Invention Grant
- Patent Title: Tubular engaging device and method
- Patent Title (中): 管状接合装置及方法
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Application No.: US13329069Application Date: 2011-12-16
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Publication No.: US08985225B2Publication Date: 2015-03-24
- Inventor: Kevin James Nikiforuk
- Applicant: Kevin James Nikiforuk
- Applicant Address: US TX Houston
- Assignee: Tesco Corporation
- Current Assignee: Tesco Corporation
- Current Assignee Address: US TX Houston
- Agency: Fletcher Yoder, P.C.
- Main IPC: E21B19/16
- IPC: E21B19/16

Abstract:
Present embodiments are directed to a device for a top drive drilling system. The device includes a movable sleeve configured to be disposed around at least a portion of a sub. The movable sleeve is configured to be selectively disposed around a tubular by sliding axially along the sub. The device also includes a plurality of engagement features extending inwardly from an inner circumference of the movable sleeve. When the movable sleeve is disposed around the tubular, the plurality of engagement features are configured to engage the tubular when the movable sleeve is rotated in a first direction and to not engage the tubular when the movable sleeve is rotated in a second direction.
Public/Granted literature
- US20130153244A1 TUBULAR ENGAGING DEVICE AND METHOD Public/Granted day:2013-06-20
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