发明授权
- 专利标题： Load ring for lifting by elevator, of casing having no upset
- 专利标题（中）： 电梯起重吊环，套管无松动
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申请号： US10690445申请日： 2003-10-21
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公开(公告)号： US07357434B2公开(公告)日： 2008-04-15
- 发明人: Burney J. Latiolais, Jr. , Keith T. Lutgring , Braxton I. Moody, V. , John K. M. Saichuk , Samuel P. Hawkins, III
- 申请人： Burney J. Latiolais, Jr. , Keith T. Lutgring , Braxton I. Moody, V. , John K. M. Saichuk , Samuel P. Hawkins, III
- 申请人地址： US TX Houston
- 专利权人： Frank's International, Inc.
- 当前专利权人： Frank's International, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： The Matthews Firm
- 主分类号： B66C1/10
- IPC分类号： B66C1/10 ; B65D59/06
摘要：
A cylindrical ring sized to slide over the box end of an oilfield tubular having a given external diameter, has a shoulder at one its ends and a sidewall along its length. The sidewall has a circumferential groove about its interior surface housing a band which can be made tight against the exterior surface of the oilfield tubular by a latch, accessible through a slot in the sidewall, and which becomes even tighter if the tubular attempts to escape from the band. In a first orientation, the cylindrical ring is used as a load ring. By turning the cylindrical ring upside down, the cylindrical ring is used as a thread protector for the pin end of the tubular.
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