초록 ▼

A plastic container lid is formed by injection molding and comprises a sheet-like main body portion with a downwardly-open hollow upwardly-extending annular projection extending around the periphery of the body portion, the annular projection having an inner wall extending upwardly from the peripher

A plastic container lid is formed by injection molding and comprises a sheet-like main body portion with a downwardly-open hollow upwardly-extending annular projection extending around the periphery of the body portion, the annular projection having an inner wall extending upwardly from the periphery of the body portion, a top wall extending radially outwardly from the top of the inner wall and an outer wall extending downwardly from the outer periphery of the top wall, with the inner and outer walls being substantially equal in height. An annular skirt portion which extends outwardly from the lower end of the outer wall and curves to extend downwardly to a lower annular edge. The skirt portion has an internal annular rib extending around and projecting inwardly from the inner surface of the skirt portion. The internal rib extends inwardly for a distance sufficiently short so as not to reach an imaginary vertical line extending downwardly from a radially outer limit of the outer wall of the upwardly-extending annular projection. Also, the height of the upwardly-extending annular projection above the main body portion is greater than the depth of the skirt portion below the main body portion.

대표청구항 ▼

A plastic container lid formed by injection molding and comprising a sheet-like main body portion, a downwardly-open upwardly-extending hollow annular projection extending around the periphery of the body portion, said upwardly-extending annular projection having an inner wall extending upwardly fro

A plastic container lid formed by injection molding and comprising a sheet-like main body portion, a downwardly-open upwardly-extending hollow annular projection extending around the periphery of the body portion, said upwardly-extending annular projection having an inner wall extending upwardly from the periphery of the body portion, a top wall extending radially outwardly from the top of the inner wall and an outer wall extending downwardly from the outer periphery of the top wall, said inner and outer walls being substantially equal in height, an annular skirt portion extending outwardly from the lower end of the outer wall and curving to extend downwardly to a lower annular edge, said skirt portion having an internal annular rib extending around and projecting inwardly from the inner surface of the skirt portion, said internal rib extending inwardly for a distance sufficiently short so as not to reach an imaginary vertical line extending downwardly from a radially outer limit of the outer wall of the upwardly-extending annular projection and the height of the upwardly-extending annular projection above the main body portion being greater than the depth of the skirt portion below the main body portion to enable the lid to be stacked upon a like lid with the lower ends of the inner and outer walls of the upwardly-extending annular projection of the upper lid engaging the top wall of the upwardly-extending annular projection of the lower lid.