Method and apparatus for storing and distributing materials

• US 5,235,819 A
• Filed: 07/22/1991
• Issued: 08/17/1993
• Est. Priority Date: 03/02/1988
• Status: Expired due to Fees

• Current Assignee: Pallet-Cooler Kb
• Original Assignee: Pallet-Cooler Kb
• Inventors: Bruce, Hans
• Primary Examiner(s): Sollecito, John M.
• Application Number:
  US07/733,323
• Time in Patent Office: 757 Days
• Field of Search: 62/463, 62/438, 62/372, 62/530, 62/457.2, 220/426, 220/420, 220/466, 220/467, 220/901
• US Class Current: 62/60
• CPC Class Codes: F25D 2303/0831 the liquid is disposed in the space between the walls of the container
• CPC Class Codes: F25D 2303/085 Compositions of cold storage materials
• CPC Class Codes: F25D 2331/804 Boxes
• CPC Class Codes: F25D 3/06 Movable containers

Abstract

The present invention relates to a method and apparatus for maintaining products at an intended temperature during transport and storage at an ambient temperature deviating from the intended temperature. The invention features a container which holds the products and whose walls render heat transfer difficult. The container includes a main container body with a bottom and a side section that together define one or more integrated compartments suitable for storing a solidifiable substance. The container includes a lid which also has an integrated compartment for storing a solidifiable substance. When the lid is positioned on the main container body there is provided a solidifiable substance confinement enclosing the material storage space in the container from all sides. By subjecting the container and the solidifiable substance in its wall compartments (4, 4'"'"') to cold, so as to solidify the substance, subsequently inserting the products into the container after it has been moved to a room having a temperature adapted to the products, and positioning the lid over the container main body, an uninterrupted layer of solidifiable substance is provided around the entire material storage space.

Claims

1. A container, comprising:

a main container body having a bottom section and side section with the side section extending off from the bottom section so as to define a material storing space with an open top, said side section including an inner wall and an outer wall and an upper edge and said bottom section including an inner and outer wall, said inner wall and outer walls and upper edge together defining at least one permanently integrated, fluid-tight compartment for holding a solidifiable substance which absorbs latent heat when transforming from a solid to a liquid;

a lid dimensioned and arranged so as to cover the open top of said main container body and close-off the material storing space when positioned on said main container body, said lid including a permanently integrated, fluid-tight compartment for receiving a solidifiable substance, and said lid compartment and said at least one compartment defined by said inner and outer walls and upper edge being dimensioned and arranged so as to, in combination, encompass the entire material holding space and wherein said outer wall of said side section is thicker than said inner wall and an interior surface of said outer wall of said side section has formed therein a plurality of recesses so as to form a plurality of individual compartments for said solidifiable substance, and said inner wall covers said plurality of recesses so as to seal the solidifiable substance within each of said individual compartments.

2. A container as recited in claim 1, wherein the recesses formed in said outer wall are hemispherical recesses which are arranged in vertical rows with recesses in one row being offset with recesses in an adjacent row.

3. A container as recited in claim 1, further comprising a metallic sheet joined to an interior side of said inner wall.

4. A container, comprising:

a main container body having a bottom section and a side section with the side section extending off from the bottom section so as to define a material storing space with an open top, said side section including an inner wall and an outer wall and an upper edge, said bottom section including an inner and outer wall, and said inner wall and outer walls together defining at least one permanently integrated, fluid-tight compartment;

a lid dimensioned and arranged so as to cover the open top of said main container body and close-off the material storing space when positioned on said main container body, said lid including a permanently integrated, fluid-tight compartment, and said lid compartment and said at least one compartment defined by said inner and outer walls and upper edge being dimensioned and arranged so as to, in combination, encompass the entire material holding space, and wherein said lid has a mid-body section and a flange section extending out form said mid-body section, said lid compartment extending within said mid-body section and said flange section such that a portion of the compartment within said mid-body section has a vertical thickness greater than a portion of the compartment in said flange section, and said mid-body section extends below the upper edge of said side section and into frictional contact with the inner wall of said side section; and

a solidifiable substance contained within said fluid tight lid compartment and within said at least one fluid-tight compartment formed by said inner and outer walls and upper edge and wherein said solidifiable substance is permanently sealed within said lid compartment and within said at least one compartment formed by said inner and outer walls and upper edge.

5. A container as recited in claim 4, wherein said solidifiable substance is a paraffin hydrocarbon.

6. A container as recited in claim 4, wherein said solidifiable substance is tetradecane.

7. A container as recited in claim 4, wherein said solidifiable substance is pentadecane.

8. A container as recited in claim 4, wherein said solidifiable substance is hexadecane.

9. A container as recited in claim 4, wherein said solidifiable substance is hydrocarbon alcohol.

10. A container as recited in claim 4 wherein the portion of the compartment in said mid-body section is two to four times greater in vertical depth than the portion of the compartment in said flange section.

11. A container as recited in claim 10 wherein the portion of said compartment in said mid-body section of the lid has a thickness about twice as great as the portion of said compartment in said flange section.

12. A method for maintaining during shipping and storing a material at essentially a predetermined temperature;

comprising;

positioning a main container body, having a bottom section, a side section and an upper sedge which together define a material storage space and which together include a plurality of fluid tight, permanently integrated compartments with a solidifiable substance sealed within the plurality of individual compartments by an inner wall positioned over a plurality of recesses formed in an interior surface of a thicker outer wall of said main body section, in an environment which causes the solidifiable substance to solidify;

positioning a lid, which has a permanently integrated, fluid-tight compartment, formed therein and which contains a solidifiable substance in an environment which causes the solidifiable substance in said lid compartment to solidify;

placing the material to be maintained essentially at the predetermined temperature within the material storage space in said main container body;

positioning said lid on said main body container so as to close-off the material storage space such that the compartment in said lid containing the solidified solidifiable substance and the individual compartments in said main body containing the solidified solidifiable substance together completely encompass the entire material storage space within which the material is contained, and wherein said lid includes a mid-body section and a peripheral flange section extending off said mid-body section with the compartment formed in said lid extending into both said mid-body section and said peripheral flange section, and wherein at least one compartment formed in said main container body extends up to said upper edge, and wherein the step of positioning said lid on said main body includes positioning said mid-body section partially into the material storage space and supporting said peripheral flange section with solidified solidifiable substance therein on said upper edge, and wherein positioning said lid further includes frictionally contacting the mid-body section with an inner wall of said side section below said upper edge.

13. A method as recited in claim 12, wherein said lid includes a mid-body section and a peripheral flange section extending off said mid-body section with the compartment formed in said lid extending into both said mid-body section and said peripheral flange section, and wherein said at least one compartment formed in said main container body extends up to said upper edge, and wherein the step of positioning said lid on said main body includes positioning said mid-body section partially into the material storage space and supporting said peripheral flange section on said upper edge.

14. A method as recited in claim 12, further comprising the step of placing said lid and said main body compartment in an environment having a temperature essentially the same as the predetermined temperature prior to positioning the lid in place on said main container body.

15. A method as recited in claim 12, wherein, following a period of shipping and storing, sealing plugs are removed from both said lid and said main container body and the solidifiable substance, which is in a liquid state, is removed from the lid compartment and said at least one main body container compartment.