Patent ID: 9555336
Date: 2017-01-31
CPC Classifications: A63H

Claim:
1. A balloon inflating device, comprising: a gas mixing device fluidly connecting a supply of pressurized lighter-than-air (LTA) gas and a supply of a second gas to a balloon interface nozzle via a gas shut-off valve; the gas mixing device including an outer pipe including a closed first end, an inner chamber, an inner pipe projecting through the closed first end of the outer pipe into the inner chamber, a first fluidic inlet and an outlet port, wherein the inner pipe includes a second fluidic inlet into the inner chamber; the second fluidic inlet fluidly connecting to the supply of LTA gas; the first fluidic inlet proximal to the closed first end and fluidly connecting to the supply of the second gas; a second end of the outer pipe fluidly connecting to the outlet port; and the outlet port fluidly connecting to the balloon interface nozzle via the gas shut-off valve; wherein the gas shut-off valve includes an outer pipe, a seat, a ball valve and a shutoff guard, wherein the seat is formed on an annular outlet of the outlet port of the gas mixing device, the outer pipe houses the ball valve, and the shutoff guard is located between the ball valve and the balloon interface nozzle.