of the type formed from an open cup-shaped flexible membrane having a bottom and a side wall connected to the bottom; an upper portion of the side wall of the cup-shaped flexible membrane folded externally over a lower portion of the side wall to define an outer chamber between the upper and lower portions of the side wall, the outer chamber being open adjacent the bottom of the cup-shaped flexible membrane; a plurality of substantially rigid supports inserted in the outer chamber; and the folded side wall being compressed toward a center of the cup-shaped flexible membrane. First, a base having a bottom wall and a shallow retaining wall extending around the periphery of the bottom wall and in liquid sealing contact therewith, is positioned on a flat surface. A liquid is then supplied to the base and the compressed body is positioned on the base within the shallow retaining wall such that the outer chamber opens into the liquid. Finally, the cup-shaped flexible membrane is filled with a fluid, to cause the folded side wall of the flexible membrane to be expanded outwardly until restrained by the shallow retaining wall of the base and to cause the liquid to at least substantially fill the outer chamber to provide additional rigidity to the expanded side wall.