Closure assembly for a container

In combination:

• a container having a container end panel that is formed with an inner axial wall, an outer axial wall and a connecting upper wall, said inner axial wall defining an opening;
• a closure assembly including an internally-threaded annular flange that is installed into said container end panel, a closure plug having a concave gasket-receiving portion, and an externally-threaded portion for threaded assembly into said annular flange and an annular gasket positioned around and in contact with said gasket-receiving portion and positioned between said gasket-receiving portion and said inner axial wall;
• and
• wherein said annular flange includes an upper wall portion positioned between said inner axial wall and said outer axial wall and wherein said annular gasket is in contact with said gasket-receiving portion and said inner axial wall and is radially compressed between said gasket-receiving portion and said inner axial wall, and wherein said annular flange defines a plurality of drain holes, said annular flange including an upper flange lip that is adjacent an axial end of an annular sidewall, said annular sidewall having two sections that are axially adjacent with one section being radially offset from the other section, said upper flange lip having an outer periphery that is radially outwardly of said annular sidewall.

In combination:

• a container having a container end panel that is formed with an inner axial wall, an outer axial wall and a connecting upper wall, said inner axial wall defining an opening;
• an internally-threaded annular flange installed into said container end panel, said internally-threaded annular flange including a threaded plug opening and a frustoconical inner surface located axially above and radially outwardly of said threaded plug opening, said frustoconical inner surface having an angle of incline of approximately between 10 degrees and 15 degrees;
• a closure plug having a radial lip, an externally-threaded portion for threaded assembly into said annular flange and a concave gasket-receiving portion positioned between said externally-threaded portion and said radial lip;
• an annular gasket positioned around and in contact with said gasket-receiving portion;
• and
• wherein said closure plug and said annular flange are constructed and arranged such that a desired tightening torque for said closure plug into said annular flange is achieved when said radial lip contacts said connecting upper wall.

A closure assembly for a container, said container including a container end panel defining a closure assembly-receiving opening, said closure assembly comprising:

• an annular flange constructed and arranged with a threaded plug opening and an inner surface located axially above and radially outwardly of said threaded plug opening, said annular flange further including an annular sidewall, said annular flange including an upper flange lip that is adjacent an axial end of said annular sidewall, said annular sidewall having two sections that are axially adjacent with one section being radially offset from the other section, said upper flange lip having an outer periphery that is radially outwardly of said annular sidewall;
• a closure plug having a threaded outer portion and being constructed and arranged to be received by said threaded plug opening, said threaded closure plug further including a radial lip and a gasket-receiving portion that is axially between said threaded outer portion and said radial lip;
• and
• an annular gasket positioned around and in contact against said gasket-receiving portion, said annular gasket being constructed and arranged to be formed into a sealing configuration against a portion of said container end panel that is overlaying said inner surface when said closure plug is threaded into said annular flange.

In combination:

• a container having a container end panel that is formed with an inner axial wall, and outer axial wall and a connecting upper wall extending between said inner axial wall and said outer axial wall, said inner axial wall defining an opening;
• a closure assembly including an internally-threaded annular flange that is installed into said container end panel, a closure plug having a concave gasket-receiving portion, and an externally-threaded portion for threaded assembly into said annular flange and an annular gasket positioned around and in contact with said gasket-receiving portion and positioned between said gasket-receiving portion and said inner axial wall;
• and
• wherein said annular flange includes an upper wall portion positioned between said inner axial wall and said outer axial wall and wherein said annular gasket is in contact with said gasket-receiving portion and said inner axial wall and is radially compressed between said gasket-receiving portion and said inner axial wall, said annular flange including an upper flange lip that is adjacent an axial end of an annular sidewall, said annular sidewall having two section that are axially adjacent with one section being radially offset from the other section, said upper flange lip having an outer periphery that is radially outwardly of said annular sidewall.