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.
Claims17
A system comprising:
- a blowout preventer;
- a ram disposed in the blowout preventer, the ram including an end face having a major axis, a minor axis, and a slot that extends along the major axis of the end face from an edge of the ram;
- 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 the 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 an end of the connecting rod is received within the slot with the button and the asymmetric body of the button extends lengthwise within the slot from the connecting rod toward the edge 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 ram of a blowout preventer, the asymmetrical button having an elongate body that is coupled to the connecting rod and is elongate in a direction transverse to the connecting rod, wherein the asymmetrical ram button includes a curved end configured to engage a curved portion of an internal shoulder of the slot 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.
Dependencies are inferred from the claim text.