Inflatable bag with inner and intermediate containers and gas ge

Details Inflatable bag with inner and intermediate containers and gas ge Inflatable bag with inner and intermediate containers and gas ge

1986-05-23

1988-11-01

Stouffer, Richard T.

Amusement devices: toys

Operated by relatively moving fluid or pressure differential

Including variable-size fluid chamber to move fluid

441100, 446221, 446224, 446226, A63H 500, A63H 3300

Patent

active

047816457

ABSTRACT:
An inflatable bag comprises a small sack which is charged with sodium bicarbonate and accommodating a small externally breakable container filled with an acidic solution. The small sack is enveloped in an inflatable bag member which is made of a synthetic resin having no permeability to the gas which is generated as a reaction between the sodium bicarbonate and the acidic solution. As the small container is collapsed by external pressure, the acidic solution flows out of the container into reaction with the sodium bicarbonate, thereby generating carbon dioxide gas. The small sack is punctured by the gas pressure with a sound of a bang or a whistle and, thereafter, the inflatable gas member is gradually inflated. It is possible to use a plurality of small sacks made of a material which exhibits small extension, such that one small sack is contained in another sack. With this arrangement, the "bang" can be generated repeatedly or the whistles blown successively by the same number as the number of the small sacks used.

REFERENCES:
patent: 686412 (1901-11-01), Magnin
patent: 1217277 (1917-02-01), Cohn
patent: 1518897 (1924-12-01), Bruckner et al.
patent: 2097542 (1937-11-01), Wallin
patent: 2635387 (1953-04-01), Anderson
patent: 3472218 (1969-10-01), Mers
patent: 3595948 (1971-07-01), Cosani
patent: 4213267 (1980-07-01), Curtis

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