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US 6,698,337 B1Granted
Air core cookware
OwnerJong Peter Parkinventor
Life of this patent
Estimating the term…
Abstract
An Air Core™ cooking vessel has an outer shell, an inner shell disposed inside the outer shell forming an inner space between the outer and inner shells. The inner space formed between the outer and inner shells by interlocking the outer edges of the top flange of the inner shell to outer edges of the bottom flange of the outer shell preserves heat and traps moisture during cooking.
Claims14
A multilayered cooking vessel comprising:
- an inner shell having an open region having a bottom surface which extends upwardly to terminate at a top flange, a portion of the top flange forming an inner rim and an outer rim, the inner rim having a radius less than the radius of the outer rim, the outer rim formed substantially above the inner rim;
- an outer shell having an open region having a bottom surface which extends upwardly to terminate at an outwardly projecting bottom flange, the bottom flange having a length less than the length of the top flange;
- an inner space formed in an area between the inner shell and the outer shell and at least partially contains a heat conduction medium, the inner space formed by disposing the inner shell into the open region of the outer shell;
- an inner lid adapted to cover the open region of the inner shell and a portion of the inner rim;
- and
- an outer lid adapted to cover the cooking vessel and a portion of the outer rim, wherein outer edges of the top flange is interlocked to outer edges of the bottom flange and substantially flattened to hermetically seal the inner space.
3 more elements
Dependencies are inferred from the claim text.