VACUUM CLEANER SUCTION HEAD, VACUUM CLEANER CONTAINING SUCH SUCTION HEAD AND METHOD FOR SHAKING SURFACE TO BE CLEANED Russian patent published in 2014 - IPC A47L5/00 

FIELD: personal use articles.

SUBSTANCE: vacuum cleaner 10 suction head 12 contains a suction head 14 for creation of a low pressure area contained therein and interfacing the surface to be cleaned 16, and a series of air nozzles 20. Each air nozzle 20 is designed so that to enable induction of an air vortex into the suction chamber 14, the vortex directed towards the surface to be treated 16. Each nozzle contains an air inlet hole and an air outlet hole and has a conic frustrum surface; the air inlet hole is positioned tangential relative to the air outlet hole to direct air tangentially relative to the conic frustrum shaped surface.

EFFECT: vortex movement induced lifts and picks dust and debris inside the carpet.

41 cl, 28 dwg