US 5,154,309 AGranted

Insulating blanket for shipping container having scored mineral wool

AssigneeRock-Tenn Company

InventorsHenry Wischusen, III, Larry Clark

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Abstract

Insulation material is configured to provide improved insulating properties in a shipping container. A sheet of insulation material is placed aong the bottom of a container under the contents of the container. An insulating blanket constructed of plastic sheets sealed around their periphery to form a pouch for containing scored paperboard and scored mineral wool is configured to have an inverted U-shape and is placed over a bottom half of the container. A top half of the container is then placed over the bottom half such that the legs of the inverted U-shaped material are between the overlapping side of top and bottom of the container and the middle portion of the U-shaped material is between the top of the container and the contents within the container. A method of scoring mineral wool positioned between plastic sheets is also provided.

Claims22

Dependent claims

An insulated container, comprising:

(A) a bottom tray, comprising:
(i) a bottom panel having an upwardly facing inner surface;
and
(ii) at least two bottom side panels extending upwardly from said bottom panel, each bottom side panel having an outwardly facing surface;
(B) a top cover, comprising:
(i) a top panel having a downwardly facing inner surface, and
(ii) at least two top side panels extending downwardly from said top panel, each top side panel having an inwardly facing surface,
(iii) said top cover being positioned over said bottom tray such that each inwardly facing surface of said top cover overlaps and faces one of said outwardly facing surfaces of said bottom tray, the overlap of said inwardly and said outwardly facing surfaces defining a pair of channels;
and
(C) an insulating barrier positioned between said channels and below said inner surface of said top panel, comprising two end sections positioned within said channels, and a middle section positioned between said end sections and between said top panel and the interior of said bottom tray, said barrier comprising,
(i) a pair of liner sheets secured to one another around their periphery, and
(ii) an insulator positioned within said liner sheets, said insulator having scores formed thereon positioned to define said end sections and said middle section.

9 more elements

Dependencies are inferred from the claim text.