发明名称 VERBINDUNGSVORRICHTUNG FUER ROHRE
摘要 Connector apparatus includes a guide surface spaced from internal threads on one member for receiving external threads on a second member, whereby the two members may be threadedly engaged with the guide surface constraining relative orientation between the two members prior to threaded engagement to avoid cross-threading.
申请公布号 DE3231260(A1) 申请公布日期 1983.03.03
申请号 DE19823231260 申请日期 1982.08.23
申请人 DRIL-QUIP,INC. 发明人 E. REIMERT,LARRY
分类号 E21B17/042;E21B17/08;F16L15/00 主分类号 E21B17/042
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