发明名称 Means for and method of making a cast structural fire proof panel assembly
摘要 The invention relates to means and method of making a multiple castable structural panel in a single pouring operation. A mold-envelope constructed from a plurality of pieces is provided. The mold-envelope is constructed without any external fastening means. The poured core holds the pieces of the mold-envelope together.
申请公布号 US4967532(A) 申请公布日期 1990.11.06
申请号 US19900492394 申请日期 1990.03.07
申请人 AVCO CORPORATION 发明人 CASTLE, GEORGE K.;KASH, EDWARD C.
分类号 B28B19/00;E04B1/94;E04C2/34 主分类号 B28B19/00
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