An anti-rotation device prevents an inner wellhead housing from rotating within an outer wellhead housing. The anti-rotation device provides cam rollers within the inner wellhead housing that wedge between opposing surfaces of the inner wellhead housing and outer wellhead housing to arrest either clockwise or counter-clockwise rotation of the inner wellhead housing. The cam rollers are circumferentially spaced apart around the inner wellhead housing.
https://app.acclaimip.com/pdf/ONAX478sXTSQ0BeGWixdOPuHepdlJ7Ge-JvQdDk/US8469102B2
For more information or to license this innovation:
- Log In
to view the innovation's details
- Sign Up
with discount code "ECOS"
