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U.S. Department of Energy
Office of Scientific and Technical Information

Altitude release mechanism

Patent ·
OSTI ID:862952
An altitude release mechanism for releasing a radiosonde or other measuring instrument from a balloon carrying it up into the atmosphere includes a bottle partially filled with water, a tube sealed into the bottle having one end submerged in the water in the bottle and the free end extending above the top of the bottle and a strip of water-disintegrable paper held within the free end of the tube linking the balloon to the remainder of the package. As the balloon ascends, the lowered atmospheric air pressure causes the air in the bottle to expand, forcing the water in the bottle up the tubing to wet and disintegrate the paper, releasing the package from the balloon.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Number(s):
US 4056000
OSTI ID:
862952
Country of Publication:
United States
Language:
English