WO2006038237A1 - Manufacturing method of a container as a pot, a pan or the like, and container so manufactured - Google Patents

Manufacturing method of a container as a pot, a pan or the like, and container so manufactured Download PDF

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Publication number
WO2006038237A1
WO2006038237A1 PCT/IT2004/000561 IT2004000561W WO2006038237A1 WO 2006038237 A1 WO2006038237 A1 WO 2006038237A1 IT 2004000561 W IT2004000561 W IT 2004000561W WO 2006038237 A1 WO2006038237 A1 WO 2006038237A1
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WO
WIPO (PCT)
Prior art keywords
container
layer
container according
plate
aluminium
Prior art date
Application number
PCT/IT2004/000561
Other languages
French (fr)
Inventor
Fabrizio Coppi
Original Assignee
Bialetti Industrie S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bialetti Industrie S.P.A. filed Critical Bialetti Industrie S.P.A.
Priority to PCT/IT2004/000561 priority Critical patent/WO2006038237A1/en
Priority to EP04791895A priority patent/EP1802456A1/en
Publication of WO2006038237A1 publication Critical patent/WO2006038237A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/44—Number of layers variable across the laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/06—Coating on the layer surface on metal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/208—Magnetic, paramagnetic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/302—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/746—Slipping, anti-blocking, low friction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/02—Open containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2509/00—Household appliances

Abstract

A method for manufacturing a pot, a pan and the like comprises the steps of realising a aluminium - steel - aluminium multilayer plate, subjecting the plate to a pressing process for obtaining the saucepan (1) wherein the bottom (2) exhibits a surplus layer (30) made of aluminium, and removing said surplus layer (30) from the bottom (2) or realising it with suitable thickness for being effectively crossed by a magnetic field , for example up to thirty microns .

Description

"Manufacturing method of a container as a pot, a pan or the like, and container so manufactured"
[0001] . It is an object of the present invention a method for manufacturing a container such as a pot, a pan and the like. In addition, it is an object of the present invention a container manufactured according to said method.
[0002] . It is known that induction cooking plates - i.e. cooking plates capable of heating a saucepan by currents induced by a magnetic field - are increasingly used by consumers.
[0003] . For requirements related to the high pressing workability of aluminium, and to its corrosion resistance, saucepans that can be used on induction cooking plates generally comprise an aluminium container, on the bottom of which a steel plate is subsequently applied adapted for heating by the magnetic field action. [0004] . However, saucepans manufactured according to the above exhibit some disadvantages.
[0005] . Among the other disadvantages, such saucepans exhibit poor performance in the transformation of the energy produced by the magnetic field into useful heat, that is, into heat transmitted, for example, to the water into the container.
[0006] . Exhibiting the disadvantages mentioned above, also the saixcepan realised according to what described in document GB1451229 is not adapted for an effective use in conjunction with induction plates.
[0007] . It is an object of the present invention providing a method for manufacturing a container for cooking food., for example a saucepan, a frying pan and the like, especially adapted for being used in conjunction with induction plates, overcoming the disadvantages mentioned with reference to the prior art.
[0008] . Such object is achieved by a manufacturing method according to claim 1. The dependent claims describe embodiment variants. Moreover, such object is achieved by a container for cooking food according to claim 17. The dependent claims describe embodiment variants.
[ 0009] . The f eatures and advantages of method and of the container according to the present invention will appear clearly from the following description, made with reference to the enclosed f igures , wherein : [ 0010 ] . - f igure 1 is a sectioned side view of a container according to the present invention ; [0011] . - f igure 2 is a sectioned side view of a container obtainable during the manufacturing method according to the present invention; and [0012] - ficyure 3 shows a section diagram of a multilayer plate. [0013] . Accordirxg to the attached figur-es, reference numeral 1 globally indicates a containear for cooking food, such as a pot, a pan and the like.
[0014] . Container 1 comprises a bottom 2 adapted for resting on a cooking plate. [0015] . Said bottom 2 comprises an inner layer 4 made of a first material, preferably non-ferromagnetic, for example aluminium or aluminium alloy, and an outer layer 6 made of a ferromagnetic material, for example steel . [0016] . Moreover, container 1 comprises a side wall 8, jointed to said bottom 2 adapted for containing said food.
[0017] . The side wall 8 comprises an inner layer 10, made of said first non- ferromagnetic material, and an intermediate layer 12 made of said ferromagnetic material .
[0018] . Moreover:, the side wall 8 comprises an outer layer 14 made of a second material, preferably non- ferromagnetic, for example the same as said first non- ferromagnetic material, for example aluminium or aluminium alloy .
[ 0019] . According to a preferred embodiment , container
1 exhibits at least one coated portion .
[ 0020] . According to a further preferred embodiment , container 1 exhibits at least one portion comprising at least one non- sticking material layer , for example
PTFE .
[0021] . Container 1 can be manufactured according to a manufacturing method, comprising a step of realising a multilayer plate 16 comprising an upper layer 18 made of a first material, an intermediate layer 20 made of ferromagnetic material and a lower layer 22 made of a second material.
[0022] . According to a preferred variant of embodiment of the manufacturing method, the step of realising the multilayer plate comprises the step of associating the uppex- surface and the lower surface of a sheet made of ferromagnetic material, which realises said intermediate layer 20 of the plate, to a sheet made of a first non—ferromagnetic material and a sheet made of a second non-ferromagnetic material, respectively, which "will realise said upper layer and said lower layer of the plate.
[0023] . According to a preferred embodiment of the manufacturing method, said step of association comprises the step of hot-rolling said sheet made of ferromagneti c; material and said sheets made of non- ferromagneti c materials .
[0024] . Preferably, said hot -rolling step is carried out for the two non-ferromag-netic sheets at the same time .
[0025] . Moreover, said manuf acturing method comprises the step of subj ecting said multilayer plate 16 to a. pressing process for obtaining said multilayeir container 1 .
[0026] . Container 1 thus manufactured comprises bottom 2 and the side wall 8 .
[0027] . In particular , the lower layer 22 of plate 16 realises a surplus layer 30 of bottom 2 and the out ear layer 14 of the side wall 8 . The intermediate layer 2 O of plate 16 realises the outer" layer 6 of bottom 2 and. the intermediate layer 12 of the side wall 8 . The upper layer 18 of plate 16 realises the inner layer 4 of bottom 2 and the inner layer 10 of the side wall 8 . [0028] . According to a preferred embodiment of the manufacturing method, the step of subj ecting the multilayer plate 16 to a pres sing process comprises the step of hot- and cold- compres sing said plate between a. die and a dolly. [0029] . Moreover, said manufacturing method comprises a. step of removing said surplus layer 30 from the bottom 2 of container 1 for exposing the outer layer 6 of bottom 2 .
[0030] . According to a preferred embodiment of the manufacturing method, said step of removal comprises the step of tool -processing said containezt-r , for example by milling, turning or grinding .
[ 0031] . Preferably, moreover, said marxufacturing method comprises a step of partly coating said container 1 . Said coating step is preferably carir ied out prior to said removal step .
[ 0032] . Innovatively, the container according to the present invention is especially adapted to be used in conjunction with induction plates , while keeping excellent corrosion resistance a.nd coatability characteristics .
[ 0033 ] . In particular , even though, said container exhibits the inner surface made off aluminium, and therefore especially smooth and f ree f rom carvings , cracks and micro-damages , it en sures excellent inside heat distribution .
[0034] . In fact , the ferromagnetic material develops along the entire side wall , thus allowing the magnetic field generated by the plates to originate induced currents and therefore heat production, also at the side walls .
[0035] . Moreover, the container exhibits the advantage of a direct contact between the induction plate anci the ferromagnetic material of the bottom, thereby impl_ying high performance in the energy transformation of the magnetic field into useful heat to be transmitted to the food inside the container.
[0036] . According to an even further advantageous aspect, on its side outer wall the container exhibits an aluminium layer, excellent for coating and adapted for obtaining very good surface finishes .
[0037] . Advantageously, moreover, the method for manufacturing the container allows realising a much low-cost production, also from the point of vie^v of investments for setting up the production line.
[0038] . Compared to the production line off an aluminium container, in fact, such method aLlows making no changes, that is, not interfering wiizh a production line of conventional aluminium saucepans, except in that it provides, as final step, for the removal of the surplus layer from the container bottom.
[0039] . It is clear that a man skilled in the art, in order to meet specific requirements, will be abLe to make several changes and variants to the containeir and to the method according to the present invention. [0040] . According to an embodiment variant, said non- ferromagnetic material is selected from the group comprising copper, tin or other non-ferrous material. [0041] . According to an embodiment variant, a coining or- forging is carried out at the same time as pressing to impress a decorative pattern.
[0042] . According to an embodiment variant of thet method, said step of coating is carried out prior to the step of subjecting the plate to a pressing process.
[0043] . According to a further embodiment variant, said method and said container caix respectively be realised and manufactured with a plates wherein the non-ferromagnetic material-ferromagnetic; material-non-ferromagnetic material sequence is repeated! several times.
[0044] . According to an even further embodiment variant, container 1 comprises a bottom 2, comprising an inner- layer 4 made of a first material, an intermediate layer made of a ferromagnetic material and an outerr layer 14 made of a second material.
[0045] . Moreover, container 1 comprises a side wall 8, jointed to said bottom 2 adapted for containing saicl food. [0046] . Said bottom outer layer is adapted for being- crossed by a magnetic field for impinging the intermediate layer made of ferromagnetic material, so as to cook food.
[0047] . In particular, said outer layer has a thickness up to eighty micron (=0.08mm) , preferably up to sixty micron (=0.06mm), preferably up to forty micron
(=0.04mm), preferably up to thirty micron (=0.03mm).
[0048] . According to a preferred embodiment, said outer layer of the bottom is realised by impingement in a fused bath.
[0049] . Also these variants are to be regarded as falling within the protection scope as defined in the following claims.

Claims

1. Method for manufacturing a container (1) for cooking food, such as a pot, a pan and the like, comprising the steps of: - realising a multilayer plate (16) comprising an upper layer (18) made of a first material, an intermediate layer (20) made of a ferromagnetic material and a lower layer (22) made of a second material;
- subjecting said multilayer plate (16) to a pressing process for obtaining said multilayer container (1) having a bottαn (2) and a side wall (8) for containing said food, wherein said lower layer (22) of the plate (16) realises a surplus layer (30) of the bottom (2) and an outer layer (14) of the side wall (8) of the container (1) ;
- removing said surplus layer (30) realised with said second material from the bottom (2) of container (1) for exposing an outer layer (6) of bottom (2)
2. Method according to claim 1, wherein said step of realising the multilayer plate comprises the step of associating the upper surface and the lower surface of a sheet made of ferromagnetic material to a sheet made of a first material and a sheet made of a second material, respectively.
3. Method according to claim 2, wherein said association step comprises the step of hot-rolling said sheets.
4. Method according to claim 3, wherein said hot-rolling step is carried out concurrently for the sheets.
5. Method according to any one of the previous claims, wherein said step of subjecting the multilayer plate to a pressing process comprises the step of compressing said plate between a die and a dolly.
6. Method according to claim 5, wherein at the same time as said step of subjecting the plate to a pressing process, a coining or forging step is carried out for impressing a decorative pattern.
7. Method according to claim 5 or 6, wherein said compression step is carried out in cold conditions, that is, without administering heat to the plate.
8. Method according to claim 5 or 6, wherein said compression step is carried out in hot conditions, that is, administering heat to the plate.
9. Method according to any, one of the previous claims, wherein said removal step comprises the step of tool- processing the surplus layer (30) of the bottom (2) .
10. Method according to claim 9, wherein said tool- processing step comprises the step of milling the surplus layer (30) of the bottom (2) .
11. Method according to claim 9, wherein said tool- processing step comprises the step of turning the surplus layer (30) of the bottom (2) .
12. Method according to claim 9, wherein said tool- processing step comprises the step of grinding the surplus layer (30) of the bottom (2) .
13. Method according to any one of the previous claims, further comprising a step of coating, at least partly, said container.
14. Method according to claim 13, wherein said coating step is carried out prior to said removal step.
15. Method according to claim 13, wherein said coating step is carried out prior to said step of subjecting said plate (16) to a pressing process.
16. Method according to any one of the previous claims, wherein said first material is a non-ferromagnetic material.
17. Method according to claim 16, wherein said first material is a metallic material.
18. Method according to claim 17, wherein said first material is selected between aluminium, aluminium alloys, copper, tin.
19. Method according to any one of the previous claims, wherein said ferromagnetic material is steel.
20. Method according to any one of the previous claims, wherein said second material is a non-ferromagnetic material .
21. Method according to claim 20, wherein said second material is a metallic material.
22. Method according to claim 21, wherein said second material is selected between aluminium, aluminium alloys, copper, tin.
23. Container (1) for cooking food, realised by the method according to any one of the previous claims.
24. Container (1) for cooking food, such as a saucepan, a frying pan and the like, comprising:
- a bottom (2) adapted for resting on a cooking plate, comprising an inner layer (4) made of a first material and an outer layer (6) made of a ferromagnetic material; - a side wall (8) , jointed to said bottom (2) , adapted for containing said food, comprising an inner layer (10) , made of said first material and an inner layer (12) made of said ferromagnetic material; wherein said side wall (8) further comprises an outer layer (14) realised with a second material, for coating said intermediate layer.
25. Container according to claim 24, wherein said first material is a non-ferromagnetic material.
26. Container according to claim 25, wherein said first material is a metallic material.
27. Container according to claim 26, wherein said first material is selected between aluminium, aluminium alloys, copper, tin.
28. Container according to any one of claims from 24 to 27, wherein said second material is a non- ferromagnetic material.
29. Container according to claim 28, wherein second first material is a metallic material.
30. Container according to claim 29, wherein second first material is selected between aluminium, aluminium alloys, copper, tin.
31. Container according to any one of claims from 24 to 30, wherein said ferromagnetic material is steel.
32. Container according to any one of claims from 24 to 31, wherein said container exhibits at least one coated or ground or polished portion.
33. Container according to any one of claims from 24 to 32, wherein said comprises at least one portion comprising a non-sticking coating.
34. Container (1) for cooking food, such as a saucepan, a frying pan and the like, comprising:
- a bottom (2) adapted for resting on a cooking plate, comprising an inner layer (4) made of a first material, an intermediate layer made of a ferromagnetic material and an outer layer (14) made of a second material;
- a side wall (8) , jointed to said bottom (2) adapted for containing said food; said container being characterised in that said bottom outer layer is adapted for being crossed by a magnetic field for impinging the intermediate layer made of ferromagnetic material, so as to cook food.
35. Container according to claim 34, wherein said outer layer has a thickness of up to eighty microns (=0.08mm) .
36. Container according to claim 35, wherein said outer layer has a thickness of up to sixty microns (=0,06mm) .
37. Container according to claim 36, wherein said outer layer has a thickness of up to forty microns (=0,04mm) .
38. Container according to claim 37, wherein said outer layer has a thickness of up to thirty microns (=0.03mm) .
39. Container according to any one of claims from 34 to 38, wherein said bottom outer layer is realised by impingement in a fused bath.
40. Container according to any one of claims from 34 to 39, wherein said first material is a non- ferromagnetic material.
41. Container according to claim 40, wherein said first material is a metallic material.
42. Container according to claim 41, wherein said first material is selected between aluminium, aluminium alloys, copper, tin.
43. Container according to any one of claims from 34 to 42, wherein said second material is a non- ferromagnetic material.
44. Container according to claim 43, wherein second first material is a metallic material.
45. Container according to claim 44, wherein second first material is selected between aluminium, aluminium alloys, copper, tin.
46. Container according to any one of claims from 34 to 45, wherein said side wall (8) comprises an inner layer made of said first material, an intermediate layer and an outer layer (14) made of said second material, for coating said intermediate layer.
PCT/IT2004/000561 2004-10-08 2004-10-08 Manufacturing method of a container as a pot, a pan or the like, and container so manufactured WO2006038237A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IT2004/000561 WO2006038237A1 (en) 2004-10-08 2004-10-08 Manufacturing method of a container as a pot, a pan or the like, and container so manufactured
EP04791895A EP1802456A1 (en) 2004-10-08 2004-10-08 Manufacturing method of a container as a pot, a pan or the like, and container so manufactured

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2004/000561 WO2006038237A1 (en) 2004-10-08 2004-10-08 Manufacturing method of a container as a pot, a pan or the like, and container so manufactured

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Publication Number Publication Date
WO2006038237A1 true WO2006038237A1 (en) 2006-04-13

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451229A (en) * 1973-01-24 1976-09-29 Racz N S Cooking utensil of laminate form
US4564001A (en) * 1983-06-20 1986-01-14 The Nippon Aluminium Mfg. Co., Ltd. Vessel for use with high-frequency induction heater
US4596236A (en) * 1982-12-14 1986-06-24 Ardal Og Sunndal Verk A.S. Stainless steel cooking vessel suitable for all types of heat sources
US5952112A (en) * 1994-03-18 1999-09-14 Clad Lizenz Ag Multilayer, cold deformable composite metal article capable of being deep drawn
US6214401B1 (en) * 1998-12-01 2001-04-10 Imphy Ugine Precision Cooking vessel for induction heating and alloy and method for producing such a vessel
WO2003045208A1 (en) * 2001-11-30 2003-06-05 Imphy Alloys Cooking vessel comprising a base made of a multilayer material and a side wall, and article of multilayer material
US20040058188A1 (en) * 2002-06-28 2004-03-25 Groll William A. Bonded metal components having uniform thermal conductivity characteristics and method of making same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451229A (en) * 1973-01-24 1976-09-29 Racz N S Cooking utensil of laminate form
US4596236A (en) * 1982-12-14 1986-06-24 Ardal Og Sunndal Verk A.S. Stainless steel cooking vessel suitable for all types of heat sources
US4564001A (en) * 1983-06-20 1986-01-14 The Nippon Aluminium Mfg. Co., Ltd. Vessel for use with high-frequency induction heater
US5952112A (en) * 1994-03-18 1999-09-14 Clad Lizenz Ag Multilayer, cold deformable composite metal article capable of being deep drawn
US6214401B1 (en) * 1998-12-01 2001-04-10 Imphy Ugine Precision Cooking vessel for induction heating and alloy and method for producing such a vessel
WO2003045208A1 (en) * 2001-11-30 2003-06-05 Imphy Alloys Cooking vessel comprising a base made of a multilayer material and a side wall, and article of multilayer material
US20040058188A1 (en) * 2002-06-28 2004-03-25 Groll William A. Bonded metal components having uniform thermal conductivity characteristics and method of making same

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