Invention Grant
- Patent Title: Portable ram block changer
- Patent Title (中): 便携式滑块更换器
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Application No.: US14243460Application Date: 2014-04-02
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Publication No.: US09441442B2Publication Date: 2016-09-13
- Inventor: Tan Le , Son Nguyen , Dung Tran , Scott Lee
- Applicant: National Oilwell Varco, L.P.
- Applicant Address: US TX Houston
- Assignee: National Oilwell Varco, L.P.
- Current Assignee: National Oilwell Varco, L.P.
- Current Assignee Address: US TX Houston
- Agency: Conley Rose, P.C.
- Main IPC: E21B33/06
- IPC: E21B33/06

Abstract:
An apparatus for engaging and moving a ram block. In some embodiments, the apparatus, or ram block changer, includes a support bracket coupled to a blowout preventer and an articulated arm releasably coupled to the ram block. The ram block changer may further include a pivot coupling assembly having a first axis of rotation. The pivot coupling assembly extends through the support bracket and the articulated arm, wherein the articulated arm is rotatable about the first axis of rotation relative to the support bracket. The articulated arm may include a first member receiving the pivot coupling assembly therethrough, a second member coupled to the ram block, and a second pivot coupling assembly having a second axis of rotation spaced apart from the first axis of rotation and extending through the first and second members. The second member is rotatable about the second axis of rotation relative to the first member.
Public/Granted literature
- US20140209320A1 PORTABLE RAM BLOCK CHANGER Public/Granted day:2014-07-31
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