초록 ▼

The open end of a substantially cylindrical injection molded resilient plastic container, such as a paint pail, has a rim system integrally molded to the container wall to rigidify the open end of the container to facilitate filling the container using standard automatic filling equipment. An outer

The open end of a substantially cylindrical injection molded resilient plastic container, such as a paint pail, has a rim system integrally molded to the container wall to rigidify the open end of the container to facilitate filling the container using standard automatic filling equipment. An outer continuous rim and an inner discontinuous rim concentric with the outer rim are joined by a bridge member to form a substantially rigid rim system at the open end of the container. The rim system coacts with a closure lid to form a removable and resealable end closure on the container. Drainage or expulsion of fluid from between the inner and outer rims is provided for by drain openings or slots which make the inner rim discontinuous.

대표청구항 ▼

In a plastic container having a substantially cylindrical wall portion, a bottom member sealingly closing a lower end of said cylindrical wall portion of said container and an upper end of said cylindrical wall portion being open and defined by a closure receiving and sealing rim system, said rim sy

In a plastic container having a substantially cylindrical wall portion, a bottom member sealingly closing a lower end of said cylindrical wall portion of said container and an upper end of said cylindrical wall portion being open and defined by a closure receiving and sealing rim system, said rim system comprising: a continuous annular resilient plastic bridge member formed integral with and extending around said upper end of said cylindrical wall; an outer continuous annular resilient plastic rim formed integral with said bridge member and extending axially upwardly from said bridge member; an inner discontinuous annular resilient plastic rim molded integral with said bridge member and extending axially upwardly from said bridge member, said inner rim being concentric with and radially inwardly spaced from said outer rim whereby said bridge member, said continuous outer rim and said discontinuous inner rim form a closure receiving and sealing container end which remains substantially radially annular and axially rigid.