Asymmetrical button for ram-type blowout preventers
AssigneeCameron International Corporation
InventorsJohnny E. Jurena, David J. McWhorter, Charles E. Gibbs, Steven F. Shimonek
Life of this patent
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Abstract
An asymmetrical ram button is provided. In one embodiment, a system includes a blowout preventer including such a button. Particularly, the blowout preventer may include an actuation assembly having the asymmetric ram button attached to a connecting rod coupled to a piston. The asymmetric body of the button can engage an internal shoulder of the ram such that a retraction force on the actuation assembly causes the asymmetrical ram button to load against the internal shoulder. Additional systems, devices, and methods are also disclosed.
Claims19
A method comprising:
- aligning a connecting rod with a separate, asymmetrical ram button;
- attaching the ram button to the connecting rod;
- and
- inserting the ram button into a slot of a sealing ram in a manner such that, during operation, the ram button engages substantially all of an internal shoulder of the slot of the sealing ram, a curved end of the ram button engages a curved portion of the internal shoulder of the slot of the sealing ram and a tab end of the ram button engages a majority of the surface area of portions of the internal shoulder extending from the curved portion to an exterior of the sealing ram.
A system comprising:
- a blowout preventer;
- a ram disposed in the blowout preventer;
- and
- an actuation assembly coupled to the ram to enable movement of the ram within the blowout preventer, the actuation assembly including a button disposed in a slot in the ram, a connecting rod attached to the button, and a piston coupled to the connecting rod, the button having an asymmetric body to engage an internal shoulder of the ram within the slot such that, during operation, a retraction force on the actuation assembly causes the asymmetric body of the button to load against the internal shoulder of the ram, wherein the asymmetric body of the button is configured to engage substantially all of the internal shoulder of the ram and includes a curved end configured to engage a curved portion of the internal shoulder of the ram and a tab end configured to engage a majority of the surface area of portions of the internal shoulder extending from the curved portion to an exterior of the ram.
A system comprising:
- a connecting rod;
- and
- an asymmetrical ram button coupled to the connecting rod and configured to be received in a slot of a sealing ram, wherein the asymmetrical ram button is configured to engage substantially all of an internal shoulder of the slot of the sealing ram and includes a curved end configured to engage a curved portion of the internal shoulder of the slot of the sealing ram and a tab end configured to engage a majority of the surface area of portions of the internal shoulder extending from the curved portion to an exterior of the sealing ram.
Dependencies are inferred from the claim text.