초록 ▼

The invention comprises a cap member having an annular wall and a top wall disposed within and connected to the annular wall. An arcuate pierce-plow member is disposed on an upper surface of the top wall at a position spaced from the annular wall. The pierce-plow member includes a first plow base me

The invention comprises a cap member having an annular wall and a top wall disposed within and connected to the annular wall. An arcuate pierce-plow member is disposed on an upper surface of the top wall at a position spaced from the annular wall. The pierce-plow member includes a first plow base member having a ramp portion and a substantially flat portion. The pierce-plow member further includes a piercing member disposed adjacent to the substantially flat portion of the plow base member. The piercing member includes a first portion disposed adjacent to the first plow base member and a second portion disposed at a position spaced from the first plow base member. A thickness of the second portion of the piercing member is greater than a thickness of the first portion of the piercing member.

대표청구항 ▼

[ What is claimed is:] [1.] A closure device for a membrane sealed container, said closure device comprising:an annular wall;a top wall disposed within and connected to said annular wall, said top wall having an upper surface; anda pierce-plow member disposed on said upper surface of said top wall a

[ What is claimed is:] [1.] A closure device for a membrane sealed container, said closure device comprising:an annular wall;a top wall disposed within and connected to said annular wall, said top wall having an upper surface; anda pierce-plow member disposed on said upper surface of said top wall at a position spaced from said annular wall, said pierce-plow member being arcuate, said pierce-plow member comprising:a first plow base member having a ramp portion and a substantially flat portion; anda piercing member disposed adjacent to said substantially flat portion of said plow base member, said piercing member having a first portion disposed adjacent to said first plow base member and a second portion disposed at a position spaced from said first plow base member, a thickness of said second portion of said piercing member being greater than a thickness of said first portion of said piercing member.