초록 ▼

A flexible, plastic lid for sealing containers such as drums and pails having an open top formed with a contoured lip includes a center portion and an annular edge portion extending radially outwardly from the center portion. The annular edge portion comprises an inner curl, an outer curl and an int

A flexible, plastic lid for sealing containers such as drums and pails having an open top formed with a contoured lip includes a center portion and an annular edge portion extending radially outwardly from the center portion. The annular edge portion comprises an inner curl, an outer curl and an intermediate curl disposed therebetween. The outer curl is formed with a convex inner surface having spaced projections which is adapted to flex and stretch over the contoured lip of the drum so that the inner surface, including the spaced projections, engage the lip to form an effective seal therebetween. A number of locking clips are spaced at regular intervals about the lid and are adapted to snap-fit over the lid and against the lip of the container to enhance the seal therebetween.

대표청구항 ▼

A flexible, plastic lid for sealing a container having an open top formed with a lip, comprising: a center portion; an annular, inner curl connected to said center portion; an annular, intermediate curl extending radially outwardly from said inner curl; an annular, outer curl extending radially outw

A flexible, plastic lid for sealing a container having an open top formed with a lip, comprising: a center portion; an annular, inner curl connected to said center portion; an annular, intermediate curl extending radially outwardly from said inner curl; an annular, outer curl extending radially outwardly from said intermediate curl, said outer curl having a curved inner surface formed with at least one annularly projecting ridge, said outer curl being adapted to flex and stretch over said lip of said container so that said inner surface including said projecting ridge engages said lip forming a seal therebetween, said container includes a closed bottom formed with an annular rim, said inner curl being formed with a convex outer surface, said outer curl being formed with a convex outer surface and said intermediate curl being formed with a convex outer surface spaced vertically below said outer surfaces of said inner and outer curls, said inner curl surface spaced below said outer curl surface, said lid permitting stacking of a second container atop said container sealed by said lid wherein said bottom rim of said second container is adapted to be received within said intermediate curl, said intermediate curl positioning said second container so that said outer wall of said second container substantially aligns with said outer wall of said sealed container beneath, the weight of said second container thereby being supported by said outer wall of said sealed container beneath to protect said lid from damage.