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1. WO2011056742 - SURFACES D'APPAREILS DE CUISSON AYANT UNE CONFIGURATION PERMETTANT LA RETENUE DES DÉBORDEMENTS ET PROCÉDÉS DE FABRICATION DE CES SURFACES

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

We Claim:

1. A cooking appliance having a spill containment pattern, comprising:

a cooking appliance surface having a top surface, the top surface comprising a non-hydrophobic region;

at least one heating element disposed on or adjacent to the cooking appliance surface; and

a spill containment pattern comprising a hydrophobic pattern disposed on the top surface and bounding at least a portion of the non-hydrophobic region, the bounded non-hydrophobic region defining a non-hydrophobic spill containment region.

2. The cooking appliance of claim 1 , wherein the hydrophobic pattern comprises a hydrophobic compound suitable for use on a surface having temperatures in a range of ambient temperature to about 500°C.

3. The cooking appliance of claim 2, wherein the hydrophobic compound is chosen from the group consisting of an organic polymer, an inorganic polymer, a

fluorocarbon, an olefin, a nanomaterial, a nanomaterial-organic polymer blend, a ceramic, and combinations thereof.

4. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern comprises a hydrophobic compound suitable for use with liquids having a temperature in a range of ambient temperature to about 210°C.

5. The cooking appliance of claim 4, wherein the hydrophobic compound is chosen from the group consisting of an organic polymer, an inorganic polymer, a

fluorocarbon, an olefin, a nanomaterial, a nanomaterial-organic polymer blend, a ceramic, and combinations thereof.

6. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern is a continuous border which defines a single non-hydrophobic spill containment central region within said border.

7. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern is a continuous border located near the perimeter of the top surface.

8. The cooking appliance of any one of the preceding claims, wherein a portion of the hydrophobic pattern is positioned adjacent to the at least one heating element.

9. The cooking appliance of any one of the preceding claims, wherein a portion of the hydrophobic pattern surrounds the at least one heating element.

10. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern is in the form of a grid pattern, and wherein the grid pattern bounds a plurality of non-hydrophobic spill containment regions.

11. The cooking appliance of claim 10, wherein the hydrophobic pattern includes a portion disposed one of adjacent to or surrounding the at least one heating element.

12. The cooking appliance of any one of the preceding claims, wherein the top surface of the cooking appliance surface is formed of a material selected from the group consisting of glass, ceramic, metal, composites, and combinations thereof.

13. The cooking appliance of any one of the preceding claims, wherein the spill containment pattern is transparent.

14. The cooking appliance of any one of the preceding claims, wherein at least a portion of the spill containment pattern is colored.

15. The cooking appliance of any one of the preceding claims, wherein the top surface comprises a roughened area and the hydrophobic pattern is disposed on the roughened area.

16. The cooking appliance of claim 15, wherein the roughened area is formed by etching or abrading the top surface.

17. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern comprises a frit disposed on and bonded to the top surface and a hydrophobic compound disposed on the frit.

18. The cooking appliance of claim 17, wherein the frit is a ceramic frit, a porcelain frit, or a combination thereof.

19. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern comprises hydrophobic particles.

20. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern has a thickness in the range of approximately 0.001 microns to approximately 250 microns.

21. The cooking appliance of any one of the preceding claims, wherein the hydrophobic pattern comprises a hydrophobic compound comprising a variety of molecular chain lengths to create a coating with surface irregularities.

22. The cooking appliance of any one of the preceding claims, wherein the cooking appliance surface is selected from the group consisting of at least a portion of an oven interior, a cooktop cooking surface, and a stovetop cooking surface.

23. The cooking appliance of claim 22, wherein the cooking appliance surface is cook top surface, and the at least one heating element is a cooktop burner element.

24. The cooking appliance of claim 22, wherein the cooking appliance surface is stovetop surface, and the at least on heating element is a stove burner element.

25. The cooking appliance of claim 22, wherein the cooking appliance surface is bottom wall of an oven interior, and the at least one heating element is an oven heating element.

26. The cooking appliance of claim 25, wherein the remaining walls of the oven interior are completely coated with a hydrophobic material.

27. The cooking appliance of any one of the preceding claims, wherein the top surface is substantially flat.

28. The cooking appliance of any one of the preceding claims, comprising a plurality of heating elements.

29. The cooking appliance of claim 28, wherein hydrophobic pattern comprises portions surrounding each of the plurality of heating elements.

30. The cooking appliance of any one of claims 28 to 29, wherein the hydrophobic pattern is a grid pattern and each section of the grid pattern comprises at least one heating element.

31. The cooking appliance of any one of the preceding claims, further comprising a control unit disposed on the cooking appliance surface, wherein a portion of the

hydrophobic pattern is disposed adjacent to the control unit and is arranged to repel spilled liquids away from the control unit.

32. A cooking appliance surface having a spill containment pattern, comprising: a top surface, wherein at least a portion of the top surface is adapted to be heated by a heating element, and at least a portion of the top surface is non-hydrophobic; and a spill containment pattern disposed on the top surface, the spill containment pattern comprising a hydrophobic pattern bounding at least a portion of the non-hydrophobic region, the bounded non-hydrophobic region defining a non-hydrophobic spill containment region.

33. The cooking appliance surface of claim 32, wherein the hydrophobic pattern comprises a hydrophobic compound suitable for use on a surface having temperatures in a range of ambient temperature to about 500°C.

34. The cooking appliance surface of claim 33, wherein the hydrophobic compound is chosen from the group consisting of organic polymers, inorganic polymers, fluorocarbons, olefins, nanomaterials, nanomaterial-organic polymer blends, ceramics, and combinations thereof.

35. The cooking appliance surface of any one of claims 32 to 34, wherein the hydrophobic pattern comprises a hydrophobic compound suitable for use with liquids having a temperature in a range of ambient temperature to about 210°C.

36. The cooking appliance surface 35, wherein the hydrophobic compound is chosen from the group consisting of organic polymers, inorganic polymers, fluorocarbons, olefins, nanomaterials, nanomaterial-organic polymer blends, ceramics, and combinations thereof.

37. The cooking appliance surface of any of claims 32 to 36, wherein the hydrophobic pattern is a continuous border which defines a single non-hydrophobic spill containment central region within said border.

38. The cooking appliance surface of claim 37, wherein the hydrophobic pattern is a continuous border located near the perimeter of the top surface.

39. The cooking appliance surface of any one of claims 32 to 38, wherein a portion of the hydrophobic pattern is positioned adjacent the portion of the cooking appliance surface adapted to be heated by the heating element.

40. The cooking appliance surface of any one of claims 32 to 39, wherein a portion of the hydrophobic pattern surrounds the portion of the cooking appliance surface adapted to be heated by the heating element.

41. The cooking appliance surface of any one of claims 32 to 40, wherein the hydrophobic pattern is in the form of a grid pattern, and wherein the grid pattern bounds a plurality of non-hydrophobic spill containment regions.

42. The cooking appliance surface of claim 41, wherein the hydrophobic pattern includes a portion disposed one of adjacent to or surrounding the portion of the cooking appliance surface adapted to be heated by the heating element.

43. The cooking appliance of any one of claims 32 to 42, wherein the top surface is formed of a material selected from the group consisting of glass, ceramic, metal, composites, and combinations thereof.

44. The cooking appliance surface of any one of claims 32 to 43, wherein the spill containment pattern is transparent.

45. The cooking appliance surface of any one of claims 32 to 44, wherein at least a portion of the spill containment pattern is colored.

46. The cooking appliance surface of any one of claims 32 to 45, wherein the top surface comprises a roughened area and the hydrophobic pattern is disposed on the roughened area.

47. The cooking appliance surface of claim 46, wherein the roughened area is formed by etching or abrading the top surface.

48. The cooking appliance surface of any one of claims 32 to 47, wherein the hydrophobic pattern comprises a frit disposed on and bonded to the top surface and a hydrophobic compound disposed on the frit.

49. The cooking appliance surface of claim 48, wherein the frit is a ceramic frit, a porcelain frit, or a combination thereof.

50. The cooking appliance surface of any one of claims 32 to 49, wherein the hydrophobic pattern comprises hydrophobic particles.

51. The cooking appliance surface of any one claims 32 to 50, wherein the hydrophobic pattern has a thickness in the range of approximately 0.001 microns to approximately 250 microns.

52. The cooking appliance surface of any one of claims 32 to 51 , wherein the hydrophobic pattern comprises a hydrophobic compound comprising a variety of molecular chain lengths to create a coating with surface irregularities.

53. The cooking appliance surface of any one of claims 32 to 52, wherein the cooking appliance surface is selected from the group consisting of oven walls, a cooktop cooking surface, and a stovetop cooking surface.

54. The cooking appliance surface of claim 53, wherein the cooking appliance surface is a bottom wall of an oven interior, and the at least one heating element is an oven heating element.

55. The cooking appliance surface of claim 54, wherein the remaining walls of the oven interior are completely coated with a hydrophobic material.

56. The cooking appliance surface of any one of claims 32 to 55, wherein hydrophobic pattern is disposed in substantially the same plane as the top surface.

57. The cooking appliance surface of any one of claims 32 to 56, wherein the top surface is substantially flat.

58. The cooking appliance surface of any one of claims 32 to 57, wherein the cooking appliance surface comprises a plurality of regions adapted to be heated by a plurality of heating elements.

59. The cooking appliance surface of claim 58, wherein hydrophobic pattern comprises portions surrounding each of the plurality of regions adapted to be heated by the plurality of heating elements.

60. The cooking appliance surface of any one of claims 58 to 59, wherein the hydrophobic pattern is a grid pattern and each section of the grid pattern comprises at least one heating element.

61. The cooking appliance surface of any one of claims 32 to 60, further comprising a control unit disposed on the cooking appliance surface, wherein a portion of the hydrophobic pattern is disposed adjacent to the control unit and is arranged to repel spilled liquids away from the control unit.

62. The cooking appliance surface of claim 61, wherein a portion of the hydrophobic pattern surrounds the control unit.

63. A method of manufacturing a cooking appliance surface capable of containing spills thereon comprising:

providing a cooking appliance surface comprising a top surface having a non-hydrophobic region, wherein at least a portion of the cooking appliance surface is adapted to be heated by at least one heating element; and

forming a hydrophobic pattern on the top surface, the hydrophobic pattern arranged to bound at least a portion of the non-hydrophobic region, the bounded non-hydrophobic region defining a non-hydrophobic spill containment region.

64. The method of claim 63, wherein the hydrophobic pattern comprises a hydrophobic compound suitable for use on a surface having temperatures in a range of ambient temperature to about 500°C.

65. The method of claim 64, wherein the hydrophobic compound is chosen from the group consisting of organic polymers, inorganic polymers, fluorocarbons, olefins, nanomaterials, nanomaterial-organic polymer blends, ceramics, and combinations thereof.

66. The method of any one of claims 64 to 65, wherein the hydrophobic pattern comprises a hydrophobic compound suitable for use with liquids having a temperature in a range of ambient temperature to about 210°C.

67. The method of claim 66, wherein the hydrophobic compound is chosen from the group consisting of organic polymers, inorganic polymers, fluorocarbons, olefins, nanomaterials, nanomaterial-organic polymer blends, ceramics, and combinations thereof.

68. The method of any one of claims 63 to 67, wherein applying a hydrophobic pattern comprises:

applying a frit to the top surface, the frit arranged in pattern of the hydrophobic pattern;

curing the frit to couple the frit to the top surface;

applying a hydrophobic compound to the cured frit; and

curing the hydrophobic compound.

69. The cooking appliance surface of claim 68, wherein the frit is a ceramic frit, a porcelain frit, or a combination thereof.

70. The method of claim 68 or 60, wherein curing the frit comprises heating the frit to a temperature in a range of about 1000°F to about 1400°F.

71. The method of any one of claim 68 to 70, wherein curing the hydrophobic compound comprises heating the hydrophobic compound to a temperature in a range of about 100°F to about 600°F.

72. The method of any one of claim 68 to 70, wherein curing the hydrophobic compound comprises exposing the hydrophobic compound to ambient temperature.

73. The method of any one of claims 63 to 72, wherein applying the hydrophobic pattern comprises applying a hydrophobic solution comprising the hydrophobic compound dispersed or dissolved in a solvent.

74. The method of any one of claims 63 to 73, further comprising etching at least a portion of the top surface with an etching solution prior to applying the hydrophobic pattern.

75. The method of claim 74, comprising etching the entire top surface.

76. The method of any one of claims 63 to 75, wherein the hydrophobic pattern is applied by a process selected from the group consisting of spraying; brushing; wiping;

dipping; solvent casting; flow coating; curtain coating; roller coating; spin coating; printing; screen printing; ink jet printing; vacuum coating; magnetic field-assisted cathodic sputtering; plasma deposition; plasma magnetron deposition; chemical vapor deposition; plasma or atmospheric chemical vapor deposition; powder or liquid pyrolysis; atomization;

electrophoretic deposition; cross-linking processes; and combinations thereof.

77. The method of any of claims 63 to 76, comprising applying the hydrophobic pattern in the form of a continuous border, which defines a single non-hydrophobic spill containment central region within said border.

78. The method of claim 77, wherein the continuous border is disposed near the perimeter of the top surface.

79. The method of any one of claims 63 to 78, wherein a portion of the hydrophobic pattern is positioned adjacent the portion of the cooking appliance surface adapted to be heated by the heating element.

80. The method of any one of claims 63 to 79, wherein a portion of the hydrophobic pattern surrounds the portion of the cooking appliance surface adapted to be heated by the heating element.

81. The method of any one of claims 63 to 80, wherein the hydrophobic pattern is in the form of a grid pattern, and wherein the grid pattern bounds a plurality of non-hydrophobic spill containment regions.

82. The method of claim 81, wherein the hydrophobic pattern includes a portion disposed one of adjacent to or surrounding the portion of the cooking appliance surface adapted to be heated by the heating element.

83. The method of any one of claims 63 to 82, wherein the spill containment pattern is transparent.

84. The method of any one of claims 63 to 83, wherein at least a portion of the spill containment pattern is colored.

85. The method of any one of claims 63 to 84, further comprising roughening a portion of the top surface before forming the hydrophobic pattern, wherein the hydrophobic pattern is formed on the roughened portion.

86. The method of claim 85, comprising roughening the top surface by etching or abrading.

87. The method of any one of claims 63 to 86, comprising forming the

hydrophobic pattern in substantially the same plane as the top surface.

88. The method of any one of claims 63 to 87, wherein the top surface is formed of a material selected from the group consisting of glass, ceramic, metal, composites, and combinations thereof.

89. The method of any one of claims 63 to 88, wherein the hydrophobic pattern comprises hydrophobic particles.

90. The method of any one claims 63 to 89, wherein the hydrophobic pattern is formed to a thickness in the range of approximately 0.001 microns to approximately 250 microns.

91. The method of any one of claims 63 to 90, wherein the hydrophobic pattern is formed from a hydrophobic compound comprising a variety of molecular chain lengths to create a coating with surface irregularities.

92. The method of any one of claims 63 to 91 , wherein the cooking appliance surface is selected from the group consisting of oven walls, a cooktop cooking surface, and a stovetop cooking surface.

93. The method of claim 92, wherein the cooking appliance surface is a bottom wall of an oven interior.

94. The method of claim 93, further comprising coating the remaining walls of the oven interior with a hydrophobic material.

95. The method of any one of claims 63 to 94, wherein the top surface is substantially flat.

96. The method of any one of claims 63 to 94, wherein the top surface comprises a plurality of portions adapted to be heated by a plurality of heating elements.

97. The method of claim 96, comprising forming the hydrophobic pattern such that portions of the hydrophobic pattern surround each of the plurality of portions of the top surface adapted to be heated by the plurality of heating elements.

98. The method of any one of claims 96 to 97, comprising forming the

hydrophobic pattern in a grid pattern, wherein each section of the grid pattern comprises at least one heating element.

99. The method of any one claims 63 to 98, wherein the cooking appliance surface further comprises a control unit, and a portion of the hydrophobic pattern is disposed adjacent to the control unit and is arranged to repel spilled liquids away from the control unit.

100. The method of claim 99, wherein a portion of the hydrophobic pattern surrounds the control unit.