Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Coacting shaping surfaces
Reexamination Certificate
2004-02-19
2009-02-10
Hug, Eric (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Coacting shaping surfaces
C425S394000, C264S299000
Reexamination Certificate
active
07488169
ABSTRACT:
A three-dimensional structure, and a method and device for producing the structure, where the structure has pressure resistant characteristics despite its voluminous and elastic nature and has higher resistance to surface wear and mechanical dimensional stability than a foamed polyethylene sheet. The three-dimensional structure is characterized in that a resin sheet has needle-like projections on its both faces, each projection has a height (H) of 3 mm or more, the height (H) and a width (W) of the projection at the height of H/2 has a relationship of H≧2.5 W, the projection has a hole in its tip, and the projections are joined to a sheet-like object at their tops. The method of producing the three-dimensional structure is characterized in that a large number of needle-like dies are integrated with a base plate, and a pair of the base plates are arranged so as to be opposed to each other, and a resin sheet is deformed when the pair of the base plates move parallel to each other so as to intrude into the resin sheet. Further, a method of continuously producing the three-dimensional structure is provided.
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Kawakami Hajime
Keduka Seijyu
Huda Saeed M
Hug Eric
Jordan And Hamburg LLP
Kawakami Sangyo Co., Ltd.
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