发明名称 Fireplace venting system
摘要 A fireplace venting system wherein the opening to the combustion chamber is provided with a manifold extending across the top and at opposite sides of the opening. The manifold is provided with a plurality of holes which direct air delivered from the exterior of a building to be heated across the opening of the fireplace and into the combustion chamber to supply the combustion air and to isolate the fireplace combustion chamber so that heat is not lost from the room to be heated and so that smoke from the fireplace does not enter the room.
申请公布号 US4195618(A) 申请公布日期 1980.04.01
申请号 US19770865974 申请日期 1977.12.30
申请人 LARRY LAWSON 发明人 KELLOGG, JOHN E
分类号 F24B1/185;F24B1/19;(IPC1-7):F24B1/18;F24B7/00 主分类号 F24B1/185
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