Balloon having a self sealing valve and method of making same

摘要: A balloon comprising first and second sheets a self-sealing valve positioned between the sheets. Each sheet has body portion stem extending outwardly from terminating at end. The are bonded together generally around their peripheries to define stem. of is shorter than so that end extends beyond an extended sheet. comprises each having inlet end, outlet intermediate region ends. disposed with overlying combine form guide tongue for facilitating insertion gas supply nozzle into during inflation balloon.