发明名称 DISPOSITIVO PARA EXTRAIR MATERIAL DE ENCHIMENTO FLUENTE ATRAVES DE UMA PAREDE FLEXIVEL DE UM SACO
摘要 A device for withdrawing flowable filling material through a wall of a bag having flexible walls, comprising a first member having a throughbore and an annular sealing surface surrounding the throughbore, a second member having an annular sealing surface and separating means formed radially inwardly of the sealing surface to cut a bag wall, the first and the second member including cooperating locking means which enter into an interlocking engagement when the separating means makes two cuts through the wall forming the bag. The annular sealing surfaces of the first and the second member are brought into sealing engagement to outer surface of the bag wall, whereby the first and the second member, each, are adapted to be brought into sealing engagement with the outer surface of the wall forming the bag.
申请公布号 BR9007578(A) 申请公布日期 1992.04.14
申请号 BR19909007578 申请日期 1990.07.31
申请人 MINNESOTA MINING MANUFACTURING COMPANY 发明人 WINFRIED KNORR
分类号 A61J1/20;B65D33/38;B65D51/22;B65D75/58;B65D83/00;B67B7/20;B67B7/86;B67D3/04 主分类号 A61J1/20
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