초록 ▼

A lid retainer is provided for a "paint can" type container having a lid that is secured to the top wall thereof by multi-friction fit. The lid retainer is composed of a high tensile strength, impact resistant polymer material having limited flexible and defines a circular body section with a circul

A lid retainer is provided for a "paint can" type container having a lid that is secured to the top wall thereof by multi-friction fit. The lid retainer is composed of a high tensile strength, impact resistant polymer material having limited flexible and defines a circular body section with a circular lid retainer flange and a circular locking flange projection downwardly from respective inner and outer radial extents of the circular body section. The locking flange has a radially inwardly extending locking projection having a downwardly and radially inwardly facing can surface disposed for camming engagement with the circular bead that interconnects the side and top walls of the container and induces yielding of the retainer flange as the locking projection passes over the circular bead. The retainer flange is positioned for circular contact with the central panel of the lid at a location radially inwardly of the friction seal for the lid of the container and radially inwardly of the central opening of the top wall, thereby providing sufficient mechanical advantage to effectively resist pressure induced unseating of the lid from the top wall.

대표청구항 ▼

[ What is claimed is:] [1.] A container assembly comprising:(a) a double friction seal type container having a side wall and a top wall being secured to the side wall by an outer peripheral bead having a downwardly facing outer peripheral shoulder, said top wall defining a circular friction seal cha

[ What is claimed is:] [1.] A container assembly comprising:(a) a double friction seal type container having a side wall and a top wall being secured to the side wall by an outer peripheral bead having a downwardly facing outer peripheral shoulder, said top wall defining a circular friction seal channel having a U-shaped cross-section and defining an opening for said top wall of said container;(b) a removable friction lid in pressure friction sealed relation with said top wall, said removable friction lid having a circular central lid panel having a center and having an outer U-shaped circular friction member in removable frictional sealing engagement with said U-shaped friction seal channel of said top wall of retainer body said container;(c) a lid retainer ring having a circular defining inner and outer peripheries and having a sufficient radial width to extend from the outer peripheral bead of said container to a location radially inwardly of said circular lid seal and to overlay an intermediate portion of said central lid panel of said container lid between said circular lid seal and said center of said removable friction lid when said container lid is in seated frictional sealing assembly with said top wall of said container;(d) a circular inner retainer flange extending downwardly from said inner periphery of said circular retainer body and having lid retaining engagement with said intermediate portion of said central lid panel of said removable friction lid at a location radially inwardly of said circular lid seal and between said circular lid seal and said center of said central lid panel and resisting container pressure induced bulging of said central lid panel and resisting container pressure induced unseating movement of said friction lid; and(e) an outer circular locking flange extending downwardly from said outer periphery of said circular retainer body and defining an upwardly facing locking shoulder having locking engagement with said downwardly facing outer peripheral shoulder of said outer peripheral bead of said container.