发明名称 SELF-CONTAINED KEYHOLE WELD FITTING AND METHOD OF USE
摘要 <p>The present invention is generally directed toward a method for attaching a self-contained keyhole weld fitting and apparatus. More specifically, the present invention provides an improved fitting and method of use providing a branch outlet which can be physically and sealably secured to an underground pipe while causing less disturbance to the earth above the pipe than using a traditional fitting and excavation.</p>
申请公布号 WO2008137411(A1) 申请公布日期 2008.11.13
申请号 WO2008US61876 申请日期 2008.04.29
申请人 TDW DELAWARE, INC.;SHAW, BRIAN S. 发明人 SHAW, BRIAN S.
分类号 F16L41/00 主分类号 F16L41/00
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