HAND BAG Russian patent published in 1995 - IPC

FIELD: consumers' goods. SUBSTANCE: enhanced reliability of keeping things in a hand soft bag is ensured due to the usage of the gas-hermetic material, due to the enclosure of main reservoir 1 into exterior wall 5 along the whole surface and due to the separation of interwall space 7 into separate chambers by hermetic seams 6. Pneumatic whistles 8 of two-sided action are built in the seams. One of the chambers is equipped with the means for forcing the differential pressure of the air into the interwall space. The means are made in the form of flexible pipe 11 closed by cork 12 and located mainly inside the main cavity of reservoir 1. EFFECT: enhanced reliability. 2 cl, 3 dwg