SUCTION HEAD Russian patent published in 2007 - IPC A47L9/02 

FIELD: constructional parts of vacuum cleaners used in industrial and domestic dust removing systems.

SUBSTANCE: suction head has casing with through-flow channels and suction branch pipe positioned within casing. Detachable partition positioned on lower end of casing has grooves formed on its lower surface and provided with through apertures. Head is equipped with supporting part mounted for axial movement on casing. Supporting part is made in the form of annular supporting member joined with spring-loaded sleeve positioned on casing. Supporting surface of annular member is below lower surface of partition. Suction head of such construction is designed for non-destructive vacuum cleaning of materials sensitive to friction and mechanical contacting, and also easily broken and easily bendable materials.

EFFECT: increased efficiency and high quality of vacuum dust removal by preventing contacting between easily damaged surface under cleaning process and head end, and by increasing stretching of material in cleaning and peripheral zones, and wider operational capabilities of suction head.

2 cl, 2 dwg