A surface cleaning apparatus comprises an air treatment chamber having a first end, an axially opposed second end, an axis extending between the first and second axially opposed ends and an axially extending air treatment chamber sidewall. The air treatment chamber air outlet is provided at the second opposed end and the first opposed end is moveably mounted between a closed position and an open position in which the air treatment chamber is open. The air treatment chamber has a stationary portion and an openable portion and the openable portion is moveably mounted between a closed position and an open position in which the air treatment chamber is open. When the openable portion is in the closed position, the openable portion and the stationery portion abut along peripheral edges that extend along a length of the air treatment chamber sidewall.

A hand vacuum cleaner has a main body having an upper end having a dirty air inlet conduit and a handle. The handle has a hand grip portion that extends upwardly and forwardly. An assembly comprising an air treatment member and a pre-motor filter media is removably mounted to the main body.

A invention relates to a filter device for a vacuum cleaner having a turbine device and a motor for generating a first main air stream and/or a second main air stream through a collecting tank of the vacuum cleaner, wherein the vacuum cleaner includes two chambers and filter elements of the filter device are dedusted by an abrupt change in position of a pressure shock element in the chambers. Since, when one of the two chambers is being dedusted, the suction operation of the vacuum cleaner can be maintained through the other chamber, the filter dedusting can advantageously take place during continued suction operation of the vacuum cleaner. A method for dedusting a filter device in a vacuum cleaner, wherein, as a result of a valve being actuated, an air volume is driven out of one of the two chambers. As a result of this change in pressure, the pressure shock element is advantageously made to change position, and this can result in a backflushing pulse and mechanical shaking of the filter element, and dedusting of the filter device.

The present invention discloses a self-propelled cleaning machine of which a control module controls a driving device to prompt a dust compressing member mounted in a dust box to be at a compressing position or a non-compressing position. The dust compressing member of the self-propelled cleaning machine is capable of compressing trash in the dust box to keep the compressed trash within a specific space inside the dust box, thereby achieving an effect of reducing the number of times that a user has to clear the dust box.

An upright surface cleaning apparatus comprises a floor cleaning head and an upright section moveably mounted to the surface cleaning head. The upright section has a filtration member housing and a suction motor housing. The filtration member housing has a filtration member, an air inlet, an air outlet, an openable top wall and an openable bottom wall and the suction motor housing has a suction motor and an open top. A pre-motor filter is removably receivable in the open top of the suction motor housing. The filtration member housing is removably positionable on the suction motor housing and the filtration member housing seals the open top of the suction motor housing when the filtration member housing is positioned on the suction motor housing whereby the pre-motor filter is revealed when the filtration member hosing is removed. When the filtration member housing is positioned on the suction motor housing, the air outlet of the filtration member housing faces an upstream surface of the pre-motor filter.

A filter device for a vacuum cleaner. The filter device has two chambers, of which in each case at least one participates in suction operation of the vacuum cleaner, while a filter element of the other chamber can be dedusted. As a result, while one filter element is being dedusted, suction operation can be maintained through the other chamber of the vacuum cleaner. This advantage is allowed by an elastic membrane, which can change shape and/or move when the chamber to be dedusted is ventilated. The ventilation is effected by a pressure equalizing stream which can pass through a ventilation channel and a ventilation opening into the chamber to be dedusted. As a result of the movement and/or change in shape of the elastic membrane, a dedusting pulse is applied to the filter element, which can ensure, for example, that a solid filter cake is detached and drops into the dust collecting tank of the vacuum cleaner. A method for dedusting a filter device in a vacuum cleaner is also provided.

An upright extractor has an upright section moveably mounted to a surface cleaning head. The upright section has a wand and hose assembly and a liquid separator. The liquid separator comprises a solid collection chamber that is separated from a liquid collection chamber by a porous divider. The upright extractor is operable in a floor cleaning mode in which the handle is a driving handle of the upright extractor. The upright extractor is also operable in an above floor cleaning mode in which the inlet end of the wand is disconnected from fluid flow communication with the surface cleaning head dirty fluid inlet and an above floor air flow path extends from the inlet end of the wand to the clean air outlet and the liquid separator and the suction motor are provided in the above floor cleaning air flow path.

A vacuum cleaner includes an upright body mounted to a base that moves over a surface to be cleaned. A rotational coupling can be provided between the upright body and the base for coupling the upright body to the base for movement about at least one rotational axis. The rotational coupling can include at least a swivel joint. A cord rewinder can be provided above the swivel joint for storing and dispensing a power cord.

A floor cleaner including a recovery tank. The recovery tank includes a tank body having a lower end wall, an open upper end, and a sidewall that extend upwardly from the lower end wall. A cover that includes a suction air outlet in fluid communication with a vacuum source. An inlet duct extends upwardly from the lower end wall. The recover tank includes a shutoff float including a float body and a closure. The float body is configured to float on a surface of cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet. The float body moves along the inlet duct as the float body floats on the surface of the cleaning fluid. The float body includes an aperture extending through the float body and the inlet duct extends through the aperture of the float body.

A surface cleaning apparatus includes first and second pre-motor filters that are in parallel.