Patent attributes
A collapsible vessel reconfigurable between expanded and collapsed configurations. A sleeve combination has an inner sleeve rotatable relative to an outer sleeve. A liner is retained by the sleeve combination. The sleeves have opposed major walls divided by opposed fold line formations. Arrays of flexion apertures span a lateral range from adjacent to the respective fold line formation toward a central portion of the major wall, and an aperture density can vary generally based on distance from the fold line formation to promote a true-round confirmation of the expanded vessel. A lid structure with a disk and opposed retaining tabs can be selectively engaged with the liner, and a retaining strap can be pivotally coupled to the sleeve combination with a first orientation encircling the sleeve combination and a second, longitudinal orientation. A storage bag with first and second longitudinally-disposed stays can receive and further compress the vessel.
