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AssigneeToppan Printing Co., Ltd.
InventorsSukenori Ito, Yoshiaki Take, Takahisa Hirayama
Estimating the term…
The present invention relates to a mandrel for use in manufacturing a container in which the mandrel includes a mandrel body in the shape of a cylinder, recessed portions located about the circumference of the mandrel body forming it into a polygon with inwardly depressed sides forming curved surfaces thereabout, and connecting portions separating the recessed portions and located substantially at the cylindrical outer surface of the mandrel, as well as a central channel in the mandrel and apertures located within the recessed portions and connecting them with the central channel so that a vacuum can be applied through the apertures to conform a container body placed on the outer surface of the mandrel to the shape of the mandrel.
A mandrel for use in manufacturing a container comprising a mandrel body having an outer surface substantially corresponding to the shape of a cylinder, a plurality of recessed portions located about the circumference of said mandrel body, said plurality of recessed portions forming said mandrel body into a shape having a cross-section substantially corresponding to a shape of a polygon whose sides are inwardly depressed from said substantially cylindrical outer surface to form curved surfaces, a plurality of connecting portions separating said plurality of recessed portions, said plurality of connecting portions being located substantially at said cylindrical outer surface of said mandrel, a central channel located within said mandrel, and a plurality of apertures located within said plurality of recessed portions and connecting said plurality of recessed portions with said central channel, whereby a vacuum can be applied through said plurality of apertures to conform a container body placed upon the outer surface of said mandrel to the shape of said mandrel.
Dependencies are inferred from the claim text.