초록 ▼

The stainless steel cooking utensil (10; 10A) with a capsular base having a stainless steel cap (20) and also at least one additional metal cap (24; 24, 28). At least one of the caps (20, 24; 20, 24, 28) is of a metal of high magnetic permeability, the one additional cap (24) being drawn over the tr

The stainless steel cooking utensil (10; 10A) with a capsular base having a stainless steel cap (20) and also at least one additional metal cap (24; 24, 28). At least one of the caps (20, 24; 20, 24, 28) is of a metal of high magnetic permeability, the one additional cap (24) being drawn over the traditional cap (20), each of the other additional caps (28) being drawn at least over that adjacent additional cap (24) closer to the traditional cap (20). The additional caps (24, 28) can be permanently fixed to each other and to the traditional cap (20).

대표청구항 ▼

1. A stainless steel cooking utensil comprising: a capsular base, the capsular base having a stainless steel cap (20) and at least one additional metal cap (24; 24, 28), at least one of the caps (20, 24; 20, 24, 28) being of a metal of high magnetic permeability, said one additional cap (24) bein

1. A stainless steel cooking utensil comprising: a capsular base, the capsular base having a stainless steel cap (20) and at least one additional metal cap (24; 24, 28), at least one of the caps (20, 24; 20, 24, 28) being of a metal of high magnetic permeability, said one additional cap (24) being drawn over a stainless steel cap (20), each of the other additional caps (28) being drawn at least over that adjacent additional cap (24) closer to the stainless steel cap (20), means (22; 22, 26) being provided to permanently fix the additional caps (24, 28) to each other and to the stainless steel cap (20). 2. A utensil as claimed in claim 1, wherein the most outer additional cap (24; 28) is of a metal of high magnetic permeability. 3. A utensil as claimed in claim 1, wherein the most outer additional cap (24; 28) is of a metal of high corrosion resistance. 4. A utensil as claimed in claim 1, wherein the additional cap (24) or the additional caps (24, 28) of high magnetic permeability are of a suitable stainless steel. 5. A utensil as claimed in claim 1, wherein a pressure heating procedure is used to form the capsular base but the caps are of a metal which does not in itself enable the caps to be permanently joined together by implementing that procedure, the means for connecting together the caps (20, 24; 20, 24, 28) consist of a layer (22; 22,26) of a metal interposed between two adjacent caps and having a melting point less than that of the metals of the relative caps. 6. A utensil as claimed in claim 1, wherein a brazing procedure is used to form the capsular base, the means for permanently connecting the caps together are the brazing material itself. 7. A utensil as claimed in claim 1, wherein at least one of the additional caps is formed from a preformed composite sheet consisting of several metal layers, of which at least one is of high magnetic permeability. 8. A utensil as claimed in claim 1, wherein the most outer additional cap (24; 28) presents through apertures. 9. A utensil as claimed in claim 1, wherein the pattern of the outer edge, if visible, of an individual cap (24, 20; 28, 24, 20) deviates from a circumference. 10. A utensil as claimed in claim 9, wherein the visible outer edge of a cap (24, 20; 28, 24, 20) has a regular or irregular undulated pattern. 11. A utensil as claimed in claim 1, wherein an additional cap completely covers all or part of the more inner caps. 12. A utensil as claimed in claim 1, wherein, the outer edge of all or part of the caps is visible, the plane tangential to the visible outer lateral surface of these caps is roughly the same. 13. A stainless steel cooking utensil comprising: a capsular base, the capsular base having a stainless steel cap (20) and at least one additional metal cap (24; 24, 28), at least one of the caps (20, 24; 20, 24, 28) being of a metal of high magnetic permeability, said one additional cap (24) being drawn over a stainless steel cap (20), each of the other additional caps (28) being drawn at least over that adjacent additional cap (24) closer to the stainless steel cap (20), means (22; 22,26) being provided to permanently fix the additional caps (24, 28) to each other and to the stainless steel cap (20); and wherein, the outer edge of all or part of the caps is visible, the plane tangential to the visible outer lateral surface of these caps is roughly the same.