发明名称 Method of manufacturing a combustion chamber for a water heater
摘要 A method of manufacturing a combustion chamber for use in a water heater is provided. A skirt is formed, and an edge portion of a plate is spot welded to the skirt. The edge portion of the plate is circumferentially welded to the skirt, thereby forming a seal between the plate and the skirt.
申请公布号 US7337517(B2) 申请公布日期 2008.03.04
申请号 US20040825992 申请日期 2004.04.16
申请人 BRADFORD WHITE CORPORATION 发明人 DOSS GARRETT;GORDON MICHAEL;LANNES ERIC M.
分类号 B21D39/03;F23M5/00;F24H1/00;F24H1/20;F24H9/18 主分类号 B21D39/03
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