Cooking utensil, inner cover assembly, and lid

Patent metadata

Field	Value
Publication number	US-2020107666-A1
Application number	US-201716621688-A
Country	US
Kind code	A1
Filing date	Nov 10, 2017
Priority date	Jun 16, 2017
Publication date	Apr 9, 2020
Grant date	—

Abstract

An inner cover assembly and a lid for a cooking utensil and a cooking utensil having the same are provided. The inner cover assembly includes: an inner cover having a major axis and a minor axis orthogonal each other; and a seal ring fitted over an outer peripheral edge of the inner cover. When the seal ring is not fitted over the inner cover in a natural state, a smooth transition is provided along an extending direction of the seal ring, and a maximum inner diameter of the seal ring is less than a length of the major axis of the inner cover.

First claim

1 . An inner cover assembly for a cooking utensil, comprising:
an inner cover having a major axis and a minor axis orthogonal to each other; and a seal ring fitted over an outer peripheral edge of the inner cover, wherein, when the seal ring is in a natural state where it is not fitted over the inner cover, a smooth transition is provided along an extending direction of the seal ring, and a maximum inner diameter of the seal ring is less than a length of the major axis of the inner cover.

2 . The inner cover assembly according to claim 1 , wherein when the seal ring is in the natural state, a maximum diameter of the seal ring is greater than a length of the minor axis of the inner cover.

3 . The inner cover assembly according to claim 1 , wherein when the seal ring is in the natural state, the seal ring has a horizontal axis and the minor axis orthogonal to each other, a ratio of the major axis to the minor axis is represented by a, a ratio of the horizontal axis to the minor axis is represented by b, and b is less than a.

4 . The inner cover assembly according to claim 1 , wherein the inner cover is in a shape of an oval and, wherein the seal ring is in a shape of a circle in the natural state.

5 . (canceled)

6 . The inner cover assembly according to claim 1 , wherein the seal ring is in a shape of an oval in the natural state.

7 . The inner cover assembly according to claim 1 , wherein the seal ring comprises:
a seal body in a shape of a closed loop; and a first skirt and a second skirt arranged on the seal body and spaced apart from each other along an axial direction of the seal body, and the outer peripheral edge of the inner cover being enclosed among the seal body, the first skirt, and the second skirt.

8 . The inner cover assembly according to claim 7 , wherein the first skirt and the second skirt obliquely extend along an axial direction of the inner cover from the seal body towards a direction away from the inner cover respectively.

9 . The inner cover assembly according to claim 1 , wherein the inner cover is in a shape of plate or a ring.

10 . The inner cover assembly according to claim 1 , wherein at two ends of the major axis of the inner cover, a tight fit is provided between the seal ring and the inner cover, and at a first and second end of the minor axis of the inner cover, a clearance fit is provided between the seal ring and the inner cover.

11 . The inner cover assembly according to claim 10 , wherein along a peripheral direction of the inner cover, as for adjacent ends of the major axis and the first and second end of the minor axis, a fitting clearance between the seal ring and the inner cover gradually reduces in a direction from the ends of the minor axis to the ends of the major axis.

12 . The inner cover assembly according to claim 10 , wherein the inner cover is in a shape of an oval.

13 . The inner cover assembly according to claim 12 , wherein when the seal ring is in the natural state where it is not fitted over the inner cover, the seal ring is in a shape of a circle.

14 . The inner cover assembly according to any one of claim 12 , wherein when the seal ring is in the natural state where it is not fitted over the inner cover, the seal ring is in a shape of an oval.

15 . The inner cover assembly according to claim 10 , wherein the inner cover is in a shape of a rectangle, and when the seal ring is in the natural state where it is not fitted over the inner cover, the seal ring is in a shape of a rectangle.

16 . The inner cover assembly according to claim 10 , wherein the seal ring comprises:
a seal body in a shape of a closed loop; and a first skirt and a second skirt arranged on the seal body and spaced apart from each other along an axial direction of the seal body, and the outer peripheral edge of the inner cover being enclosed among the seal body, the first skirt, and the second skirt.

17 . The inner cover assembly according to claim 16 , wherein the first skirt and the second skirt obliquely extend along an axial direction of the inner cover from the seal body towards a direction away from the inner cover respectively.

18 . The inner cover assembly according to claim 10 , wherein the inner cover is in a shape of plate or a ring.

19 . A lid for a cooking utensil, comprising:
an outer cover; and an inner cover assembly for a cooking utensil, comprising: an inner cover having a major axis and a minor axis orthogonal each other; and a seal ring fitted over an outer peripheral edge of the inner cover, wherein, when the seal ring is in a natural state where it is not fitted over the inner cover, a smooth transition is provided along an extending direction of the seal ring, and a maximum inner diameter of the seal ring is less than a length of the major axis of the inner cover, wherein the inner cover being mounted in the outer cover.

20 . A cooking utensil, comprising:
a utensil body; and a lid, comprising: an outer cover; and an inner cover assembly for a cooking utensil, comprising: an inner cover having a major axis and a minor axis orthogonal each other; and a seal ring fitted over an outer peripheral edge of the inner cover, wherein, when the seal ring is in a natural state where it is not fitted over the inner cover, a smooth transition is provided along an extending direction of the seal ring, and a maximum inner diameter of the seal ring is less than a length of the major axis of the inner cover, wherein, the inner cover being mounted in the outer cover and wherein the lid being provided on the utensil body to cover the utensil body, and the seal ring sealing a clearance between the lid and the utensil body.

21 . The cooking utensil according to claim 20 , wherein the cooking utensil is a pressure cooker.

Assignees

• Foshan Shunde Midea Electrical Heating Appliances Mfg Co Ltd

Inventors

• Mo Rongkang
• Yang Xingguo
• Gao Wanbao
• Mei Ruoyu

Classifications

• A47J27/08 Primary

  Pressure-cookers; Lids or locking devices specially adapted therefor · CPC title