Title: Laminated cookware units

Abstract: A multiply durable laminated cookware unit includes components having a ferrous steel core ply roll plated with second and third aluminum plies which are softer and anodic relative to the core ply and which are bonded to the core ply under pressure so as to provide exposed surfaces on the unit which exhibit the properties of rolled solid aluminum sheets. The exposed edge of the steel core can be protected by drawing at least one of the softer anodic aluminum cover sheets such that it extends beyond the harder steel core and the extended portion of the aluminum sheet is folded over the steel core to seal the edge end of the steel core therebeneath.

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Inventors: Racz, Nick S. (Palos Park, IL, US)

Application Number: 326072
Filing Date: 1973-01-24
Publication_date: 1976-01-06
Assignee: Burdett Manufacturing Company (Bridgeview, IL)
Primary Class(es): 428/674 220/62.11, 220/62.15, 220/912, 220/917, 428/582, 428/626, 428/653, 428/926
Other Classes:
US Patent Ref:

1792377	Feb, 1931	Jordan	29/196.
2468206	Apr, 1949	Keene	29/196.
2664874	Jan, 1934	Graham	29/196.
2941289	Jan, 1960	Chace	29/196.
3173202	Mar, 1965	Farber	29/196.
3456332	Jul, 1969	Belalov	29/196.
3468695	Sep, 1969	Federman	29/196.
3490126	Jan, 1970	Miller	29/196.
3788513	Jan, 1974	Aaez	220/64.

Other Refs: 528,726

Jul, 1931	DD

Primary Examiner: Lovell, C.
Assistant Examiner: Steiner, Arthur J.
Attorney: Molinare, Allegretti, Newitt & Witcoff