초록 ▼

This invention relates to an endwall for a container having a panel portion surrounded by a substantially vertical wall portion which terminates into a narrow rim. The rim is connected to a sidwall of the container. The wall portion extends outward from the container and is adapted to be reformed in

This invention relates to an endwall for a container having a panel portion surrounded by a substantially vertical wall portion which terminates into a narrow rim. The rim is connected to a sidwall of the container. The wall portion extends outward from the container and is adapted to be reformed inwardly into the container in a controlled manner by an external mechanism to reduce the volume thereof after the container has been filled and sealed. The invention also relates to a method of packaging a product in a container having a body opened at one end and closed at an opposite end by an endwall as described above. The method includes the steps of filling the container with a product and sealing the open end, thermally treating the filled and sealed container, and reforming the endwall inwardly into the container. The sequence of steps can be rearranged.

대표청구항 ▼

A thin-walled metal container comprising a cylindrical body and an integral endwall closing one end of the cylindrical body, said endwall including a frustoconical wall portion with its smaller end projecting from the end of the container and closed by a central panel portion and the larger end of s

A thin-walled metal container comprising a cylindrical body and an integral endwall closing one end of the cylindrical body, said endwall including a frustoconical wall portion with its smaller end projecting from the end of the container and closed by a central panel portion and the larger end of said frustoconical wall portion connected to a relatively narrow rim outwardly surrounding said wall portion with said rim connected at its outer peripheral edge to the body of the container so that said central panel portion can be displaced toward said container by mechanical force exceeding the elastic limit of the metal in said container wall to reduce the length of said frustoconical wall portion in a controlled manner and thereby reduce the volume in a container on which said end wall is secured.