Container construction

Details Container construction Container construction

1981-02-17

1982-09-14

Hall, George T.

Receptacles

Closures

Removable closure retained by ductile in situ deformation

220307, 220 72, 220 74, B65D 4116, B65D 4118

Patent

active

043491197

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.

REFERENCES:
patent: 4210258 (1980-07-01), Von Holdt
patent: 4293080 (1981-10-01), Letica

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