Collapsible container for bulk transport and handling of heat meltable materials
OwnerSol Schlesingerinventor
Life of this patent
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Abstract
A collapsible container for facilitating the transportation and handling of heat meltable materials, such as, e.g., caprolactam, hexamethylene diamine (HMDA), dodecanedioic acid (DDDA), or any monomer and salt combinations used in the production and polymerization of polyamides. An expandable/collapsible container or bag is employed for holding and dispensing the bulk material. The bulk material is transported in a solid form, and converted to liquid form for removal from the container. The container includes heat tubing circulating a heat carrying medium or a heating element for heating and converting the bulk material to liquid form. The liquified material is then pumped from the container into a suitable storage facility.
Claims23
A collapsible container for transporting and handling a heat meltable material comprising:
- a flexible layer for holding the material, said flexible layer being inert with respect to the material and movable between a first and second position;
- and
- a heat producing member for converting the material into a liquid form, said heat producing member expanding and compressing between said first and secbnd position.
A method of preparing and filling a collapsible container for transporting and handling a heat meltable material, said method comprising:
- coupling a material supply to a material inlet port of the collapsible container, the material supply comprising the heat meltable material in liquid form;
- varying the collapsible container from a compressed position to an expanded position by introducing the material into the collapsible container;
- removing the material supply from the material inlet port when the collapsible container is in the expanded position;
- and
- coupling a sealing member to the inlet port of the collapsible container for at least one of storing and transporting the container,
- wherein the heat meltable material solidifies in the collapsible container.
A method for removing a heat meltable material from a collapsible container, said method comprising:
- coupling a heat producing supply to an inlet port of the collapsible container;
- coupling an output port of the collapsible container to the heat producing supply;
- liquefying the heat meltable material within the collapsible container by circulating the heat producing supply through a heat producing member;
- removing the heat producing supply from the collapsible container after the heat meltable material is liquified;
- coupling a material removing means for removing the liquified heat meltable material from the collapsible container;
- and
- removing the contents of the collapsible container to place the collapsible container in a compressed position.
Dependencies are inferred from the claim text.