Patent ID: 6886189
Filing Date: 2005-05-03
Classification: E04H

Abstract:
1. A playing pool, comprising: an upper ring, a middle ring and a bottom sheet made from a flexible and water-proof plastic sheet, the upper ring being rolled to form a hollow body, the middle ring and the bottom sheet being made from a plastic sheet, the middle ring having an upper side and a lower side to connect to the upper ring and the bottom sheet by thermal fusion; wherein the middle ring is formed from an integrated and elongated plastic sheet with the upper side and the lower side mating different perimeters of the upper ring and the bottom sheet, and has a plurality of wedge type slit notches directing vertically from the upper side towards the lower side to form trapezoids that have respectively a narrower upper side and a wider lower side and two slant lateral sides, the slant lateral sides of the neighboring trapezoids being connected by thermal fusion to form the middle ring.