Refrigeration – Refrigerant or coolant – storer or handler – Envelope type
Patent
1993-07-02
1994-05-24
Bennett, Henry A.
Refrigeration
Refrigerant or coolant, storer or handler
Envelope type
624572, 624574, 62529, 156145, 156285, 607114, F25D 308, A61F 700
Patent
active
053138090
ABSTRACT:
The present invention relates to a method of producing an insulated wrap intended for wrapping any desired item in order to maintain a given temperature, either hot or cold, for the desired item. The method basically consists of providing a die having a plurality of cavities each of which has evacuation means associated therewith, placing a flexible thermoformable film over the die and evacuating the cavities thereby to thermoform the film and create multiple pouches in the film material. The pouches are then filled with a eutectic chemical compound consisting of potassium chloride solution, and then overlying the pouch-filled film with an insulated sealing film. The insulated sealing film consists of a polyethylene film co-extruded to a layer of closed cell polyolefin foam. The sealing film acts as a thermo barrier. The wrap is completed by providing fastening means at opposed ends of the wrap in order to permit the wrap to be fastened about any desired item for temperature maintenance purposes. The invention further consists of providing a product manufactured according to the subject method.
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Isaacson Gary S.
Old Lansing A.
Bennett Henry A.
Fink David
Kilner Christopher
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