Self-sealing inflation nozzle for neck of balloon - has hollow shank with closed end and radial orifice between two discs on shank, and is sealed by distension of balloon membrane by discs

摘要

Two spaced parallel circular disks are rigidly affixed to a central shank which extends beyond one of them. The shank extension is bored with a passage, sealed at the far end, in communication with the annular space between the disks by means of a radial orifice. The tubular neck of the balloon is stretched over the sealing disks, with the shank extension protruding from the opening of the balloon sheath. Upon pressurizing the passage in the shank, that portion of the balloon stretched between the two disks distends and permits the inflating medium to enter the gasbag around the periphery of the inner disk. The inflation device may be adapted to the inflation of multiple nested balloons by the addition of further sealing disks along the extended shank.