20100320203 | Collapsible Water Tank - A liquid storage device includes a rigid upper top, a rigid lower base and compliant collapsible/expandable bladder in which the bladder fits intermediate the top and base and is movable between a collapsed form with the top and the base nesting so as to form a transportable package for the device and an expanded form with the top and base drawn apart so as to provide a reservoir and storage for liquid in which the top, base and bladder are held in juxtaposition by an open frame interposed between the top and base with the bladder being confined by the frame and base and in which the open frame includes a lower ring adapted for fitting within an open channel formed in the base, an upper ring adapted for mounting the top of the bladder and a plurality of vertical struts interposed between the lower and upper rings. | 12-23-2010 |