ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,561, issued on April 14.
"Fluid storage tank including a flexible bladder supported on a collapsible rigid frame" was invented by Marlea Sleeman (Edmonton, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid storage tank has a base structure, perimeter columns extending upward from the base structure and a flexible bladder contained within the perimeter columns to define a boundary of the tank. The base structure is arranged to be supported on a supporting foundation to span a bottom of the tank. The upright columns are releasably coupled to the base structure and extend upward at circumferentially spaced apart positions about a perimeter...