초록 ▼

A vessel for receiving fluid includes a flexible part having a closed end and an opening at its opposite end, and a rigid protective cover, the edges of the opening in the flexible part being attached to the rigid cover in a manner such that the inside of the flexible part and the inside of the cove

A vessel for receiving fluid includes a flexible part having a closed end and an opening at its opposite end, and a rigid protective cover, the edges of the opening in the flexible part being attached to the rigid cover in a manner such that the inside of the flexible part and the inside of the cover define a closed interior space, the flexible part being capable of being drawn up against the inside of the protective cover upon evacuation of the interior space whereby the flexible part is received within the protective cover. A connection member is provided on the outside of the protective cover, the connection member having a bore therethrough and a perforatable, resilient, self-sealing membrane extending across the bore, through which membrane a puncturing member may be inserted for removing material from or adding material to the interior space. A protection member is supported by the protective cover within the interior space at the location of the connection member for preventing a puncturing member inserted through the connection member from contacting the flexible part, the protection member having at least one opening therein in communication with the interior space.

대표청구항 ▼

In combination, a vessel, and a material stored therein in concentrated form which is to be dissolved or diluted by a solvent prior to use, said vessel comprising: a flexible part having a closed end and an opposite open end, the open end having a peripheral edge, said flexible part defining an inte

In combination, a vessel, and a material stored therein in concentrated form which is to be dissolved or diluted by a solvent prior to use, said vessel comprising: a flexible part having a closed end and an opposite open end, the open end having a peripheral edge, said flexible part defining an interior surface and an exterior surface; a rigid cup-shaped part having downwardly extending side walls, and an open bottom end, and defining interior and exterior surfaces, the peripheral edge of the opening in the flexible part being tightly attached to the rigid cup-shaped part such that said interior surface of the flexible part and said interior surface of the rigid cup-shaped part define a closed interior space; an upwardly-extending connection member on the rigid cup-shaped part, the connection member having an opening therethrough and a perforable, resilient, self-sealing membrane extending across said opening, through which membrane said interior space is accessible by a puncturing member for adding solvent to said material stored in said interior space or removing dissolved or diluted material from said interior space; and a protection member supported by said rigid cup-shaped part within said interior space adjacent said opening of the connection member, for receiving such puncturing member inserted through said opening and preventing such puncturing member from contacting the flexible part, the protection member having at least one opening therein in communication with said interior space; said concentrated material only taking up a small part of said interior space, said flexible part being configured and dimensioned such that when said interior space is at least partly evacuated, the flexible part is, because of vacuum pressure, drawn up against said interior surface of the rigid cup-shaped part and totally contained therein, and after adding solvent into said interior space for dissolving or diluting said concentrated material, said flexible part may expand towards said open bottom end of said rigid cup-shaped part.