发明名称 PROTECTIVE GIRTH-WELD COVER WITH AIR RELEASE
摘要 A pipe system comprises first and second pipes having first and second ends welded together forming a girth-weld and a heat recoverable polymer material comprising a plurality of holes extending therethrough covering the girth-weld. The heat recoverable polymer material can include a surface having an adhesive coated thereon disposed on the girth-weld. Air trapped underneath the recoverable polymer material can be released through the plurality of holes during shrinking of the heat recoverable polymer material. Also, a portion of the adhesive can flow through the holes during a shrinking of the heat recoverable polymer material.
申请公布号 WO2007121223(A3) 申请公布日期 2008.01.03
申请号 WO2007US66400 申请日期 2007.04.11
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 NESTEGARD, MARK K.;ANDERSON, MARK T.;MUYRES, DAWN V.;PEREZ, MARIO A.
分类号 F16L57/00;F16L58/02 主分类号 F16L57/00
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