VACUUM CLEANING SHOE Russian patent published in 1998 - IPC

FIELD: shoe industry, in particular, cleaning of production rooms from dust, may be also used in museums, hospitals. SUBSTANCE: shoe has top part joined with sole, which is provided with through holes-channels for drawing dust-laden air into front and rear resilient flexible chambers arranged in lower part of shoe. Holes-channels are closed with inlet flaps located on inner side of sole, which does not contact with floor. Net is positioned between inner and outer sides of sole to prevent large dust and garbage particles from penetrating into chambers. Flexible resilient chambers are connected through air ducts via union and discharge valves with dust accumulating chamber located within protective outer collar in upper part of shoe. Dust-accumulating chamber and protective collar may be detached to facilitate replacement of dust-accumulating chamber. During walking, dust-laden air is sucked due to multiple cyclic interaction between user's foot and alternatively front and rear chambers and fed into dust-accumulating chamber. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 5 dwg