Balloon signal assembly

Details Balloon signal assembly Balloon signal assembly

1975-07-18

1977-03-22

Swisher, S. Clement

Signals and indicators

Bells

Gong type

116DIG8, 116DIG9, B64B 152

Patent

active

040130355

ABSTRACT:
The signal assembly includes an inflatable ballon capable of retaining a lighter-than-air gas connected to a container of the gas under pressure. A seal is provided to prevent the contents of the container from being released into the balloon. The container has a manually yieldable and resilient wall portion to which a needle or equivalent is connected so that, upon inward pressure on the resilient wall portion, the needle breaks the seal. When the manual pressure is released, the restorative action of the resilient wall portion causes the needle to withdraw from the seal leaving a punctured passageway through which gas flows from the container into the balloon. A one-way valve may be provided adjacent the seal to prevent reentry of the gas from the balloon into the container.

REFERENCES:
patent: 2862531 (1958-12-01), Walker
patent: 3007483 (1961-11-01), Keefe
patent: 3070818 (1963-01-01), Fairchild
patent: 3171128 (1965-02-01), Shattuck
patent: 3174455 (1965-03-01), Peterson
patent: 3279419 (1966-10-01), Demarco
patent: 3310024 (1967-03-01), McConnel
patent: 3547073 (1970-12-01), Colandrea
patent: 3721983 (1973-03-01), Sherer

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