Abstract: An upright surface cleaning apparatus comprises a surface cleaning head a cleaning unit moveably mounted to the surface cleaning head between a generally upright position and a rearwardly inclined in use position, a push handle and an above floor cleaning assembly. The above floor cleaning assembly comprises a flexible conduit having an inlet end and an outlet end, wherein in a floor cleaning mode the above floor cleaning assembly is positioned between a front transverse plane that extends transverse to the central longitudinal axis of the surface cleaning head and is located at the front side of the cleaning unit and a rear transverse plane that extends transverse to the central longitudinal axis and is located at the rear side of the cleaning unit.

Abstract: 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.

Abstract: An upright surface cleaning apparatus has a surface cleaning head, a cleaning unit moveably mounted to the surface cleaning head between a generally upright position and a rearwardly inclined in use position and a push handle. The cleaning unit comprises a support structure and an air treatment member assembly, wherein the support structure is positioned rearward of a front face of the air treatment member assembly when the cleaning unit is in the generally upright position. The push handle comprises a longitudinally extending member and is mounted to the support structure and a portion of the air treatment member assembly extends rearward of the longitudinally extending member when the cleaning unit is in the generally upright position.

Abstract: An all in the head surface cleaning apparatus includes a surface cleaning head having a lower surface having a dirty air inlet. The surface cleaning head may include a brush motor drivingly connected to a movable brushing member having a brush motor axis. The surface cleaning head may include a cyclone comprising a cyclone chamber having a longitudinal cyclone axis. The surface cleaning head may include a suction motor having a first end, a second end and a suction motor axis extending between the first and second ends. The surface cleaning head may include a bleed valve having an inlet end, an outlet end and a body extending between the inlet and outlet ends. The body may have a bleed valve axis. The bleed valve axis may be generally parallel to at least one of the cyclone chamber axis, the suction motor axis and the brush motor axis.

Abstract: An all in the head surface cleaning apparatus may have a surface cleaning head including a front end, a rear end, first and second laterally opposed sidewalls. The surface cleaning head may include a cyclone assembly comprising a cyclone chamber and a dirt collection chamber. The cyclone chamber may have a longitudinal cyclone axis, a cyclone assembly air inlet port and a cyclone assembly air outlet port. The cyclone assembly may be moveable from a cleaning position to a cyclone assembly removal position. The surface cleaning head may include a biasing member biasing the cyclone assembly away from the cleaning position, and a suction motor having a suction motor air inlet and a suction motor axis. The apparatus may include an upper portion moveably mounted to the surface cleaning head between a storage position and a floor cleaning position, the upper portion comprising a drive handle.

Abstract: A surface cleaning apparatus has a cyclone chamber provided in an air flow path. The cyclone chamber has a screen assembly with an outlet section, a longitudinally spaced apart distal section and a longitudinally extending porous section. The outlet section includes a non-porous member extending longitudinally inwardly an outlet section length from an outlet end of the outlet section to a longitudinally inwardly positioned inlet end of the outlet section. The outlet end of the outlet section overlies a cyclone air outlet. The porous section extends longitudinally inwardly from an outlet end of the porous section that is located at the inlet end of the outlet section. The inlet end of the outlet section has a width in a direction transverse to the longitudinal direction that is greater than a width of the outlet end of the porous section in the transverse direction.

Abstract: A surface cleaning apparatus is provided wherein at least one of an upstream air plenum that is positioned upstream of the pre-motor filter, and a downstream air plenum that is positioned downstream of the pre-motor filter comprises an end wall spaced from the pre-motor filter and comprises a first portion having an air flow port and a second portion proximate the outer perimeter of the pre-motor filter, wherein the first portion and the second portion meet at a first juncture that extends at an angle to the first portion and the second portion.

Abstract: A surface cleaning apparatus has a cyclone chamber provided in an air flow path. The cyclone chamber has a screen assembly with an outlet section, a longitudinally spaced apart distal section and a longitudinally extending porous section. The outlet section includes a non-porous member extending longitudinally inwardly an outlet section length from an outlet end of the outlet section to a longitudinally inwardly positioned inlet end of the outlet section. The outlet end of the outlet section overlies a cyclone air outlet. The porous section extends longitudinally inwardly from an outlet end of the porous section that is located at the inlet end of the outlet section. The outlet section length is at least as long as the cyclone outlet port length.

Abstract: A cyclone assembly for a surface cleaning apparatus has two cyclonic stages wherein the second cyclonic cleaning stage comprises a second stage dirt collection region and at least a portion of the second stage dirt collection region is positioned longitudinally above and overlying a first stage cyclone chamber.

Abstract: A surface cleaning apparatus has a cyclone chamber provided in an air flow path. The cyclone chamber has a screen assembly with an outlet section, a longitudinally spaced apart distal section and a longitudinally extending porous section. The outlet section includes a non-porous member extending longitudinally inwardly an outlet section length from an outlet end of the outlet section to a longitudinally inwardly positioned inlet end of the outlet section. The outlet end of the outlet section overlies a cyclone air outlet. The porous section extends longitudinally inwardly from an outlet end of the porous section that is located at the inlet end of the outlet section. The distal section has a distal section length in the longitudinal direction that is greater than the cyclone outlet port length.

Abstract: A cyclone assembly for a surface cleaning apparatus has a first cyclonic cleaning stage having a first end moveable between a closed position in which a first stage cyclone chamber and a first stage dirt collection chamber are closed and an open position in which the first stage cyclone chamber and the first stage dirt collection chamber are open, and a second cyclonic cleaning stage having a second end moveable between a closed position in which a plurality of second stage cyclone chambers and at least one second stage dirt collection chamber are closed and an open position in which the second stage cyclone chambers and the second stage dirt collection chamber are open.

Abstract: A cyclone assembly for a surface cleaning apparatus has an openable lower end, a first cyclonic cleaning stage, a second cyclonic cleaning stage, and an airflow passage from the first cyclonic cleaning stage to the second cyclonic cleaning stage. The lower end is moveable to an open position in which at least a portion of the air flow passage is opened.

Abstract: A cyclone assembly includes a first cyclonic cleaning stage. The first cyclonic cleaning stage includes at least one first stage cyclone having a first stage cyclone chamber. Each first stage cyclone chamber has a height extending between a first stage cyclone chamber air inlet and a first stage cyclone dirt outlet. The cyclone assembly also includes a second cyclonic cleaning stage downstream from the first cyclonic cleaning stage. The second cyclonic cleaning stage includes a plurality of second stage cyclones in parallel. Each of the plurality of second stage cyclones has a height extending between a second stage cyclone chamber air inlet and a second stage cyclone dirt outlet. The second cyclonic cleaning stage has a larger number of second stage cyclones than the first cyclonic cleaning stage, and the height of each second stage cyclone chamber is greater than the height of each first stage cyclone chamber.

Abstract: A surface cleaning head has a cyclone assembly with a cyclone assembly air inlet port and a cyclone assembly air outlet port, a first air flow path extending from a dirty air inlet to the cyclone assembly air inlet port, and a second air flow path extending from the cyclone assembly air outlet port to a suction motor air inlet. The cyclone assembly moveable from a cleaning position in which the cyclone assembly air inlet port is in communication with an outlet port of the first air flow path and cyclone assembly air outlet port is in communication with an inlet port of the second air flow path to a removal position in which the cyclone assembly air inlet port is spaced from the outlet port of the first air flow path and cyclone assembly air outlet port is spaced from the inlet port of the second air flow path.

Abstract: A hand vacuum cleaner may include a suction motor and fan assembly that is positioned downstream of a pre-motor filter. A post motor filter may be positioned downstream of the suction motor and fan assembly and may be in the lower end of the hand vacuum cleaner and an energy storage member may be in an upper end of the handle.

Abstract: A hand vacuum cleaner may include a suction motor and fan assembly that is positioned downstream of a pre-motor filter and in an upper end of the hand vacuum cleaner. A post motor filter may be positioned downstream of the suction motor and fan assembly and may be in the lower end of the hand vacuum cleaner. The clean air outlet may be positioned below the suction motor and fan assembly whereby air may travel generally downwardly from the suction motor and fan assembly and through the post motor filter to the clean air outlet.

Abstract: A hand vacuum cleaner may have an air treatment member and a pre-motor filter downstream from the air treatment member. A suction motor and fan assembly may be is positioned downstream of and below the pre-motor filter, a post motor filter may be positioned downstream of the suction motor and fan assembly and in the lower end of the hand vacuum cleaner. A clean air outlet may be positioned below the suction motor and fan assembly whereby air travels downwardly from the suction motor and fan assembly and through the post motor filter to the clean air outlet.

Abstract: A hand vacuum cleaner has a handle provided at the rear end of the hand vacuum cleaner, the handle having a hand grip portion that extends upwardly and forwardly. An energy storage member is positioned above and overlying the hand grip portion, a suction motor and fan assembly that is positioned forward of the hand grip portion and a clean air outlet positioned rearward of the suction motor and fan assembly.

Abstract: A hand vacuum cleaner can include an air inlet conduit having an inlet conduit axis, a suction motor and fan assembly having a suction motor axis of rotation, and an air treatment member. The handle has a hand grip portion that extends upwardly and forwardly and the suction motor is positioned forward of the hand grip portion.

Abstract: A hand vacuum cleaner with a vertically extending flat filter is provided. A hand vacuum cleaner with a suction motor forward of the pre-motor filer is also provided.