Invention Grant
- Patent Title: Redundant seal apparatus and method
- Patent Title (中): 冗余密封装置及方法
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Application No.: US13665332Application Date: 2012-10-31
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Publication No.: US09010761B2Publication Date: 2015-04-21
- Inventor: Eric Deutsch , Michael Macklin , Beat Kuttel
- Applicant: Canrig Drilling Technology Ltd.
- Applicant Address: US TX Houston
- Assignee: Canrig Drilling Technology Ltd.
- Current Assignee: Canrig Drilling Technology Ltd.
- Current Assignee Address: US TX Houston
- Agency: Haynes and Boone, LLP
- Main IPC: F16J15/32
- IPC: F16J15/32 ; F16J15/00

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.
Public/Granted literature
- US20140117623A1 REDUNDANT SEAL APPARATUS AND METHOD Public/Granted day:2014-05-01
Information query
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