Invention Grant
- Patent Title: Wellbore tong
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Application No.: US16274952Application Date: 2019-02-13
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Publication No.: US11377915B2Publication Date: 2022-07-05
- Inventor: Kevin Wood , Arne Tjark Becker
- Applicant: Weatherford Technology Holdings, LLC
- Applicant Address: US TX Houston
- Assignee: Weatherford Technology Holdings, LLC
- Current Assignee: Weatherford Technology Holdings, LLC
- Current Assignee Address: US TX Houston
- Agency: Patterson + Sheridan, LLP
- Main IPC: E21B19/16
- IPC: E21B19/16

Abstract:
A tong for use at a wellbore includes a tong body; at least one door pivotally coupled to the tong body and movable between an open position and a closed position; a carrier ring rotatable relative to the tong body; and a brake plate coupled to the carrier ring. The tong also includes a brake band configured to move with the at least one door between the open and closed positions, and a braking member for moving the brake band into contact with the brake plate to stop rotation of the carrier ring.
Public/Granted literature
- US20200256137A1 WELLBORE TONG Public/Granted day:2020-08-13
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