US 5,395,003 A · Covered airtight container

Abstract

A covered airtight container capable of preventing a soup from leaking therefrom. The covered airtight container comprises a body made of hard plastics and a cover made of soft plastics wherein the cover has a reverse channel-shaped edge portion piece formed by bending the upper end edge thereof upward and reversing it downward so as to cover the upper end portion of the body. The body has an annular stepped portion to which the cover is retained at the inner peripheral surface of the upper end portion of the peripheral wall. The cover has an annularly projected fin for elastically contacting the edge of said annular stepped portion. The covered airtight container may be formed square shaped with circumferential surfaces of the body and cover being slightly curved shape close to a circle. Particularly, the leaking prevention effect can be conspicuous since the sealing effect or state is assured at the inner and outer surfaces of the peripheral wall of the body. Even if the edge portion piece is pulled off after the cover is open so that the vertical double annular projection of the body is disengaged from the vertical annular grooves, the soup is prevented from leaking because of the annular fin of the cover. As a result, the container can be used even after the cover is open. When the covered airtight container is formed square shaped while the circumferential surfaces of the body and cover are formed in a curved shape, it does not occupy much space during transportation or the keeping thereof and the end of the edge portion piece of the cover can be cut off along the upper annular groove, which is very convenient for handling.

Claims9

Dependent claims

A covered airtight container comprising:

a body made of hard plastics and a cover made of soft plastics;
said cover having a reverse channel-shaped edge portion piece formed by bending an upper end edge thereof upward and reversing said upper end edge downward so as to cover an upper end portion of a peripheral wall of said body, said body having vertically arranged upper and lower annular projections at an outer peripheral surface of said upper end portion, each of said annular projections being triangular in cross section to form a clearance angle at a lower portion thereof, and said edge portion piece of said cover having vertically arranged upper and lower annular grooves for engaging with said annular projections of said body and a means for opening said cover extending along said upper annular groove, said upper groove being the uppermost groove on said edge portion.

Dependencies are inferred from the claim text.

Covered airtight container

Life of this patent

Covered airtight container

Life of this patent

Abstract

Claims9