发明名称 Fire stop safety astragal
摘要 An astragal is formed by securing lengthwise flexible fire-resistant material to a mounting channel adapted to be mounted on an elevator fire door. The flexible fire-resistant material of the astragal is secured to the upwardly extending flanges of the mounting channel to form an elongated boot of uniform cross-section, wherein the astragal nose is substantially parallel to the mounting channel thereby insuring an effective fire seal.
申请公布号 US4224767(A) 申请公布日期 1980.09.30
申请号 US19790015759 申请日期 1979.02.27
申请人 HARRIS PREBLE COMPANY 发明人 JECMEN, DECEASED, JAMES M.;JECMEN, JOHN J.
分类号 B66B13/30;(IPC1-7):E06B7/16 主分类号 B66B13/30
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