| 摘要 |
<p>A marker balloon for use in an emergency to indicate the location of the user, comprising a canister housing (10), an inflatable balloon (32), a gas container (16), and an activator (22) for operating to cause lighter-than-air gas to pass from the gas container (16) and into the balloon (32) to inflate it. Gas is also allowed to pass into the canister (10) to eject the balloon (36) from the canister (10).</p> |
