发明名称 Hang-free thread design
摘要 A threaded pin and box connection having thread geometries and/or dissimilar thread fits that prevent the pin thread of a connection from hanging up in the box thread as the pin is being stabbed into or destabbed from the box. Dissimilar geometries and/or threads include dissimilar thread types, dissimilar leads, overlapping leads, thread tooth widths of one component greater than thread grooves of the other component, multiple start threads, and combinations thereof.
申请公布号 US7007984(B2) 申请公布日期 2006.03.07
申请号 US20020301079 申请日期 2002.11.21
申请人 TORQUELOCK CORPORATION 发明人 CHURCH KRIS L.
分类号 F16L15/00;F16B33/02;F16B35/04;F16L15/06 主分类号 F16L15/00
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