초록 ▼

A collapsible receptacle for handling flowable materials in semi-bulk quantities comprises a generally cylindrical container supported by a sling. The container features top loading and bottom discharge. The container can be constructed of a strong weave material. Preferably, the container is constr

A collapsible receptacle for handling flowable materials in semi-bulk quantities comprises a generally cylindrical container supported by a sling. The container features top loading and bottom discharge. The container can be constructed of a strong weave material. Preferably, the container is constructed of a unique laminate material formed of an inner liner of polybutylene film noncontinuously adhered to an outer layer of woven polypropylene. The sling is constructed of straps of polyester webbing, which are sewn to the container so that support stresses are distributed between the sling and the container. In one embodiment, the sling includes a ring for supporting the bottom of the container and lift straps attached to the ring. The ring surrounds a unique discharge spout in the container bottom. In another embodiment, the lower ends of the lift straps include guide loops for a draw rope. The draw rope surrounds a wire tie which functions to gather and close the bottom of the container. Release of the wire tie and draw rope permits discharge of the contents across the entire bottom of the container. In another embodiment, the receptacle includes a top panel, side panels and side seams between the side panels with the lift straps encompassing at least a portion of the side seams and attached to a top stitch to the top and side panels.

대표청구항 ▼

In a collapsible receptacle of the type having a plurality of longitudinally extending lift straps secured to a container in circumferentially spaced relationship, the container including an upstanding side panel with a separate top panel having an opening and peripherally secured across the upper e

In a collapsible receptacle of the type having a plurality of longitudinally extending lift straps secured to a container in circumferentially spaced relationship, the container including an upstanding side panel with a separate top panel having an opening and peripherally secured across the upper end of the side panel and having a closed bottom, the improvement which comprises: each of said lift straps being secured to the top and side panels at the upper end of said container; and each of said lift straps being secured along the lower portion thereof to the side panel up to a point located a predetermined distance below the upper end of the container such that an unsecured portion of each strap is provided adjacent to the point of connection of said strap to said top panel so that said straps are operable to distribute lifting forces along said side panel, and to transmit oblique forces applied through said upper portions of said straps in a direction oblique to said side panel into said top panel to prevent said side straps from being torn away from the receptacle by the oblique forces.