Invention Grant
- Patent Title: Actuator for a drill string internal blowout preventer
- Patent Title (中): 钻柱内部防喷器执行机构
-
Application No.: US116456Application Date: 1993-09-03
-
Publication No.: US5507467APublication Date: 1996-04-16
- Inventor: Keith C. Mott
- Applicant: Keith C. Mott
- Applicant Address: TX Houston
- Assignee: Hydril Company
- Current Assignee: Hydril Company
- Current Assignee Address: TX Houston
- Main IPC: E21B21/10
- IPC: E21B21/10 ; F16K31/163 ; F16K31/122
Abstract:
A remotely operated actuator for a drill string internal blowout preventer is disclosed. It includes an annular cylinder for mounting on the preventer housing to rotate with the housing and the kelly. An annular piston in the cylinder moves a link pivotally connected to the piston and a crank arm to open and close the preventer.
Public/Granted literature
- US4857753A Wind energy convertor Public/Granted day:1989-08-15
Information query
