U.S. patent application number 16/618210 was filed with the patent office on 2020-04-16 for cooking container having steam discharge portion.
The applicant listed for this patent is CJ CHEILJEDANG CORPORATION. Invention is credited to Gyu Hwan CHA, Kyoung Sik CHO, Ki Pyo KIM, Yong Hwan KIM, Byung Kook LEE, Dong Hui PARK, Kwang Soo PARK, Tae kyung YUN.
Application Number | 20200115120 16/618210 |
Document ID | / |
Family ID | 64456104 |
Filed Date | 2020-04-16 |
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United States Patent
Application |
20200115120 |
Kind Code |
A1 |
KIM; Ki Pyo ; et
al. |
April 16, 2020 |
COOKING CONTAINER HAVING STEAM DISCHARGE PORTION
Abstract
The present disclosure relates to a cooking container having a
steam discharge portion, wherein a lid film attached on the steam
container does not need to be opened when seal-packed food is
heated and cooked by using a microwave oven, and a uniform pressure
can be maintained during heating and cooking so that cooking
quality of the corresponding content can be improved.
Inventors: |
KIM; Ki Pyo; (Seoul, KR)
; PARK; Dong Hui; (Seoul, KR) ; LEE; Byung
Kook; (Seoul, KR) ; KIM; Yong Hwan; (Seoul,
KR) ; PARK; Kwang Soo; (Gwacheon-si, KR) ;
CHO; Kyoung Sik; (Seoul, KR) ; CHA; Gyu Hwan;
(Seoul, KR) ; YUN; Tae kyung; (Seoul, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CJ CHEILJEDANG CORPORATION |
Seoul |
|
KR |
|
|
Family ID: |
64456104 |
Appl. No.: |
16/618210 |
Filed: |
May 28, 2018 |
PCT Filed: |
May 28, 2018 |
PCT NO: |
PCT/KR2018/006017 |
371 Date: |
November 29, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A47J 36/02 20130101;
B65D 81/34 20130101; B65D 51/1638 20130101; B65D 77/225 20130101;
B65D 81/3453 20130101; B65D 2205/00 20130101; B65D 2581/34
20130101 |
International
Class: |
B65D 51/16 20060101
B65D051/16; B65D 81/34 20060101 B65D081/34 |
Foreign Application Data
Date |
Code |
Application Number |
May 29, 2017 |
KR |
20-2017-0002610 |
Claims
1. A cooking container comprising: a main body portion including an
accommodating space whose upper portion opens; a flange portion
formed to seal and attach a lid film on an upper edge of the main
body portion; and a steam discharge portion formed in the flange
portion and including a discharge opening whose width narrows
toward the outside of the cooking container from the inside of the
cooking container as seen from above, wherein, when an inside
pressure of the accommodating space reaches a predetermined
pressure by steam generated during heating and cooking, an adhesive
surface of the lid film attached on the steam discharge portion
bursts to discharge the steam.
2. The cooking container of claim 1, wherein the main body portion
includes a plurality of corners and the plurality of corners are
rounded, as seen from above.
3. The cooking container of claim 1, wherein, in the main body
portion, connection portions between inner side surfaces of the
accommodating space and a bottom surface of the accommodating space
are round.
4. The cooking container of claim 2, the steam discharge portion is
formed in at least one corner of the plurality of corners of the
main body portion.
5. The cooking container of claim 1, wherein the steam discharge
portion is formed in a protrusion for attaching the lid film, the
protrusion protruding from an upper surface of the flange portion
and formed in the shape of a simple closed curve.
6. The cooking container of claim 5, wherein the steam discharge
portion further comprises an inclined surface inclined downward
toward the inside of the main body portion from the outside of the
main body portion.
7. The cooking container of claim 6, wherein an upper surface of
the protrusion comprises a first adhesive surface for causing the
lid film to be easily attached on the upper surface of the
protrusion, and on an upper surface of the discharge opening, a
second adhesive surface extending from the first adhesive surface
and having a narrower width than the first adhesive surface by the
inclined surface is formed.
8. The cooking container of claim 6, wherein the steam discharge
portion further comprises an auxiliary discharge opening formed in
a center of one side of the main body portion.
9. The cooking container of claim 5, wherein, in the protrusion for
attaching the lid film, a container opening portion is further
formed in a shape whose width is widened toward the inside from the
outside.
10. The cooking container of claim 1, wherein the discharge opening
is a plurality of openings arranged in succession.
Description
TECHNICAL FIELD
[0001] The present disclosure relates to a cooking container, and
more particularly, to a cooking container having a steam discharge
portion, wherein a lid film attached on the cooking container does
not need to be opened when seal-packed food is heated and cooked by
using a microwave oven.
BACKGROUND ART
[0002] In general, instant food means processed food that can be
easily cooked in a short time and has the convenience in storage,
delivery, and carrying.
[0003] Instant food is released in the state in which a cooking
container with cooked food is heat-sealed at the opening by a lid
film. Instant food has an advantage that it can be eaten only by
being heated in a microwave oven, hot water, etc.
[0004] A cooking container capable of storing instant food is
disclosed in Korean Utility Model Registration No. 20-0414773
(Publish Date: Apr. 24, 2006), etc.
[0005] When typical instant food is heated in a microwave oven, the
instant food needs to be heated for a specific time after a lid
film attached on the container is partially opened. That is, if the
instant food is heated in a microwave oven in the state that the
lid film is not opened, the inside pressure of the container
increases as the corresponding content is heated, and due to a high
pressure, an attachment area between the container and the lid film
bursts and thus the content may leak out.
[0006] Also, there is a problem that although lid films are opened
to cook instant food, the cooking qualities of the instant food are
non-uniform due to differences between torn-off parts of the lid
films according to individual tendencies. That is, when the lid
film is opened more than needed, the surface of the corresponding
food may dry up, which may cause consumer complaints.
DESCRIPTION OF EMBODIMENTS
Technical Problem
[0007] To solve the above-described problem, an object of the
present disclosure is to provide a cooking container having a steam
discharge portion, wherein a lid film attached on the cooking
container does not need to be opened when seal-packed food is
heated and cooked by using a microwave oven, and a uniform pressure
can be maintained during heating and cooking so that cooking
quality of the corresponding content can be improved.
Solution to Problem
[0008] To implement the above-described object, the cooking
container having the steam discharge portion according to the
present disclosure includes: a main body portion 110 having an
accommodating space 111 whose upper portion opens; a flange portion
120 formed at an upper edge of the main body portion 110 such that
a lid film 200 is sealed and attached on the flange portion 120;
and a steam discharge portion 130 formed in the flange portion 120
and including a discharge opening 131 whose width narrows toward
the outside from the inside as seen from above, wherein, when an
inside pressure of the accommodating space 111 reaches a
predetermined pressure by steam generated during cooking, an
adhesive surface of the lid film 200 attached on the steam
discharge portion 130 bursts to discharge the steam.
Advantageous Effects of Disclosure
[0009] The present disclosure configured as described above
includes a steam discharge portion at a side of a cooking container
such that the steam discharge portion bursts automatically when an
inside pressure of the cooking container reaches a predetermined
pressure, wherein a lid film attached on the cooking container does
not need to be opened during heating and cooking through a
microwave oven. Therefore, a uniform pressure can be maintained
during cooking to keep cooking quality uniform and food can be more
quickly heated due to application of the inside pressure.
BRIEF DESCRIPTION OF DRAWINGS
[0010] FIG. 1 is a perspective view of a cooking container
including a steam discharge portion according to the present
disclosure.
[0011] FIG. 2 is a top view of a cooking container including a
steam discharge portion according to the present disclosure.
[0012] FIG. 3 is an enlarged view of an area `A` of FIG. 1.
[0013] FIG. 4 is a cross-sectional view taken along line I-I of
FIG. 2.
[0014] FIGS. 5A to 5C show use states of a cooking container
including a steam discharge portion according to the present
disclosure.
MODE OF DISCLOSURE
[0015] Hereinafter, configurations and operations of preferred
embodiments of the present disclosure will be described in detail
with reference to the accompanying drawings.
[0016] Herein, like components of the drawings are assigned like
reference numerals although the components are shown in different
drawings.
[0017] Referring to FIG. 1, a cooking container 100 according to a
preferred embodiment of the present disclosure may include a main
body portion 110, a flange portion 120, and a steam discharge
portion 130.
[0018] The components of the present disclosure will be described
in detail, as follows.
[0019] The main body portion 110, which forms a main body of the
cooking container 100, may include an accommodating space 111 whose
upper portion opens to accommodate content that is to be cooked.
The main body portion 110 may be made of a synthetic resin
material.
[0020] More specifically, the main body portion 110 may be round at
a plurality of corners, as seen from above. More particularly, the
plurality of corners may be three to five corners, and the main
body portion 110 may be in the shape of a rectangle having four
corners.
[0021] Also, connection portions between inner side surfaces and a
bottom surface of the main body portion 110 may be round. More
specifically, a curvature of the rounded portions may be 5R or
smaller. That is, because the accommodating space 111 in the main
body portion 110 is round, a steam pressure generated during
heating and cooking may be prevented from being concentrated on the
corners rather than the steam discharge portion 130.
[0022] In this case, on the bottom surface of the main body portion
110, a protruding portion 113 may protrude vertically upward. That
is, the protruding portion 113 may space content accommodated in
the main body portion 110 a predetermined height from the bottom
surface, and through the protruding portion 113, the content may be
heated through.
[0023] The flange portion 120 may extend outward from the upper
edge of the main body portion 110 and have a predetermined width. A
lid film 200 (see FIG. 5A) may be attached on the flange portion
120 to seal and pack the content accommodated in the accommodating
space 111.
[0024] More specifically, a protrusion 121 for attaching a lid
film, the protrusion 121 being formed in the shape of a simple
closed curve, may protrude from an upper surface of the flange
portion 120 to easily seal and attach the lid film 200 thereon. The
protrusion 121 may be formed with a uniform width, and on an upper
surface of the protrusion 121, a first adhesive surface 121a may be
formed evenly to easily attach the lid film 200 thereon.
[0025] Because the protrusion 121 for attachment is formed, content
may flow down from the protrusion 121 for attachment at the upper
surface of the flange portion 120, after the content is put in the
inside of the cooking container 100 and then sealed by the lid film
200, so that sealing safety of the lid film 200 may be
improved.
[0026] In this case, a protruding thickness of the protrusion 121
may be at least 1 mm or greater, and a draft angle of 1.degree. or
greater may be applied straightly upward to facilitate
thermoforming using a mold. In addition, the first adhesive surface
121a may be formed with a width of at least 1 mm or greater.
[0027] Referring to FIG. 2, in the steam discharge portion 130, the
discharge opening 131 may be formed in the protrusion 121 formed on
the upper surface of the flange portion 120, and when steam
generated in the accommodating space 111 during heating and cooking
reaches a predetermined pressure, the adhesive surface of the lid
film 200 may burst to open, thereby discharging the steam.
[0028] More specifically, in the steam discharge portion 130, the
width of the discharge opening 131 may gradually narrow toward the
outside from the inside as seen from above, and the discharge
opening 131 may be a plurality of openings arranged in succession.
More specifically, the steam discharge portion 130 may include a
single discharge opening 131 formed in the shape of `V` or `U`, or
two discharge openings 131 formed in the shape of `W`.
[0029] That is, the discharge opening 131 may form an area of the
protrusion 121 and extend to the outside of the flange portion 120
with respect to the protrusion 121 to guide steam in the
accommodating space 111 to be concentrated toward the discharge
opening 131.
[0030] Referring to FIGS. 3 and 4, on an upper surface of the
discharge opening 131, a second adhesive surface 131a extending
from the first adhesive surface 121a of the protrusion 121 may be
formed to seal and attach the lid film 200 thereon.
[0031] In this case, in the discharge opening 131, an inclined
surface 131b inclined downward toward the inside of the main body
portion 110 from the outside of the main body portion 110 may be
formed, and due to the inclined surface 131b, the second adhesive
surface 131a formed in the discharge opening 131 may have a
narrower width than the first adhesive surface 121a of the
protrusion 121.
[0032] That is, steam generated in the accommodating space 111 may
be smoothly guided toward the discharge opening 131 by the inclined
surface 131b, and also, the second adhesive surface 131a having a
narrower width than the first adhesive surface 121a may be set to
first burst by a pressure of the steam. In other words, only the
second adhesive surface 131a having a weaker adhesive strength than
the first adhesive surface 121a may burst, and the first adhesive
surface 121a may be maintained in a strong adhesion state.
[0033] Referring again to FIG. 2, at least one steam discharge
portion 130 of the above-described structure, more particularly,
one to four steam discharge portions 130 may be formed at intervals
along the protrusion 121, and the steam discharge portion 130 may
be formed in at least one corner among the four corners of the main
body portion 110. That is, it may be efficient that the steam
discharge portion 130 is disposed at a corner of the main body
portion 110 at which steam generated in the accommodating space 111
is concentrated.
[0034] In addition, an auxiliary discharge opening 133 may be
formed in a center of one side of the main body portion 110. The
auxiliary discharge opening 133 may be formed in the same shape as
the discharge opening 131, although its installation position is
different from that of the discharge opening 131. That is, the
discharge opening 131 performing a main function of the steam
discharge portion 130 may burst first because the discharge opening
131 is positioned at the corner of the main body portion 110, and
the auxiliary discharge opening 133 may be positioned at the center
of one side of the main body portion 110 at which a steam pressure
is less concentrated than at the discharge opening 131.
[0035] In other words, the auxiliary discharge opening 133 may be
set to burst additionally when there are difficulties in
discharging steam generated in the accommodating space 11 only
through the discharge opening 131 due to a high steam pressure, so
that an inside pressure of the accommodating space 111 may be
maintained uniform.
[0036] For example, the steam discharge portion 130 may be
configured by positioning a pair of discharge openings 131 at both
corners of one side of the main body portion 110 and positioning a
single auxiliary discharge opening 133 at a center of the opposite
side of the main body portion 110.
[0037] Meanwhile, in the protrusion 121 for attaching the lid film,
a container opening portion 140 may be further formed, wherein the
container opening portion 140 is formed in a shape whose width is
widened toward the inside from the outside, for example, in the
shape of `V`, and the container opening portion 140 may have the
same width as the first adhesive surface 121a. The container
opening portion 140 may be formed at a center of one side of the
main body portion 110 at which a steam pressure is less
concentrated than at the discharge opening 131.
[0038] In this case, the container opening portion 140 formed at
the center of the side may increase an attachment area between the
lid film 200 and the side of the main body portion 110 upon heating
and cooking, thereby improving a sealing force in the cooking
container 100 so that the discharge opening 131 is easily torn off
according to an increase in a steam pressure. In addition, a sharp
part of the container opening portion 140 may extend toward the
outside of the protrusion 121, and therefore, after heating and
cooking is completed, a user may easily open the cooking container
100 by pulling the lid film 200 attached on the container opening
portion 140.
[0039] Also, in the lid film 200 attached on an upper surface of
the container opening portion 140, preferably, an extension portion
(not shown) may extend outward in the shape of a semicircle to
enable the user to easily tear off the lid film 200.
[0040] Hereinafter, an operation of the cooking container 100
including the steam discharge portion according to the present
disclosure of the above-described configuration will be described
with reference to FIGS. 5A to 5C.
[0041] First, as shown in FIG. 5A, the cooking container 100, in
which food is put in the accommodating space 111, may be put in a
microwave oven to heat and cook the food. At this time, the lid
film 200 may be not opened.
[0042] Referring to FIG. 5B, as the food is heated, temperature may
rise. The rising of the temperature may generate steam from the
content, and the generated steam may increase an inside pressure of
the main body portion 110. As a steam pressure in the main body
portion 110 increases, the lid film 200 may start being
inflated.
[0043] Referring to FIG. 5C, when the steam pressure in the main
body portion 110 reaches a predetermined pressure, the adhesive
surface of the lid film 200 on the discharge opening 131 positioned
at a corner of the main body portion 110 may first burst to open.
That is, the second discharge opening 131a of the discharge portion
131, the second adhesive surface 131a having a narrower width than
the first adhesive surface 121a of the protrusion 121, may first
burst, so that the lid film 200 may discharge the steam generated
in the accommodating space 111.
[0044] In this case, when there are difficulties in smoothly
discharging the steam generated in the accommodating space 11 only
through the discharge opening 131 due to a high steam pressure of
the accommodating space 111, the auxiliary discharge opening 133
positioned at the center of the opposite side of the main body
portion 110 may burst additionally.
[0045] Therefore, steam in the main body portion 110 may be
maintained at a uniform pressure, and even after the discharge
opening 131 is opened, a steam pressure may not fall sharply, and
thus, content may be cooked smoothly.
[0046] While the present disclosure has been particularly shown and
described with reference to example embodiments thereof, various
modifications and adaptations will be readily apparent to one of
ordinary skill in the art without departing from the spirit and
scope of the present disclosure.
TABLE-US-00001 [DESCRIPTION OF REFERENCE NUMERALS] 100: cooking
container 110: main body portion 111: accommodating space 113:
protruding portion 120: flange portion 121: protrusion 121a: first
adhesive surface 130: steam discharge portion 131: discharge
opening 131a: second adhesive surface 131b: inclined surface 133:
auxiliary discharge opening 140: container opening portion 200: lid
film
* * * * *