DEVICE TO BE USED IN VACUUM CLEANER NOZZLE Russian patent published in 2008 - IPC A47L9/06 

FIELD: engines and pumps.

SUBSTANCE: device contains a frame with a suction opening arranged on the vacuum cleaner so that the frame suction opening is aligned with the vacuum cleaner nozzle suction opening. There is an elongated lip enveloping the frame suction opening. The lip opposite parts are separated to form an air passage extending from the frame edge to the frame suction opening. The device incorporates a cleaning lining with a structure allowing a passage of air with dust particles and having an opening for passage of air with dust particles exceeding that of the dust particles passing through the cleaning lining structure. The cleaning lining can be arranged in the frame to overlap the lip extending to the frame suction opening and allowing sucking in comparatively minor particles through the cleaning lining and sucking in comparatively major particles into the suction opening through the aligned openings of the cleaning lining and the passage formed by the lip opposite parts. The cleaning lining is made from air tight material or perforated to allow the passage or air with dust particles.

EFFECT: optimum combination of vacuum cleaning with washing with the cleaning lining.

3 cl, 9 dwg