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公开(公告)号：US20140117623A1
公开(公告)日：2014-05-01
申请号：US13665332
申请日：2012-10-31
Applicant: CANRIG DRILLING TECHNOLOGY LTD.
Inventor： Eric Deutsch , Michael Macklin , Beat Kuttel
IPC: F16J15/32
CPC classification number: F16J15/3216 , E21B3/02 , F16J15/008 , Y10T29/49826
Abstract: An apparatus includes a rotatable shaft having a shaft surface and a first seal disposed in a sealing engagement with the shaft surface. At least a second seal is disposed in a first position relative to the rotatable shaft where the second seal is not in sealing engagement with the shaft surface and is movable to a second position relative to the rotatable shaft where the second seal is in sealing engagement with the shaft surface.
Abstract translation: 一种装置包括具有轴表面的旋转轴和与轴表面密封接合的第一密封件。 至少第二密封件相对于可旋转轴设置在第一位置，其中第二密封件不与轴表面密封接合，并且可移动到相对于可旋转轴的第二位置，其中第二密封件与第二密封件密封接合 轴表面。
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公开(公告)号：US09010761B2
公开(公告)日：2015-04-21
申请号：US13665332
申请日：2012-10-31
Applicant: Canrig Drilling Technology Ltd.
Inventor： Eric Deutsch , Michael Macklin , Beat Kuttel
CPC classification number: F16J15/3216 , E21B3/02 , F16J15/008 , Y10T29/49826
Abstract: An apparatus includes a rotatable shaft having a shaft surface and a first seal disposed in a sealing engagement with the shaft surface. At least a second seal is disposed in a first position relative to the rotatable shaft where the second seal is not in sealing engagement with the shaft surface and is movable to a second position relative to the rotatable shaft where the second seal is in sealing engagement with the shaft surface.
Abstract translation: 一种装置包括具有轴表面的旋转轴和与轴表面密封接合的第一密封件。 至少第二密封件相对于可旋转轴设置在第一位置，其中第二密封件不与轴表面密封接合，并且可移动到相对于可旋转轴的第二位置，其中第二密封件与第二密封件密封接合 轴表面。
