Abstract: A pump-out valve for a structure comprises a valve body, a plug assembly, and an operator that removably couples to the valve body. The plug assembly includes a plug corresponding to a seal of the valve body and a vacuum gauge. The operator includes a housing, an actuator, a piston, and an outlet passage. The actuator is actionable to couple the piston to the plug assembly in a first position to allow a user to set the pump-out valve to a sealed state by moving the plug assembly such that the plug assembly engages the seal of the valve body and set the pump-out valve to an open state by removing the plug from the seal of the valve body. The actuator is further actionable to decouple the piston from the plug in a second position to allow the operator to be removed from the valve body.

Abstract: A swivel bayonet joint for transferring cryogenic fluids includes a plug bayonet joint and a socket bayonet joint. The plug bayonet joint has an insertion stem with an insertion jacket surrounding and co-axial with a plug inner line of a corresponding pipe section, and a first clamp member having at least one race. The socket bayonet joint has a vacuum jacket at a distal end thereof that sleeves over the insertion stem of the plug bayonet joint, and a second clamp member having at least one race. When the plug bayonet joint is mated with the socket bayonet joint, the race of the plug bayonet joint aligns with the race of the socket bayonet joint to define a clamp member that is filled with ball bearings, the ball bearings functioning to lock the plug bayonet joint to the socket bayonet joint so as to allow rotation therebetween.