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Container with seal structure

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20140151387 patent thumbnailZoom

Container with seal structure


Disclosed is a container with a seal structure having a base and a lid. The lid includes a top, a sidewall, a rim, a sealing edge, and a barb protruding from the lid sealing edge. The base includes a bottom, a sidewall, a rim, and a sealing edge. The lid sealing edge and the base sealing edge are molded to be correspondingly mateable with each other. Upon mating, an exterior region of the lid sealing edge attaches to an exterior region of the base sealing edge to form a seal, and the interior region of the lid sealing edge and the interior region of the base sealing edge gradually part from the point of attachment, forming a gap between the lid rim and the base rim.

Browse recent Taishan Changjiang Plastic Product Co., Ltd. patents - Taishan City, TW
USPTO Applicaton #: #20140151387 - Class: 220780 (USPTO) -
Receptacles > Closures >Removable Closure Situated By Resilient Distortion And Retained By Preformed Configuration (e.g., Detent)

Inventors: Linzhao Chen

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The Patent Description & Claims data below is from USPTO Patent Application 20140151387, Container with seal structure.

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PRIORITY

This application claims priority to a Chinese Patent Application filed on Nov. 30, 2012, and assigned Serial No. 201220653314.8, the content of which is incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to container technology, in particular to a sealed container with a detachable lid for storing food and liquid.

2. Background of the Invention

Containers are not only used to meet the requirement of storing liquid or solid, but also to provide secure closure to prevent spoilage of food and to transport or carry easily and conveniently.

Chinese patent CN102229371A, published on 2011 Nov. 2, discloses a food storage container, comprising a base and a lid; said lid is made of plastic, the circumference of said lid having a convex border toward the base; the opening edge of said base features an outward flange mated to the lid border; the sidewall of said lid also has a plurality of integral forming gripping jaws, said gripping jaws engage to the base flange to couple the lid and the base; said lid and said base are sealed with the help of a sealing ring; a securing ring with the shape of the cross section is movably coupled to the exterior of the lid, said securing ring being made of elastic deformative plastic; the length of the sidewall of said securing ring matches to the exterior of the lid and the length of securing claws coupled thereto, a plurality of transversely protruding hooks located near to the bottom of the interior of the sidewall, when the lid and the base tightly binding together, said hooks coupled to the lower side of the base flange, meanwhile, the side wall of the securing ring retaining the tight engagement between the gripping jaws on the lid and the base flange. With the securing ring movably coupled to the lid, said lid is able to stably attach to the base, therefore resulting in secure closure. Aforementioned food container can seal effectively, but it\'s complicated to assemble and requires the use of a sealing ring.

U.S. Pat. No. 6,196,404 discloses a triple seal container. Said contain forms three seals upon mating of the base and the lid. Said container is capable of sealing securely but is not easy and convenient to open.

SUMMARY

OF THE INVENTION

To overcome the disadvantages of the prior art, the present invention provides a container that can be sealed securely and also easily and readily assembled and disassembled.

To achieve the aforementioned goal, the present invention adopts the following techniques: a container with seal structure, comprising a base and a lid, wherein said lid having a top, a lid sidewall extending downward from the said top, a lid rim extending substantially horizontally outward from said lid sidewall, a lid sealing edge extending outward from said lid rim, wherein said sealing edge comprising an interior region closed to said lid rim and a exterior region far from said lid rim, a barb protruding from said lid sealing edge; and said base having a bottom, a base sidewall extending upward from said base bottom, a base rim extending substantially horizontally outward from said base sidewall, a base sealing edge extending outward from said base rim, wherein said sealing edge comprising an interior region closed to said base rim and an exterior region far from said base rim, said lid sealing edge and said base sealing rim molded to be mateable to each other, and upon mating, the exterior region of said lid sealing edge attaching to the exterior region of said base sealing edge to form a seal, the interior region of said lid sealing edge and the interior region of said base sealing edge gradually parting from the point of attachment, forming a gap between said lid rim and said base rim.

As a preferable embodiment, the exterior region of said lid sealing edge and the exterior region of said base sealing edge are concentric arcs, the interior region of said lid sealing edge and the interior region of said base sealing edge are straight lines extended from the end of the arcs with different tilted angles.

As a further preferable embodiment, said lid top features an annular slot and said base bottom features an annular ridge, said annular slot and said annular ridge featuring coincided projective position and being molded to be mateable, said annular ridge fitting into said annular slot when the base is placed on the lid top.

Preferably, said lid sidewall extending substantially vertically or at an outward angle downward from said lid top, facilitating stacking of a plurality of lids.

Preferably, said base sidewall extending substantially vertically or at outwardly extending angle downward from said base bottom, facilitating stacking of a plurality of bases.

As a typical implementation method, said base and said lid are substantially rectangular or square configuration

Alternatively, said base and said lid are substantially in the shape of a round cylinder.

The angle between said lid rim and said base rim is 5-10°.

Said base and said lid are made of plastic or rubber material.

The present invention improves the seal structure between the base and the lid, featuring attached sealing region between the edges of the lid and the base, which is gradually parting from the sealed region to the inner section to form a gap. Such structure allows better sealing effect with regard to plastic molding products, ensuring outermost sealing as well as easy disassembly.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of the embodiments of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of a cuboid container;

FIG. 2 is a schematic view of a cylinder container;

FIG. 3 is a schematic view of the seal when the lid is put on a base;

FIG. 4 is an enlarged view of section A of FIG. 3; and

FIG. 5 is a schematic view of a base is put on the lid.

DETAILED DESCRIPTION

OF EMBODIMENTS

The matters defined in the description, such as a detailed construction and specific elements, are provided to assist in a comprehensive understanding of the embodiments of the invention. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

FIGS. 1 and 2 show the integral structure diagram of the present invention. Said container may be in a shape of rectangle as in FIG. 1 or a circle as in FIG. 2. Said container comprises a lid 100 and a base 200.



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stats Patent Info
Application #
US 20140151387 A1
Publish Date
06/05/2014
Document #
13788930
File Date
03/07/2013
USPTO Class
220780
Other USPTO Classes
International Class
65D41/18
Drawings
4



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