US Patent 11384883 Cryogenic transfer line coupling assembly

A cryogenic transfer line assembly and cryogenic transfer line coupling for a cryostat is presented. The cryogenic transfer line assembly includes an induction tube communicatively coupled to a cryostat, a cryogenic transfer line having defined as a portion thereof a second portion of a bayonet coupling and a cryogenic transfer line coupling, The cryogenic transfer line coupling communicatively couples the induction tube and the cryogenic transfer line and has defined as a portion thereof a first portion of the bayonet coupling and a gate valve. The gate valve prevents the ingress of environmental air passing through the first portion of the bayonet coupling to a cryogenic fluid disposed within a cryogenic vessel of the cryostat upon disengagement of the cryogenic transfer line from the cryogenic transfer line coupling.