A vacuum cleaner including a cyclonic separating unit that includes a cyclonic separator having a separator axis and an end wall which is openable for the removal of dirt from the cyclonic separator, a screen disposed within the cyclonic separator such that it extends in the longitudinal direction of the cyclonic separator, wherein the cyclonic separator is movable relative to the screen between a first position and a second position in the longitudinal direction of the cyclonic separator; a catch arranged to secure the openable end wall in a closed position; and an actuator which is actuated to release the catch when the cyclonic separator is moved into the second position. In an alternative embodiment, there is provided a vacuum cleaner apparatus in which the actuator is enabled for subsequent release of the catch when the cyclonic separator is moved into the second position.

A vacuum cleaner including a cleaner body; and a dust collector provided in the cleaner body, wherein the dust collector includes a first cyclone provided within an outer case to filter foreign matter and dust from air introduced into the dust collector; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and a rotatable shell provided at a lower side of and surrounding the first cyclone so as to define a first storage section configured to collect foreign matter and dust filtered by the first cyclone between the rotatable shell and the outer case, wherein the rotatable shell includes a skirt having a plurality of steps arranged along a circumference of the rotatable shell.

A vacuum cleaner, including a cleaner body; and a dust collector provided in the cleaner body, wherein the dust collector includes a first cyclone provided within an outer case to filter foreign matter and dust from air introduced into the dust collector; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; a screw provided at a lower side of and surrounding the first cyclone, and having at least one vane spirally extended along a flow direction of the air introduced into the outer case to induce the inflow of foreign matter and dust filtered by the first cyclone into a first storage section.

A hand vacuum cleaner has a cyclone assembly comprising a first stage cyclone and a second stage cyclone. The cyclone assembly has an openable end moveable between a closed position and an open position, the openable end comprising a portion of the second stage dirt collection chamber. When the openable end is in the open position, the second stage dirt collection chamber is opened and when the openable end is the closed positon, the openable end contacts a sidewall of the second stage cyclone chamber and the second stage dirt collection region is closed.

The invention refers to a vacuum cleaner (10) comprising a housing (15) with first components arranged therein which interoperate with one another in order to realize a first air flow (42) for a vacuum cleaning functionality. The first components comprise a first electric motor (40) and a first turbine (38) actuated by the first electric motor (40) in order to create the first air flow (42) and a low-pressure in a dust collecting chamber (22) of the vacuum cleaner (10) provided with an inlet opening (24) in order to suck in dust and small particles into the dust collecting chamber (22). The vacuum cleaner (10) further comprises second components separate from the first components and the second components interoperate with one another in order to realize a second air flow (100) for a purifying functionality of dust-laden air surrounding the vacuum cleaner (10). The second components comprise a second electric motor (96), a second turbine (98) actuated by the second electric motor (96) in order to create the second air flow (100), and at least one air filter element (104) through which the second air flow (100) is drawn in order to filter out most of the dust contained in the dust-laden air of the second air flow (100).

A filter assembly (100) and a cleaner having the same are provided. The filter assembly (100) includes a tank (1) and an air intake pipe (2). The tank (1) is configured to accommodate a liquid therein and has an air inlet (13) and an air outlet (14). The air intake pipe (2) is connected to the air inlet, has an air output end (22) located in the tank (1) and extending towards the liquid (A) or submerged in the liquid (A), and has a cross sectional area gradually increased along a fluid flow direction inside the air intake pipe (2).

The invention discloses a system for vacuuming waste having a motor module and a waste module. The motor module has an open receiving area, motor, battery, vacuum tube receiving area and handle. Multiple bag hooks are spaced along the open receiving area. Disposable bags, having a drawstring within a channel, are placed within the waste module. The drawstring has a length greater than the bag perimeter to form multiple bag loops that extend through gaps in the channel. An insert maintains the bags in an open position. The bag loops are placed on the bag hooks so that when the motor module is opened, the drawstring pulls the bag closed.

A low profile upright surface cleaning apparatus comprises an air flow duct which has a length in a lateral direction that is transverse to the central longitudinal axis (front to back) of the surface cleaning head that is greater than a depth of the air flow duct in a direction of the central longitudinal axis.

This document describes a mobile cleaning robot including a chassis having a forward portion and an aft portion; a blower affixed to the chassis; a bin supported by the chassis and configured to receive airflow from the blower, the chassis enabling evacuation of the bin through a bottom of the robot. The bin includes a top, a bottom, a sidewall, and an internal barrier. The bin includes a first volume and a second volume separated by the internal barrier and a filter unit supported by the internal barrier and removably disposed in an airflow path between the first volume that includes an intake port in the bin and the second volume that includes an exhaust port in the bin.

An autonomous floor cleaning robot includes a transport drive and control system arranged for autonomous movement of the robot over a floor for performing cleaning operations. The robot chassis carries a first cleaning zone comprising cleaning elements arranged to suction loose particulates up from the cleaning surface and a second cleaning zone comprising cleaning elements arraigned to apply a cleaning fluid onto the surface and to thereafter collect the cleaning fluid up from the surface after it has been used to clean the surface. The robot chassis carries a supply of cleaning fluid and a waste container for storing waste materials collected up from the cleaning surface.