Bonded metal components having uniform thermal conductivity...

Details Bonded metal components having uniform thermal conductivity... Bonded metal components having uniform thermal conductivity...

2007-04-24

2007-04-24

Zimmerman, John J. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S685000, C220S573100, C220S573200, C228S155000, C228S190000, C228S235300

Reexamination Certificate

active

11199397

ABSTRACT:
Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of stainless steel roll bonded at or near the core of the composite. The stainless layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel or aluminum. The layer of stainless steel adjacent to the cooking range may be a ferromagnetic grade of stainless steel if induction-type heating is desired. The cookware may include a non-stick surface applied thereto.

REFERENCES:
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patent: 3966426 (1976-06-01), McCoy et al.
patent: 4541411 (1985-09-01), Woolf
patent: 4646935 (1987-03-01), Ulam
patent: 5532460 (1996-07-01), Okato et al.
patent: 5952112 (1999-09-01), Spring
patent: 6267830 (2001-07-01), Groll
patent: 6926971 (2005-08-01), Groll

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