U.S. patent application number 10/240469 was filed with the patent office on 2003-08-28 for airtight container cover that is made by double injection molding method.
Invention is credited to Moon, Jaegu, Park, Junggeum.
Application Number | 20030160056 10/240469 |
Document ID | / |
Family ID | 19661114 |
Filed Date | 2003-08-28 |
United States Patent
Application |
20030160056 |
Kind Code |
A1 |
Moon, Jaegu ; et
al. |
August 28, 2003 |
Airtight container cover that is made by double injection molding
method
Abstract
A thin packing cover needs some pressing and bending process to
stick the packing material into the main cover. This inventory is
the packing cover which can be manufactured without bending or
pressing the main cover by the processing of double injection
molding method that can inject the packing plastic material from
upper and under packing place of the main cover.
Inventors: |
Moon, Jaegu; (Seoul, KR)
; Park, Junggeum; (Seoul, KR) |
Correspondence
Address: |
SHERIDAN ROSS PC
1560 BROADWAY
SUITE 1200
DENVER
CO
80202
|
Family ID: |
19661114 |
Appl. No.: |
10/240469 |
Filed: |
April 15, 2003 |
PCT Filed: |
March 30, 2001 |
PCT NO: |
PCT/KR01/00539 |
Current U.S.
Class: |
220/796 ;
220/806 |
Current CPC
Class: |
B65D 2543/00842
20130101; B65D 2543/00296 20130101; B65D 2543/00092 20130101; B65D
2543/00518 20130101; B65D 43/0218 20130101; B65D 2543/00194
20130101; B65D 2543/00537 20130101; B65D 2543/00555 20130101; B65D
2543/00231 20130101 |
Class at
Publication: |
220/796 ;
220/806 |
International
Class: |
B65D 043/08 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 1, 2000 |
KR |
2000/17182 |
Claims
What is claimed is:
1. An airtight container cover that is made by double injection
molding method wherein its improvement comprising, a body is formed
as one with the combining part, which is combined with the
container by double injection molding method, a coating layer is
protruded toward the top through the hole or the opening part on
the cover, so the airtight power is improved and the appearance is
excellent as well as the coating layer that is formed inside of the
combining part may not be separated.
2. An airtight container cover that is made by double injection
molding method as claimed in claim 1 wherein, the opening part is
formed instead of the said hole.
3. An airtight container cover that is made by double injection
molding method as claimed in claim 1 wherein, the trademark of the
product is printed on the surface of the protrusion that is
protruded toward the top of the cover.
4. An airtight container cover that is made by double injection
molding method as claimed in claim 1 wherein, the protrusion is
made by double injection molding method with the hole in the inner
wall of the combining part through the hole on the top of the
cover.
5. An airtight container cover that is made by double injection
molding method as claimed in claim 1 wherein, the protrusion is
formed on the inner wall or outer wall of the combining part by
double injection molding method and protruded through the hole on
the top of the cover.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a cover of container made
of plastic, more particularly to a cover of container, which its
airtight power is increased and a soil molding material and a rigid
molding material can be stuck to each other, so that after molding,
the cover is to be made smooth and flat.
[0003] At the recent years, the prior art is represented as a
container cover made by double injection molding method as shown in
FIG. 6, which is that after the body (11) of the cap (10) is made
at first, the part (10a) that is combined with the container (20)
is made of a soft material on the outer border of the cap (10) by
double injection molding method, which is formed the body (11), so
that the combining part (10a) has a better airtight power by means
of the soft viscosity,
[0004] However, this kind of prior art has some problems such as
the covered pat is scaling off and when cooled, the torture is
produced, which is not made the cover smooth and flat, because of
the differences in the molding condition with the body (11) of the
cap in regard that the body (11) of the cap is usually
injection-molded in the thickness of 1 mm and that thickness of the
cover, which is molded in the method covering over, is 0.1 mm.
[0005] Therefore, in order to prevent this torture, as shown in
FIG. 7, when the body (11) is formed as one with the combining part
(1a) by double injection molding method, the inside part of the
combining part (10a) is coating-treated with a soft material, so
that the coating-treated part (13) has a great airtight power due
to the viscosity.
[0006] Nevertheless, it is difficult to coat only the inside part
and because there is no way to connect the coating-treated part
with the body (11), the coated-treated part is scaling after
all.
[0007] 2. Discussion or Related Art
[0008] Thus, in order to solve the above-mentioned problem, as the
coating layer is formed inside part of the combining part (10a) by
double injection molding method, the said coating layer is
protruded toward the top through the hole or the opening part on
the cover, so the airtight power is improved and the appearance is
excellent as well as the coating layer that is formed inside of the
combining part (10a) may not be separated.
[0009] Brief Description of the Attached Drawings
[0010] FIG. 1 is a perspective view according to the embodiment of
the present invention
[0011] FIG. 2 is a perspective view showing the hole of the
cover
[0012] FIG. 3 is a perspective view showing the opening part
instead of the said hole
[0013] FIG. 4 is a sectional view showing the formation of the
outer wall.
[0014] FIG. 4A is a sectional view showing the formation of the
inner wall
[0015] FIG. 5 is a perspective view showing the hole perforated on
the cover of the container.
[0016] FIG. 6 is a sectional view of the embodiment of the prior
art made by double injection molding method
[0017] FIG. 7 is a sectional view showing the coating layer of the
prior art
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
[0018] The following is the detailed description of the most
desirable embodiment of the present invention. The most desirable
embodiment of this invention will be to described in detail
according to the attached drawings on the following and the same
referenced number will be used to mean the same drawing elements
regardless of different drawings.
[0019] As shown in FIGS. 1 and 4, while the combining part (10a)
wherein the cap (10) and the container (20) is combined, is formed
on with the body (11) of the cap, the coating layer (1) is formed
inside the combining part (10a) and the coating layer is protruded
toward the surface of the cap (10) through the bole (3), forming
the protrusion. This is designed to protect the coating layer (1)
from being scaling off.
[0020] The size and location of the hole (3) depends on the shape
of the surface of the body, and the opening part (4) can be used as
an alternative to the hole (3).
[0021] Also, the trademark of the product is printed on the surface
of the protrusion (2) that is protruded toward the top of the cap
(10). The trademark is printed on the mold which is used only for
double injection molding method. Therefore, it can lead to various
kinds of low-cost products' production.
[0022] And producing various kinds of products would be possible
when the protrusion (2) is formed in one along the outline of the
cap or is formed at an interval of a fixed space.
[0023] When the protrusion (2) is formed in one through the bole
(3) made in the top of the cap by making a hole in the inner wall
of the combining part wherein tile cap (10) and the container (20)
is combined, the air tight power is improved and the cap can be
prevented from being bent.
[0024] Also, tile inner wall is formed by double injection molding
method and the protrusion (2) is formed through the hole (3) of the
cap after the outer wall is formed on the combing part (10a)
wherein the cap and the container is formed.
[0025] Accordingly, the combining part (10a) is formed in one by
double injection molding method with a soft molding material,
resulting ill preventing the container cover from being bent.
Because the coating layer is formed in one with the cap through the
hole made in the cap, the coating layer can be firmly coated. And
the protrusion is formed when the coating layer is exposed on the
cap through the hole of the cap, so the trademark can be printed on
the protrusion, making the design of the container better.
* * * * *