Induction cookware
AssigneeBose Corporation
InventorDavid W. Beverly
Life of this patent
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Abstract
An inductive cooking utensil with a concave cooking surface at room temperature and a substantially flat cooking surface at a cooking temperature.
Claims28
An inductive cooking utensil including a target layer comprising ferromagnetic stainless steel, a heat spreader layer comprising an aluminum alloy bonded to the target layer, and a cooking layer comprising stainless steel bonded to the heat spreader layer, wherein the cooking layer has a concave cooking surface at room temperature that flattens to have a degree of flatness of at least 99.5% at a cooking temperature.
An inductive cooking utensil comprising:
- an outer wall;
- an inner wall disposed within and coupled to the outer wall, the inner wall having a concave cooking surface at room temperature that flattens to have a degree of flatness of at least 99.5% at a cooking temperature of between about 218° C. and about 274° C.;
- and
- a gap defined between a portion of the inner wall and the outer wall.
A method of forming an inner wall for an inductive cooking utensil, the method comprising:
- bonding a cooking layer consisting essentially of one of 24 gauge 316 stainless steel and 24 gauge 305 stainless steel to an upper surface of a heat spreader layer consisting essentially of a 2 mm thick layer of one of 1060 aluminum and 6061 aluminum;
- and
- bonding a target layer consisting essentially of one of 24 gauge 410 stainless steel and 28 gauge 410 stainless steel to a lower surface of the heat spreader layer.
Dependencies are inferred from the claim text.