Beer keg

Claim 2

A container for beer comprising a keg having integrally joined top, bottom and side walls defining a keg chamber, said walls being made of unitary formed plastic, said side wall having a portion defining a plug mounting member opening and said top wall having a portion extending toward the bottom defining a tapper plug mounting member opening, a filler plug mounting member mounted in the side wall opening by said side wall portion, and a tapper plug mounting member mounted in said top wall opening in adhered relationship to the top wall portion, the top wall opening including a recess opening outwardly, circumferentially spaced grooves radially inwardly of said recess and a reduced diameter bore portion opening to said grooves and recess defined by said top wall portion, and the tapper plug mounting member including a radially enlarged diameter flange portion having circumferentially spaced cutouts providing radial flange portions extending into said grooves, an annular flange portion joined to said enlarged diametric flange portion and in sealing fitting relationship to the wall portion defining said reduced diameter portion, said enlarged diametric flange portion being joined to the annular flange portion, and a top flange portion integrally joined to the annular flange portion to extend thereabove, substantially spaced from the wall defining said recess and extending to a maximum elevation lower than the maximum elevation of the top wall.

Claim 3

A container for beer comprising a keg having integrally joined top, bottom and side walls defining a keg chamber, said walls being made of unitary formed plastic, said side wall having a portion defining a plug mounting member opening and said top wall having a portion defining a tapper plug mounting member opening, a filler plug mounting member mounted in the side wall opening by said side wall portion, and a tapper plug mounting member mounted in said top wall opening by said top wall portion in adhered relationship to the top wall portion, the top wall and adjacent part of the side wall having a first radius of curvature and the bottom wall and adjacent part of the side wall being curved about a second radius of curvature, the first radius of curvature emanating from a point spaced from and vertically above the point from which the second radius of curvature emanates, the spacing of said points being less than the length of each of the first radius and the second radius.

Claim 4

A container for beer comprising a keg having integrally joined top, bottom and side walls defining a keg chamber, said walls being made of unitary formed plastic, said side wall having a portion defining a plug mounting member opening and said top wall having a portion defining a tapper plug mounting member opening, a filler plug mounting member mounted in the side wall opening by said side wall portion, and a tapper plug mounting member mounted in said top wall opening by said top wall portion in adhered relationship to the top wall portion, the top wall and adjacent part of the side wall having a first radius of curvature and the bottom wall and adjacent part of the side wall being curved about a second radius of curvature, the first radius of curvature emanating from a point spaced from and vertically above the point from which the second radius of curvature emanates, the spacing of said points being less than the length of each of the first radius and the second radius.

Claim 5

The container of claim 2 further characterized in that said side wall has a portion between said adjacent parts of the side wall that has an exterior surface, the horizontal dimension from a point vertically between the points of the first and second radii of curvature and the exterior surface being slightly greater than the dimension of each of the first and second radii of curvature and the dimension from said point between said points to the exterior surface adjacent the juncture of the portion between the adjacent parts with the side wall part adjacent the bottom being slightly greater than the horizontal dimension.

Claim 6

A container for beer comprising a keg having integrally joined top, bottom and side walls defining a keg chamber, said walls being made of unitary formed plastic, said side wall having a portion defining a plug mounting member opening and said top wall having a portion defining a tapper plug mounting member opening, a filler plug mounting member mounted in the side wall opening by said side wall portion, and a tapper plug mounting member mounted in said top wall opening in adhered relationship to the top wall portion, the top wall including a portion which defines the top opening having a first bore portion of a given diameter that opens through the keg outer surface, a second bore portion of a substantially smaller diameter than said given diameter that opens to the first bore portion remote from the keg outer surface, a third bore portion opening to the second bore portion remote from the first bore portion and having radial extending recesses of a greater radius than the radius of the second bore portion, and a fourth bore portion opening to the third bore portion and to the interior of the third bore and to the interior of the keg that is of a smaller diameter than the third bore portion, and the tapper plug mounting member including a first flange portion of a substantially smaller diameter than the first bore portion, an annular second flange portion integrally joined to the first flange portion, and an annular third flange portion joined to the inner end of the second flange portion to extend away therefrom in a direction away from the first flange portion that is of a larger diameter than the second flange portion and is provided with circumferentially spaced cutouts, said third flange portion extending into the third bore portion recesses.

Claim 7

A container for beer comprising a keg having integrally joined top, bottom and side walls defining a keg chamber, said walls being made of unitary formed plastic, said side wall having a portion defining a plug mounting member opening and said top wall having a portion defining a tapper plug mounting member opening, a filler plug mounting member mounted in the side wall opening by said side wall portion, and a tapper plug mounting member mounted in said top wall opening in adhered relationship to the top wall portion, the top wall including a portion which defines the top opening having a first bore portion of a given diameter that opens through the keg outer surface, a second bore portion of a substantially smaller diameter than said given diameter that opens to the first bore portion remote from the keg outer surface, a third bore portion opening to the second bore portion remote from the first bore portion and having radial extending recesses of a greater radius than the radius of the second bore portion, and a fourth bore portion opening to the third bore portion and to the interior of the third bore and to the interior of the keg that is of a smaller diameter than the third bore portion, and the tapper plug mounting member including a first flange portion of a substantially smaller diameter than the first bore portion, an annular second flange portion integrally joined to the first flange portion, and an annular third flange portion joined to the inner end of the second flange portion to extend away therefrom in a direction away from the first flange portion that is of a larger diameter than the second flange portion and is provided with circumferentially spaced cutouts, said third flange portion extending into the third bore portion recesses.

Claim 8

The container of claim 4 further characterized in that the third flange portion has an inner, annular radial surface remote from the second flange portion and that the top wall portion has an annular portion abutting against said inner, annular radial surface.

Claim 9

A container for beer comprising a keg having integrally joined top, bottom and side walls defining a keg chamber, said walls being made of unitary formed plastic, one of said walls having a portion defining a plug mounting member opening and a plug mounting member mounted in said wall opening in adhered relationship to said wall portion, the portion which defines the opening having a first bore portion of a given diameter that opens through the keg outer surface, a second bore portion of a substantially smaller diameter than said given diameter that opens to the fiRst bore portion remote from the keg outer surface, a third bore portion opening to the second bore portion remote from the first bore portion and having radial extending recesses of a greater radius than the radius of the second bore portion, and a fourth bore portion opening to the third bore portion and to the interior of the third bore and to the interior of the key that is of a smaller diameter than the third bore portion, and the plug mounting member including a first flange portion, an annular second flange portion integrally joined to the first flange portion, and in sealing fitting relationship to the second bore portion, and an annular third flange portion joined to the inner end of the second flange portion to extend away therefrom in a direction away from the first flange portion that is of a larger diameter than the second flange portion and is provided with circumferentially spaced cutouts, said third flange portion extending into the third bore portion recesses and having an inner, annular radial surface remote from the second flange portion, and said wall portion having a portion abutting against said inner, annular radial surface.

Claim 10

A container for beer comprising a keg having integrally joined top, bottom and side walls defining a keg chamber, said walls being made of unitary formed plastic, one of said walls having a portion defining a plug mounting member opening and a plug mounting member mounted in said wall opening in adhered relationship to said wall portion, the portion which defines the opening having a first bore portion of a given diameter that opens through the keg outer surface, a second bore portion of a substantially smaller diameter than said given diameter that opens to the fiRst bore portion remote from the keg outer surface, a third bore portion opening to the second bore portion remote from the first bore portion and having radial extending recesses of a greater radius than the radius of the second bore portion, and a fourth bore portion opening to the third bore portion and to the interior of the third bore and to the interior of the key that is of a smaller diameter than the third bore portion, and the plug mounting member including a first flange portion, an annular second flange portion integrally joined to the first flange portion, and in sealing fitting relationship to the second bore portion, and an annular third flange portion joined to the inner end of the second flange portion to extend away therefrom in a direction away from the first flange portion that is of a larger diameter than the second flange portion and is provided with circumferentially spaced cutouts, said third flange portion extending into the third bore portion recesses and having an inner, annular radial surface remote from the second flange portion, and said wall portion having a portion abutting against said inner, annular radial surface.