FIELD: mechanics.
SUBSTANCE: bellow includes two parts of flexible wall, which are separately deformable, and two support edges intended for being borne against projections of associated part. When bellow is compressed, liquid is supplied from its chamber to outlet branch pipe, and valve connecting chamber to bottle remains closed. During back motion, negative pressure is created in chamber, valve opens and liquid is pumped from bottle to chamber of the device.
EFFECT: pumping of liquid from bottle and creation of barrier for liquid is reached in case the bottle is turned over.
11 cl, 30 dwg
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