US 4,349,119 A · Container construction

Abstract

A resealable, cylindrical plastic container assembly formed from high density thermoplastic includes a rim and lid interlock construction which provides an improved rim-to-lid seal. The container includes a plurality of circumferential and longitudinal reinforcement ribs adjacent the rim which are inset into the container sidewalls so as to avoid protuberances therefrom. A connecting flange above the reinforcement ribs supports the rim and provides a firm surface for supporting a pry tool used to remove the lid from the container. The rim comprises an exterior sealing bead and an interior locking lip connected by a substantially flat, inclined sealing surface. The lid is provided with interior and exterior locking portions defining a channel which grips and conformingly engages the rim to provide a fluid tight seal between the bead and locking lip of the container. Circumferentially spaced notches in the connecting flange provide access to a pry opening between the flange and the lid to facilitate removal of the lid.

Claims13

Dependent claims

An injection molded thermoplastic container, comprising:

a body including a generally cylindrical sidewall, a bottom wall formed integral with said sidewall, and an open top spaced from said bottom wall, said sidewall including upper and lower axially spaced apart portions;
a reinforcement section radially inset relative to said sidewall, said reinforcement section being formed integral with said body between said upper and lower portions of said sidewall and defining a discontinuity in said sidewall adjacent said top thereof;
and,
a label secured to said body and overlying at least parts of said upper and lower sidewall portions and said reinforcement section, said label conformingly engaging said parts of said upper and lower sidewall portions.

1 more element

Dependencies are inferred from the claim text.

Container construction

Life of this patent

Container construction

Life of this patent

Abstract

Claims13