DUST CATCHING FILTER FOR VACUUM CLEANER AND VACUUM CLEANER FITTED WITH THE SAME Russian patent published in 2005 - IPC

FIELD: mechanical engineering, in particular, vacuum cleaning equipment.

SUBSTANCE: dust catching filter is used in vacuum cleaner having air inlet channel and air outlet channel and is adapted for filtering of dust from air sucked through air inlet channel. Dust catching filter has casing with rear surface and side surface extending vertically from rear surface edge to define predetermined space in filter casing, cover provided with air inlet opening, which is in fluid communication with air inlet channel, and detachably connected to filter casing, and dust filtering device located in filter casing and adapted for filtering dust from air sucked through air inlet opening and discharged through air outlet opening. Rear surface is equipped with air discharge opening provided therein for enabling fluid communication with air outlet channel. Dust filtering device has first dust filtering member adapted for filtering of large-sized dust particles and including carcass made integral with rear surface of filter casing and adapted for dividing filter casing inner cavity into external dust collecting part and internal air discharge part. Carcass has plurality of radial apertures and netted member attached to side wall of carcass so as to embrace carcass apertures. Second dust filtering member is adapted for filtering of fine dust which had not been filtered by first dust filtering member. Vacuum cleaner has case provided with dust collector, air inlet channel and air outlet channel. Vacuum cleaner case is connected with suction brush. Low pressure creating device is arranged in drive chamber and adapted for creating low pressure in dust collector. Reusable dust catching filter is located in dust collector and adapted for filtering out and catching of dust from air admitted into dust collector. Drive chamber is positioned in rear part of dust collector in fluid communication therewith through air outlet channel.

EFFECT: increased efficiency by repeated usage of dust catching filter after emptying and washing thereof to provide for hygienic filtering means, simplified mounting in and withdrawal of dust catching filter from dust collector.

12 cl, 6 dwg