초록 ▼

A flexible and collapsible storage tank (10) for holding large volumes of material is fabricated in a rectangular shape from long lengths of a rubberized square-woven fabric. The lengths of fabric are oriented with overlapping adjacent edges to form inner (122) and outer (124) envelope structures wh

A flexible and collapsible storage tank (10) for holding large volumes of material is fabricated in a rectangular shape from long lengths of a rubberized square-woven fabric. The lengths of fabric are oriented with overlapping adjacent edges to form inner (122) and outer (124) envelope structures which are integrally vulcanized into a homogeneous tank body (20). The inner envelope (122) is formed by longitudinally oriented fabric plies (22) having overlapping adjacent edges (22a) while the outer envelope (124) is formed by edge plies of fabric (26) folded about the peripheral edges of the inner envelope (122) and orthogonally oriented fabric plies (24) positioned on either side of the inner envelope (122). The tank (10) includes an air vent valve (40) mounted in its top and a closure (30) which clamps and seals a corner exposure (20a) of the tank body (20) and provides access and communication into the tank for filling and emptying.

대표청구항 ▼

A flexible and collapsible storage tank for holding large volumes of material comprising in combination: a substantially homogeneous rectangular tank body comprised of integrally vulcanized inner and outer envelope structures of rubberized square-woven fabric, the inner envelope structure formed by

A flexible and collapsible storage tank for holding large volumes of material comprising in combination: a substantially homogeneous rectangular tank body comprised of integrally vulcanized inner and outer envelope structures of rubberized square-woven fabric, the inner envelope structure formed by a plurality of long lengths of fabric having overlapping adjacent edges and oriented longitudinally while the outer envelope structure is formed by a plurality of edge plies of fabric folded about the peripheral edges of inner envelope structure and a plurality of lengths of fabric having overlapping adjacent edges and oriented orthogonally on either side of the inner envelope structure; a vent valve mounted in the top of the tank body to communicate air into and out of the interior thereof when filling and emptying the tank body; and closure means mounted at one end and across a corner exposure of the tank body to seal the corner exposure and provide a connection for communication into the tank body.