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公开(公告)号:US20120291687A1
公开(公告)日:2012-11-22
申请号:US13274207
申请日:2011-10-14
申请人: JULIE ANN DEHNE , WILLIAM ANDREW WEST , DONALD WAYNE ALLEN , PHILIP ALBERT LARSON , DEAN LEROY HENNING
发明人: JULIE ANN DEHNE , WILLIAM ANDREW WEST , DONALD WAYNE ALLEN , PHILIP ALBERT LARSON , DEAN LEROY HENNING
CPC分类号: F16L9/006 , B63B2021/504 , E21B17/01 , F16L1/123 , F16L1/15
摘要: An apparatus including a strake section having a plurality of helical fins separated by at least one helical opening. A method including forming a helically shaped fin that independently maintains the helical shape once formed.
摘要翻译: 一种装置,包括具有由至少一个螺旋开口分开的多个螺旋形翅片的带状部分。 一种包括形成螺旋形状的螺旋状翅片的方法,一旦形成。