The invention described herein generally pertains to a system and method related to a hermetic seal assembly used with a bag to provide a hermetic seal for the bag that can be opened and closed while maintaining the hermetic seal for the bag and materials stored therein. The hermetic seal assembly can include a lid and a collar, wherein the collar can be releasably affixed to the bag or integrated into an opening of the bag.

The valve comprises a fluid inlet and/or outlet duct (8) comprising a flowrate regulator element (9) and a seating (10) for said fluid inlet and/or outlet duct (8), said seating (10) including a surface (10b) adapted to be attached to a portion of an internal bag (4) made of flexible material in the container (1), and is characterised in that it comprises a cover (11) to protect said seating (10) and comprising a hole for access to said fluid inlet and/or outlet duct (8); said cover (11) comprising means (13, 14) for securing a protective wrapping (5) enveloping the internal bag (4) on said seating (10). The container is characterised in that it includes at least one valve (3a, 3b) for the injection and/or extraction of fluid, and in that a portion of said internal bag (4) made of flexible material is attached to the seating (10) of the inlet duct (8) of said valve (3a, 3b) and that a portion of the protective wrapping (5) for said internal bag (4) is held against said seating (10) by the cover (11).

A stitchless highly oriented polypropylene fabric bulk bag of the type that can hold 500 to 5000 pounds (226.7 to 2268 kilograms) of bulk material includes a highly oriented polypropylene fabric top, body and bottom, with a heat fused joint providing an air tight connection between the top and body, and another air tight heat fused joint connecting the body and bottom. A fill spout and discharge tube may also be provided with an air tight heat fused joint connecting the fill spout to the top and another air tight heat fused joint connecting the discharge spout to the bottom. Heat sealing machinery include heat seal bar assemblies that can self-align during heat-sealing to apply even pressure to all areas being heat sealed. A heating element is of single piece construction and can include end coupler portions as part of the single piece construction. Carrier plates used in a heat-sealing assembly line guide parts placement, provide quality checks for parts placement, and tooling set-up for machinery.

A flexible large container for transporting and storing a filling product. The container has a usable space formed by top, bottom, and side walls that are constructed from a plurality of fabric sheets. The portions of the fabric sheets that enclose the usable space are welded together to provide a stitchless usable space. Upper portions of the sidewalls extend upward beyond the usable space to form a hem. Lift loops that enable the large container to be lifted by mechanical means are sewn onto the hem. Thus, the usable space remains stitchless, i.e., without stitch holes, yet the lift loops are stitched to the hem.

A bag material has a tubular shape and can be folded back at an intermediate position in a longitudinal direction. Crushed stones can be stored in a folded part of the back material. An opening on one side of the bag material can be moved to a position close to an opening on the other side of the bag material. A one-side closing rope that closes the opening on the one side of the bag material is provided near this opening. An other-side closing rope that closes the opening on the other side of the bag material is provided near this opening. The other of the one-side closing rope and the other-side closing ropes can be released with the opening closed by one closing rope.

Packaging assembly for the transport of coffee in the form of roasted beans, comprising: at least one impermeable bag, impermeable at least to oxygen and water vapour; said at least one impermeable bag being flexible and sealable in a watertight manner to prevent the introduction of fluids or gases; at least one unidirectional valve sealingly applied to said at least one impermeable bag which only allows gas to escape from the impermeable bag preventing the entry of gas into the impermeable bag, wherein said at least one unidirectional valve makes it possible to achieve an over-pressure inside the impermeable bag variable from 3 to 60 mbar.

There is disclosed a bag for the transport and storage of bulk goods or liquids formed by the assembly of several double-thickness pieces of fabric, including first and second pieces of fabric, each having opposite first and second sides extending between first and second folded-in flattened edges. Each piece of fabric includes at least one gusset defined by a first oblique section extending between the first folded-in flattened edge and a first gusset end positioned on the second side of the piece of fabric and a second gusset end positioned on the first side of the piece of fabric. The first and second pieces of fabric are assembled such that the second side of the second piece of fabric is in contact with or close to the first side of the first piece of fabric such that the first and second gusset ends of the first and second pieces of fabric are substantially aligned. The first and second pieces of fabric are assembled by means of seams formed around or near the first and second gusset ends of the first and second pieces of fabric.

A device for storing and transporting a bulk material, in particular a pharmaceutical bulk material, comprising a base container and at least one connection body detachably connectable with the base container, wherein the base container and the connection body in the connected state form a sealing section with which the base container and the connection body are connectable or are connected gas-tight with one another. A method for filling such device with this bulk material and for emptying a device filled with this bulk material as well as the use of such device for storing and transporting a pharmaceutical bulk material.

A collection assembly (10, 10a) for flowable materials includes a central, flexible bag (12, 12a) with a collection skirt (14, 14a) secured to the bag (12, 12a) and extending outwardly from the open top (20, 20a) of the bag (12, 12a). In use, the assembly (10, 10a) is placed at a collection site with the bag (12, 12a) in a collapsed condition and the skirt (14, 14a) is deployed about the bag (12, 12a). Material (36) is then placed on the assembly (10, 10a) over the open top (20, 20a) and, as necessary, the skirt (14, 14a). The skirt is then elevated using marginal gathering apparatus (16, 16a), thereby causing the material (36) to flow into the bag (12, 12a). The skirt (14, 14a) may then be gathered and closed, forming a duffel closure for the assembly (10, 10a).

Reusable, flexible, lightweight, low cost flexible intermediate bulk containers (FIBCs) for the delivery of granular proppant material for fracing that will allow the transport of higher weights of proppant, such as sand, per truck load. The invention includes a container made of a high strength, flexible material with a top opening for loading and deploying the proppant. The container can be lifted and deployed with a fork truck or crane. Alternatively, proprietary deployment systems, such as a conveyor system, can be used to quickly and efficiently deploy the proppant from the container at a desired site.