发明名称 Packer for cladding the transition between a water mains pipe and a domestic connection pipe that flows into the mains pipe
摘要 The packer (1) has elastic material produced shells (3,4) arranged one above another on the periphery of a support tube (2). The ends of the shells are peripherally joined together. The outer shell is provided with an elastic material attachment (10). The space between the shells is filled with the pressure medium such as air that acts on the elastic material attachment.
申请公布号 EP2461080(A3) 申请公布日期 2015.12.30
申请号 EP20110008744 申请日期 2011.11.03
申请人 SCHWALM, MARTIN 发明人 SCHWALM, MARTIN
分类号 F16L55/179 主分类号 F16L55/179
代理机构 代理人
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