COMPRESSED THREE-DIMENSIONAL NETTED STRUCTURE, COMPRESSED AND RESTORED THREE-DIMENSIONAL NETTED STRUCTURE, COMPRESSION METHOD OF THREE-DIMENSIONAL NETTED STRUCTURE AND COMPRESSION AND RESTRATION METHOD OF THREE-DIMENSIONAL NETTED STRUCTURE
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United States of America Patent
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Issued Date -
Oct 8, 2015
app pub date -
Jul 12, 2013
filing date -
Jul 13, 2012
priority date (Note) -
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Abstract
Framework-like structures suffer from a problem in that transport costs are increased because bulk density is low. A mattress (1) composed of a framework-like structure is placed in a bag (2) for compression, a zipper of the bag (2) for compression is closed, a suction port of a suction device such as a vacuum cleaner is brought into contact with a non-return valve and air is suctioned out to thereby place and seal the mattress, which is in a compressed state, in a vacuum state and compress the thickness of the mattress (1). An airtight state at 65° C. is subsequently maintained inside a container during transport. After transport, the zipper of the bag (2) for compression is opened, and the mattress (1) having been extracted from the bag (2) for compression is placed in a hot-air tank and restored in an atmosphere of 85° C.
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