[특허]Cooking vessel with multiply ringed bottom surface

Meyer Intellectual Properties Limited

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특허 상세정보

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Cooking vessel with multiply ringed bottom surface

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47J-027/00 A47J-036/00
미국특허분류(USC)	126/390.1; 126/375.1; 220/626; 220/573.1
출원번호	US-0883112 (2004-06-30)
발명자 / 주소	Cheng,Stanley Kin Sui Tarenga,Roberto
출원인 / 주소	Meyer Intellectual Properties Limited
인용정보	피인용 횟수 : 7 인용 특허 : 8

초록

A cooking vessel is formed with one or more annular rings rising above a laminate structure that exposes at least one more thermally conductive material of a contrasting color. The raised rings reveal the nature of the thermally conductive material, yet protect it from scratches and abrasion during use, such as when the cooking vessel is resting on a stove top.

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The invention claimed is: 1. A cooking vessel, comprising: a) a bottom portion with an interior cooking surface and an exterior portion having, i) one or more recessed annular rings or disks, each concentrically disposed about the central axis of the cooking vessel, ii) wherein the region between the recessed annular rings or disks defines a continuous horizontal reference plane for supporting the cooking vessel on planar horizontal surface, b) substantially vertical walls extending from and surrounding said bottom portion which terminate at a rim to form an inner cavity for containing fluids, c) a layer of thermally conductive material having a continuous planar surface on each side interposed between the interior cooking surface and the exterior portion of said bottom portion, wherein a region of the thermally conductive material is exposed coincident with at least one of the annular recessed rings or disks in the exterior portion of said bottom portion of the cooking vessel, d) whereby when the bottom portion of the cooking vessel rests on a horizontal supporting surface, the exposed portions of said thermally conductive material are precluded from contacting the horizontal supporting surface. 2. A cooking vessel according to claim 1 wherein said thermally conductive material and the exterior of said bottom portion have a contrasting appearance. 3. A cooking vessel according to claim 1 wherein said thermally conductive material and the exterior of said bottom portion have contrasting colors. 4. A cooking vessel according to claim 1 wherein said thermally conductive material comprises copper and said bottom portion comprises stainless steel. 5. A cooking vessel according to claim 1 wherein the bottom portion is circular. 6. A cooking vessel comprising: a) a substantially cylindrical fluid containing vessel with a bottom having a first diameter and substantially upright surrounding sides b) a thermally conductive material having a first side disposed in thermal communication with the bottom of said fluid containing vessel c) a supporting structure attached to the second side of the thermally conductive material, the supporting structure comprising; i) a central disk or ring disposed symmetrically about the central axis of said cylindrical fluid containing vessel, ii) one or more annular rings disposed symmetrically about the central disk or ring, each annular ring and the central ring or disk have substantially the same thickness, iii) wherein there is at least one annular gap between two or more of the annular rings and central ring or disk, iv) whereby the annular gap exposes said thermally conductive material between each ring or disk of said supporting structure such that said supporting structure protects said thermally conductive material, preventing contact with a substrate on which the supporting structure is disposed. 7. A cooking vessel according to claim 6 wherein said thermally conductive material is exposed to view between the rings of said supporting structure. 8. A cooking vessel according to claim 6 wherein said thermally conductive material comprises a copper layer. 9. A cooking vessel according to claim 8 further wherein the copper layer extends to the periphery of said bottom portion of the cooking vessel and extends upward around a least a lower external portion of said vertical wall surface. 10. A cooking vessel according to claim 9 wherein the portion of the copper layer that extends to the periphery of said bottom portion of the cooking vessel is visually contiguous with the portion that extends upward around a least a lower external portion of said vertical wall surface. 11. A cooking vessel according to claim 6 wherein the supporting structure is stainless steel. 12. A cooking vessel according to claim 11 further comprising at least one layer of aluminum interposed between the exposed thermally conductive material and the interior cooking surface. 13. A cooking vessel according to claim 12 wherein said thermally conductive material comprises copper. 14. A cooking vessel according to claim 12 wherein said thermally conductive material is an alloy of copper. 15. A method of forming a cooking vessel, the method comprising: a) providing a preformed internal body having a substantially circular bottom with an outer surface and an inner surface, the bottom surrounded by upward extending walls that terminate at a rim portion to form a fluid retaining cavity that includes the inner surface of the circular bottom, b) providing a lamination assembly including; i) a circular thermally conductive disk having a first continuous and substantially planar inner surface of the lamination assembly and a second continuous and substantially planar surface, ii) at least one annular protective plate having a first surface to form the outer surface of the lamination assembly and a continuous and substantially planar second surface to be disposed on the second surface of the thermally conductive disk, c) attaching the inner surface of the lamination assembly to the outer surface of the internal body wherein the second surface of the annular protective plate is attached to the second surface of the circular thermally conductive disk whereby portions of the second surface of the circular thermally conductive disk are covered by the annular protective plate and other portions of the circular thermally conductive disk within the annular opening are recessed above the outer surface of the lamination assembly whereby they are protected from making contact with a surface on which the completed cookware article is resting upon, d) wherein the first and second surface of the thermally conductive disks are substantially planar after said step of attaching the inner surface of the lamination assembly to the outer surface of the internal body. 16. The method of claim 15 further wherein said step of attaching the lamination assembly to the outer surface of the internal body further comprises; a) interposing an aluminum disk there between, b) impact bonding the lamination assembly, aluminum disk and internal body. 17. The method of claim 16 wherein said step of attaching the lamination assembly to the outer surface of the internal body further comprises; a) concentrically aligning the lamination assembly, aluminum disk and internal body, b) spot welding the concentrically aligned assembly of the lamination assembly, aluminum disk and internal body together at the center thereof prior to said step of impact bonding. 18. The method of claim 17 wherein said step of impact bonding further comprises deploying an upper forming die having a substantially complimentary contour as that presented by the first surface of the annular protective plate when concentrically aligned and disposed on the second surface of said thermally conductive disk. 19. The method of claim 16 wherein said step of impact bonding extrudes at least a portion of the aluminum layer into a vertically extending cavity formed between the periphery of the circular bottom of the preformed internal body and the adjacent portion of the thermally conductive disk. 20. The method of claim 19 wherein the thermally conductive disks extend to the periphery of the bottom of the preformed internal body and extends upward around a least a lower external portion thereof so as to be visible from the outside of the cooking vessel. 21. A method of forming a cooking vessel, according to claim 15 wherein the protective plate is comprised of stainless steel and the thermally conductive disk is comprised of copper. 22. A method of forming a cooking vessel, the method comprising: a) providing a preformed internal body having a substantially circular bottom with an outer surface and an inner surface, the bottom surrounded by upward extending walls that terminate at a rim portion to form a fluid retaining cavity that includes the inner surface of the circular bottom, b) providing a lamination assembly including; i) a circular thermally conductive disk having a first continuous and substantially planar inner surface of the lamination assembly and a second surface that consists of a first portion, and the remainder of the second surface being the second portion, ii) at least one annular protective plate having a first surface to form the outer surface of the lamination assembly and a continuous and substantially planar second surface to be disposed on the first portion of the second surface of the thermally conductive disk, c) attaching the inner surface of the lamination assembly to the outer surface of the internal body wherein; i) whereby the first portion of the second surface of the circular thermally conductive disk is attached to and covered by the annular protective plate, and ii) the second portion of the thermally conductive disk is recessed above the outer surface of the lamination assembly and thereby protected from making contact with a surface on which the completed cookware article is resting upon.

이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 7

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Cooking vessel with multiply ringed bottom surface

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Cooking vessel with multiply ringed bottom surface

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이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 7

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