| 摘要 |
A self erecting personal water safety device (10) includes a marker device having a flag portion (20) and a base portion (22) normally in the collapsed state; an erection chamber (74) in the flag portion and a compressible storage chamber (72) in the base portion for storing an actuating fluid and interconnected with the erection chamber for compressing when submerged in water to transfer fluid to the erection chamber and erect the flag portion.
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