초록 ▼

A thermally insulated cooking pot consists of an outer pot and an inner pot. The inner pot is suspended within the outer pot by hanging from the top inner circumferential area of the outer pot with its own top outer circumferential area. The space between the inner and outer pots becomes an insulati

A thermally insulated cooking pot consists of an outer pot and an inner pot. The inner pot is suspended within the outer pot by hanging from the top inner circumferential area of the outer pot with its own top outer circumferential area. The space between the inner and outer pots becomes an insulation cavity. The contact point between the two pots is sealed by a pliable packing ring with an L-shaped cross-section, thereby sealing the insulation cavity. This sealed insulation cavity provides excellent thermal insulation. The packing ring contains a plurality of protrusions on the surface that come into contact with the inner pot to prevent the packing ring from sticking to the inner pot. The gap formed between the packing ring protrusions and the inner pot prevents the inner pot from sticking to the packing ring.

대표청구항 ▼

What is claimed is: 1. A cooking apparatus, comprising: an outer pot having a wall and a base, said outer pot having a top inner circumferential area; an inner pot having a wall and a base, said inner pot having a top outer circumferential area, said inner pot's circumferential area, or step, is h

What is claimed is: 1. A cooking apparatus, comprising: an outer pot having a wall and a base, said outer pot having a top inner circumferential area; an inner pot having a wall and a base, said inner pot having a top outer circumferential area, said inner pot's circumferential area, or step, is hanging onto said outer pot's top inner circumferential area, thereby forming a single unit; said inner pot is in a state of suspension in the outer pot; a removable packing ring made of pliable material is positioned between contact areas of said inner pot and said outer pot; and a heat insulating cavity is formed between said inner pot and said outer pot, whereby said packing ring seals said heat insulating cavity by preventing exterior air from flowing in and out of said heating insulating cavity. 2. The cooking apparatus as defined in claim 1, wherein said inner pot hangs from a step area of said outer pot, making contact with protrusions on said packing ring, not with the complete upper surface of said packing ring. 3. The cooking apparatus as defined in claim 2, wherein a plurality of protrusions arranged on said packing ring creates a gap between said protrusions, whereby said inner pot is prevented from sticking to said packing ring. 4. The cooking apparatus as defined in claim 3, wherein said packing ring having its cross section L-shaped is positioned over an upper part, a corner, and a bottom part of the top inner circumferential area of said outer pot. 5. The cooking apparatus as defined in claim 4, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 6. The cooking apparatus as defined in claim 3, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 7. The cooking apparatus as defined in claim 2, wherein said packing ring having its cross section L-shaped is positioned over an upper part, a corner, and a bottom part of the top inner circumferential area of said outer pot. 8. The cooking apparatus as defined in claim 7, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 9. The cooking apparatus as defined in claim 2, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 10. The cooking apparatus as defined in claim 1, wherein said packing ring having its cross section L-shaped is positioned over an upper part, a corner, and a bottom part of the top inner circumferential area of said outer pot. 11. The cooking apparatus as defined in claim 10, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 12. The cooking apparatus as defined in claim 1, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 13. A cooking apparatus, comprising: an outer pot having a wall and a base, said outer pot having a top inner circumferential area; an inner pot having a wall and a base, said inner pot having a top outer circumferential area, said inner pot's circumferential area, or step, is hanging from a step area of said outer pot's top inner circumferential area, thereby forming a single unit; said step areas makes contact with protrusions on said packing ring, not with the complete upper surface of said packing ring, said inner pot is in a state of suspension in the outer pot; a removable packing ring made of pliable material is positioned between contact areas of said inner pot and said outer pot; and a heat insulating cavity is formed between said inner pot and said outer pot, whereby said packing ring seals said heat insulating cavity by preventing exterior air from flowing in and out of said heating insulating cavity. 14. The cooking apparatus as defined in claim 13, wherein a plurality of protrusions arranged on said packing ring creates a gap between said protrusions, whereby said inner pot is prevented from sticking to said packing ring. 15. The cooking apparatus as defined in claim 14, wherein said packing ring having its cross section L-shaped is positioned over an upper part, a corner, and a bottom part of the top inner circumferential area of said outer pot. 16. The cooking apparatus as defined in claim 15, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 17. The cooking apparatus as defined in claim 14, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 18. The cooking apparatus as defined in claim 13, wherein said packing ring having its cross section L-shaped is positioned over an upper part, a corner, and a bottom part of the top inner circumferential area of said outer pot. 19. The cooking apparatus as defined in claim 18, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 20. The cooking apparatus as defined in claim 13, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 21. The cooking apparatus as defined in claim 13, wherein said packing ring having its cross section L-shaped is positioned over an upper part, a corner, and a bottom part of the top inner circumferential area of said outer pot. 22. The cooking apparatus as defined in claim 21, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions. 23. The cooking apparatus as defined in claim 13, wherein said packing ring further comprises a metal core covered by pliable material except at the top and arranged with a plurality of protrusions.