Balloon signalling system

Signals and indicators – Indicators – By location

Patent

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Details

116DIG9, B64B 150

Patent

active

050204670

ABSTRACT:
A balloon signalling system includes a hollow, generally cylindrical casing having a container section with an upper open end and a bottom closed end, and a cap placeable on the upper end of the container section to form an enclosure. Also included is a spool on which a string may be wound, with the spool being disposed in the container section near the bottom end thereof to rotate about a transverse axis. A cartridge containing lighter-than-air gas under pressure is disposed in the container section above the spool so that a nozzle end of the cartridge protrudes from the container section when the cap is removed. A valve is disposed in the nozzle end of the cartridge and is manually operable from a closed position to an open position to allow gas to escape from the cartridge out the nozzle end and into a balloon which is mounted on the nozzle end. The balloon is dimensioned to fit in the cap when deflated and includes a mouth which may be placed over the nozzle and to secure the balloon to the cartridge.

REFERENCES:
patent: 2862531 (1958-12-01), Walker
patent: 3381655 (1968-05-01), Rozzelle
patent: 3735723 (1973-05-01), Lutz
patent: 3941079 (1976-03-01), McNeill
patent: 4044711 (1977-08-01), Jamison
patent: 4094267 (1978-06-01), Davis, Jr.
patent: 4219819 (1980-08-01), Patel
patent: 4416433 (1983-11-01), Bellina
patent: 4586456 (1986-05-01), Forward
patent: 4800835 (1989-01-01), Mears
patent: 4836128 (1989-06-01), Walker
patent: 4872414 (1989-10-01), Asquith et al.

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