High pressure closure
AssigneeRobbins & Myers Energy Systems L.P.
InventorsBilly W. White, Lawrence F. Angelo, Michael J. Guidry, Jr.
Life of this patent
Estimating the term…
Abstract
A closure includes a hub having a bore in fluid communication with the port of a vessel. A door is removably positioned within the bore of the hub, and a locking ring is threaded with the hub thread for moving the door to a closed and circumferentially sealed position against the shoulder. At least one rotatable actuator element, such as a plurality of gears, engages the locking ring and is rotated to rotate the locking ring. A breaker bar or impact wrench could be used to rotatable drive the actuator elements.
Claims29
A closure to sealingly enclose a port in a vessel, comprising:
- a hub having a bore that defines a hub central axis for fluid communication with the port, a hub thread secured to the hub and generally centered about the hub central axis, a proximate end for sealing to the vessel about the port, and a distal end axially opposite the proximate end;
- a door movable within the bore of the hub;
- a shoulder within the hub for seating with the door;
- a seal circumferentially sealing between the door and the hub when the door is seated with the shoulder;
- a locking ring having a ring central axis and a ring thread generally centered about the ring central axis, the ring thread engageable with the hub thread, the locking ring rotatable relative to and axially engageable with the door for moving the door to a closed position against the shoulder upon rotation of the locking ring about the ring central axis;
- and
- at least one rotatable actuator element engaging the locking ring and rotatable about an axis of rotation spaced from the ring central axis such that rotation of the actuator element rotates the locking ring.
A closure to sealingly enclose a port in a vessel, comprising:
- a hub having a bore that defines a hub central axis for fluid communication with the port, a hub thread secured to the hub and generally centered about the hub central axis, a proximate end for sealing to the vessel about the port, and a distal end axially opposite the proximate end;
- a door movable within the bore of the hub;
- a shoulder within the hub for seating with the door;
- a seal circumferentially sealing between the door and the hub when the door is seated with the shoulder;
- a locking ring having a ring central axis and a ring thread generally centered about the ring central axis, the ring thread engageable with the hub thread, the locking ring rotatable relative to and axially engageable with the door for moving the door to a closed position against the shoulder upon rotation of the locking ring about the ring central axis;
- at least one rotatable actuator element engaging the locking ring and rotatable about an axis of rotation spaced from the ring central axis such that rotation of the actuator element rotates the locking ring;
- and
- a plurality of teeth circumferentially arranged about the ring central axis;
- and
- the at least one rotatable actuator element comprises at least one gear for engaging the plurality of teeth and rotating the locking ring upon rotation of the at least one gear.
Dependencies are inferred from the claim text.