초록 ▼

A molded plastic closure for a beverage container, the closure having a shell with a top panel and a depending skirt, the shell being molded in one piece from a hard thermoplastic material. The closure is provided with an annular flange which extends from the underside of the top panel and which for

A molded plastic closure for a beverage container, the closure having a shell with a top panel and a depending skirt, the shell being molded in one piece from a hard thermoplastic material. The closure is provided with an annular flange which extends from the underside of the top panel and which forms an annular space with the inside of the skirt. A liner is formed in situ within the closure by compression molding from a compression moldable soft, rubbery thermoplastic material, the underside of the top panel and the inside of the annular flange serving as molding surfaces. The annular flange is supported against lateral loads by a series of ribs which extend between the annular flange and the depending skirt. The liner is interlocked with the annular flange by interengaging ribs and recesses. Both a top seal only closure for non-pressurized beverages and a top and side seal closure for pressurized beverages are disclosed.

대표청구항 ▼

A closure for sealingly engaging the finish portion of a container, the finish portion of the container terminating in a rim and including closure engaging means, said closure comprising, in combination: a top portion adapted to span the finish of the container; an annular skirt extending downwardly

A closure for sealingly engaging the finish portion of a container, the finish portion of the container terminating in a rim and including closure engaging means, said closure comprising, in combination: a top portion adapted to span the finish of the container; an annular skirt extending downwardly from said top portion and being adapted to surround an upper portion of the finish portion of the container, including the rim, said skirt including engaging means for securely engaging the finish portion of the container; an annular member extending downwardly from said top portion, said annular member being separated from said annular skirt and forming an annular space therebetween; a plurality of spaced apart ribs positioned in an annular array in said annular space, each of said ribs extending between said annular skirt and said annular member; sealing liner means positioned inside of said annular member and against said finish portion of said container, said sealing liner means being adapted to be compressed between said top portion of said closure and at least the rim of the finish portion of the container, whereby said closure may sealingly engage the finish portion of the container when said closure is securely engaged to the finish portion of the container, said ribs being adapted to reinforce said annular member against deformation when said closure sealingly engage the finish portion of the container.