Portable cold storage box
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United States of America Patent
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Issued Date -
Oct 17, 2019
app pub date -
Jul 30, 2018
filing date -
Apr 13, 2018
priority date (Note) -
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Abstract
The present disclosure relates to a portable cold storage box having at least six identical square cold storage pieces capable of being put together to form a cuboid or cubic box. A through-hole is provided in the middle of each square cold storage piece. The periphery of each through-hole has one surface formed with a recess and an opposite surface formed with a step-shaped protrusion which can be snapped in a corresponding recess. Engageable tooth-shaped teeth are formed on opposite sides of the square cold storage pieces. A refrigerant is stored inside the square cold storage pieces in a sealed manner. The portable cold storage box of the present disclosure is advantageous in that it does not require a power source. It is easy to assemble, and after disassembling, the disassembled pieces can be quickly stacked up without being scattered around.
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