초록 ▼

A method for manufacturing a container for filling with juice or the like at a high temperature includes applying a container body to a mandrel having an outer surface corresponding to the shape of a cylinder and a plurality of recessed portions located about the circumference of the mandrel. The re

A method for manufacturing a container for filling with juice or the like at a high temperature includes applying a container body to a mandrel having an outer surface corresponding to the shape of a cylinder and a plurality of recessed portions located about the circumference of the mandrel. The recessed portions are inwardly recessed from the substantially cylindrical outer surface and are separated by a plurality of connecting portions corresponding substantially to the cylindrical outer surface. The container body is subjected to vacuum attraction through a plurality of apertures provided in the mandrel whereby the container body is drawn into the plurality of recessed portions to conform the shape of the container body to the shape of the mandrel. The container is thereafter disengaged from the mandrel by feeding compressed air through the plurality of apertures of the mandrel.

대표청구항 ▼

A method for manufacturing a paper container so as to provide for uniform deformation of said paper container upon reduction of the pressure therewithin, said method comprising applying a container body comprising paper to the outer surface of a mandrel, said outer surface substantially correspondin

A method for manufacturing a paper container so as to provide for uniform deformation of said paper container upon reduction of the pressure therewithin, said method comprising applying a container body comprising paper to the outer surface of a mandrel, said outer surface substantially corresponding to the shape of a cylinder and including a plurality of recessed portions located about the circumference of said mandrel, said plurality of recessed portions being inwardly recessed from said substantially cylindrical outer surface and being separated by a plurality of connecting portions corresponding to said substantially cylindrical outer surface, including a plurality of apertures connecting said plurality of recessed portions with a central channel within said mandrel, said method including applying a vacuum through said plurality of apertures to draw said container body into said plurality of recessed portions and thereby produce creases in said container body which temporarily conform the shape of said container body to the shape of said recessed portions of said mandrel, and applying pressure through said plurality of apertures to remove said container body from said mandrel, whereby said container body, including said creases, returns to a substantially cylindrical configuration, and upon the creation of a negative pressure within said container body said container body can uniformly deform to correspond with the shape provided by said creases.