Expandable pool system

Abstract

A portable swimming pool comprising a base having a perimeter; and a side wall erected upright. The side wall includes a top and a bottom, such that the bottom of the side wall is coupled to the perimeter of the base. The side wall incorporates an expansion system that enables the side wall to increase and decrease to different heights, and thus increasing/decreasing the depth/volume of the pool. The expansion system can include a zipper means that extends about the circumference or perimeter of the swimming pool.

1 . An expandable pool, comprising:
 a base;   a side wall in communication with a perimeter of the base; and   an expansion system incorporated in the side wall, wherein the expansion system lengthens and shortens a height of the side wall.   
     
     
         2 . The pool of  claim 1 , the expansion system comprising a main compartment with one or more expansion joints adapted to lengthen and shorten the height of the side wall. 
     
     
         3 . The pool of  claim 2 , wherein the one or more expansion joints comprise a zipper track having a first end and a second end, wherein the first end underlies the second end of the zipper track in an overlapping fashion. 
     
     
         4 . The pool of  claim 3 , further comprising a slide fastener that slides along the zipper track from the first end to the second end to open and close the expansion system. 
     
     
         5 . The pool of  claim 1 , wherein the side wall comprises an inner wall and an outer wall. 
     
     
         6 . The pool of  claim 1 , wherein the inner wall and the outer wall are made of different materials. 
     
     
         7 . The pool of  claim 1 , further comprising one or more port holes defined between the inner wall and outer wall of the side wall. 
     
     
         8 . The pool of  claim 1 , further comprising a floatation device attached to a top portion of the side wall, wherein the floatation device provides rigidity to the side wall. 
     
     
         9 . The pool of  claim 1 , wherein the side wall is inflatable. 
     
     
         10 . The pool of  claim 9 , wherein the side wall comprises a plurality of valves adapted to receive a gaseous media which inflates the side wall. 
     
     
         11 . The pool of  claim 1 , wherein the side wall is collapsible. 
     
     
         12 . The pool of  claim 1 , further comprising structural supports coupled to the side wall to provide rigidity to the side wall. 
     
     
         13 . The pool of  claim 1 , further comprising a ladder coupled to the side wall to enable one to enter and exit the pool. 
     
     
         14 . The pool of  claim 1 , further comprising a liquid drainage assembly integrated into the side wall. 
     
     
         15 . The pool of  claim 1 , further comprising a light source to illuminate the pool. 
     
     
         16 . An expandable pool, comprising:
 a base;   an inflatable side wall in communication with a perimeter of the base, the side wall comprising an inner wall and an outer wall;   a flexible expansion system incorporated between the inner wall and outer wall of the side wall, the expansion system comprising a zipper track having a first end and a second end and a slide fastener;
 wherein the first end of the zipper track underlies the second end of the zipper track in an overlapping fashion, and the slide fastener engages the zipper track to open and close the expansion system; 
 wherein the expansion system lengthens and shortens a height of the side wall; 
   a flotation device attached to a top portion of the side wall, wherein the floatation device rises with a level of liquid in the pool; and   a pump device adapted to circulate and clean the liquid in the pool.   
     
     
         17 . The pool of  claim 16 , further comprising a fountain device that propels at least some of the liquid from the pool into a fountain-like configuration. 
     
     
         18 . The pool of  claim 17 , wherein the pump device is in communication with the fountain device and controls the elevation of the fountain-like configuration. 
     
     
         19 . The pool of  claim 16 , wherein the side wall comprises a plurality of valves adapted to receive a gaseous media which inflates the side wall.