发明名称 Method of making a two-piece end plug for insertion into an end of a paper roll
摘要 An end plug (1) for insertion into an end of a paper roll includes an inner (2) and an outer piece (3), the pieces being rotatably attached to each other and prevented from axial movement in relation to each other by at least one protrusion (6) of one of the pieces running in an annular groove (7) in the other of the pieces. A method of manufacturing such an end plug is also disclosed.
申请公布号 US7879274(B2) 申请公布日期 2011.02.01
申请号 US20080068052 申请日期 2008.02.01
申请人 SCA HYGIENE PRODUCTS AB 发明人 LARSSON BJORN
分类号 B29C45/14;A47K10/38;B29C45/16;B29C61/02;B65H75/18 主分类号 B29C45/14
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