Container for retort food

Patent metadata

Field	Value
Publication number	US-11964805-B2
Application number	US-202017425476-A
Country	US
Kind code	B2
Filing date	Jan 23, 2020
Priority date	Jan 25, 2019
Publication date	Apr 23, 2024
Grant date	Apr 23, 2024

Abstract

The present disclosure relates to a container for retort food and, more specifically, to a container for retort food including: a container body in which food may be input and stored; and an inner cap covering the container body. The inner cap covering the container body has a predetermined depth, and thus, effective sterilization may be performed during a retort processing process, overflow of the food in the container body may be prevented, and there is an advantage in satisfying regulations regarding a packing space ratio.

First claim

The invention claimed is:

1. A container for retort food, the container comprising:
a container body; and
an inner cap,
wherein the container body comprises
a container bowl part having a space which is recessed with a first depth in a downward direction and open in an upward direction and
a container flange part constituting a periphery of an upper end of the container bowl part,
wherein the inner cap comprises
a cap tray part having a space which is recessed with a second depth in the downward direction and open in the upward direction and
a cap flange part constituting a periphery of an upper end of the cap tray part,
wherein, when the inner cap is placed on the container body,
the cap tray part is located inside an upper region of an inner space of the container bowl part of the container body, and the cap tray part divides the inner space of the container bowl part into upper and lower spaces,
wherein, when thermal fusion is performed in a state in which the cap flange part is placed on the container flange part, the lower space inside the container bowl part is sealed,
wherein the cap tray part has a plurality of stacking protrusion portions, and having a rib which is formed on the bottom surface of the cap tray part and has a ring shape having a predetermined inner diameter and of which a cross-section has a shape having predetermined curvature, and
wherein the stacking protrusion portions are formed at positions overlapping the rib.

2. The container for retort food of claim 1 ,
wherein the container body is made of a first sheet having a predetermined thickness, and the inner cap is made of a second sheet having a predetermined thickness, and
the first sheet is two times to four times as thick as the second sheet.

3. The container for retort food of claim 2 ,
wherein the first sheet has a thickness of 0.9 mm to 1.2 mm, and
the second sheet has a thickness of 0.3 mm to 0.4 mm.

4. The container for retort food of claim 1 , wherein each of the container body and the inner cap has a multi-layer structure comprising an oxygen impermeable material.

5. The container for retort food of claim 1 , wherein the inner cap comprises an easy peelable (EPL) material so as to be easily peelable from the container flange part in a state in which a bottom surface of the cap flange part is thermally fused to a top surface of the container flange part.

6. The container for retort food of claim 1 , wherein each of the container bowl part and the cap tray part has, in at least a portion thereof, an arrangement portion having a predetermined width in a circumferential direction and having curvature different from that of the other regions.

7. The container for retort food of claim 1 ,
wherein the container body has a container handle that protrudes from the container flange part in an outer diameter direction, and
the inner cap has a cap handle that protrudes from the cap flange part in an outer diameter direction,
wherein a stepped portion is formed between the container handle and the container flange part, and
a top surface of the container handle is located below a top surface of the container flange part.

8. The container for retort food of claim 1 , wherein the container bowl part has a polygonal structure.

9. The container for retort food of claim 1 , wherein the cap tray part has a three-dimensional rib structure on a bottom surface thereof.

10. The container for retort food of claim 9 , wherein the three-dimensional rib structure comprises:
a first rib which is made of protrusions and recesses repeatedly formed along a circumferential region on the bottom surface of the cap tray part; and
a second rib which is formed on the bottom surface of the cap tray part and has a ring shape having a predetermined inner diameter and of which a cross-section has a shape having predetermined curvature.

11. The container for retort food of claim 1 ,
wherein three to six stacking protrusion portions are provided, and
formed on the bottom surface of the cap tray part and has a three-dimensional structure that protrudes in the upward direction.

12. The container for retort food of claim 1 , further comprising a lid film which is located above the inner cap to cover an inner space of the cap tray part and is in close contact with a top surface of the cap flange part.

Assignees

• Cj Cheiljedang Corp

Inventors

• Kim Ki Pyo
• Kim Yong Hwan
• Cho Kyoung Sik
• Park Kwang Soo
• Lee Byung Kook

Classifications

• B65D51/247 Primary

  located between an inner and an outer closure · CPC title

• B65D77/2008

  the container flange being crimped over the cover · CPC title

• B65D77/2024

  the cover being welded or adhered to the container · CPC title

• B65D81/3216

  Rigid containers disposed one within the other · CPC title

• B65D2251/0028

  of the 51-type · CPC title