Abstract: A surface cleaning apparatus comprises a cyclone having an open end dirt outlet and a plate facing the open end, the height of a gap between the plate the open end is not constant.

Abstract: An upright surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet, a surface cleaning head having the dirty air inlet, a support structure moveably mounted to the surface cleaning head, the support structure comprising a cleaning unit The cleaning unit comprises a suction motor and an air treatment member positioned in the air flow path The cleaning unit is removably mountable wherein the cleaning unit is retained on the support structure when in a storage position under the influence of gravity.

Abstract: A hand surface cleaning apparatus comprises at least one cyclone and at least one dirt collection chamber The dirt collection chamber may be removable from the surface cleaning apparatus as a sealed unit for emptying and/or the dirt collection chamber may be removable with the nozzle.

Abstract: An indoor vacuum cleaner comprises a dirty air inlet, a handle, a cyclone separator having an outer wall, a fluid inlet downstream from the dirty air inlet and a fluid outlet, a plate having a cyclone chamber surface and positioned to substantially divide the cyclone separator into a cyclone chamber and a dirt collection chamber, each of the cyclone chamber and the dirt collection chamber having an outer wall, the outer wall of each of the cyclone chamber and the dirt collection chamber having an outer perimeter, the dirt collection chamber having a cyclone chamber end spaced from a dirt collection floor, a passage extending between the cyclone chamber and the dirt collection chamber, the passage configured such that separated dirt travels at least outwardly as the dirt travels through the passage and, an air flow motor.

Abstract: A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. A transition member is provided adjacent the end of the cyclone casing distal to the fluid inlet. The transition member has an inner surface the extends inwardly between the sidewall and the distal end.

Abstract: A household appliance incorporating an electrolyzer for electrolysis of water to H2 and O2 and an electrolyzer therefor. The appliance may include a burner for the hydrogen produced and an electric conductive member to provide household current to the electrolyzer. The electrolyzer comprises an outer housing defining a chamber which houses at least one cathode and at least one anode. The electrolyzer may comprise a plurality of field electrodes and the field electrodes may comprise first and second field electrodes which are electrically connected together and spaced apart to define an intra cell gap. Field electrodes may then be spaced apart to define an inter cell gap between electrodes of adjacent field electrodes. At least one of the anode and cathode may be connected to an electrically conductive member that is molded in situ in the housing and at least some of the electrodes may be configured to dimensionally stabilize the electrodes during operation of the electrolyzer.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor is positioned in the air flow path. At least one cyclone chamber is positioned in the air flow passage. An associated dirt collection chamber is exterior to the cyclone chamber. The cyclone chamber and the suction motor are positioned side by side and have generally parallel longitudinal axes. The dirt collection chamber may surround part of the suction motor. Alternately, or in addition, a pre-motor filter having an enhanced surface area may be provided by configuring the pre-motor filter to extend outwardly of the pre-motor filter, such as by overlie part of the cyclone chamber or the dirt collection chamber.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor positioned in the air flow passage. A cyclone is removably mounted to the surface cleaning apparatus and positioned in the air flow path. The cyclone has a cyclone air inlet and a cyclone air outlet. The cyclone is mountable to the surface cleaning apparatus in a mounting direction. An air inlet seal is positioned in a first plane and seals the cyclone air inlet to the airflow passage. An air outlet seal is positioned in a second, non-orthogonal plane and seals the cyclone air outlet to the airflow passage. The air inlet seal and the air outlet seal are concurrently sealed by movement of the cyclone in the mounting direction.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor is positioned in the air flow path. At least one cyclone is positioned in the air flow passage. An associated dirt collection chamber is exterior to the cyclone. The cyclone and the suction motor are positioned side by side and have generally parallel longitudinal axes. The dirt collection chamber may surround part of the suction motor. Alternately, or in addition, a pre-motor filter having an enhanced surface area may be provided by configuring the pre-motor filter to extend outwardly of the pre-motor filter, such as by overlie part of the cyclone or the dirt collection chamber.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. The surface cleaning apparatus further comprises a cyclone comprising a cyclone air outlet and positioned in the air flow passage downstream of the dirty air inlet. A suction motor is provided in the air flow passage downstream of the cyclone. A pre-motor filter is upstream of the suction motor and downstream of the cyclone. The pre-motor filter has an upstream side and a downstream side. The surface cleaning apparatus further comprises a bleed valve having an air inlet and an air outlet. The air outlet is positioned between the suction motor and the downstream side of the pre-motor filter and facing the downstream side of the pre-motor filter.

Abstract: An upright surface cleaning apparatus comprises a floor cleaning head having a dirty air inlet, and an air flow passage extending from the dirty air inlet to a clean air outlet. An upright section is moveably mounted to the surface cleaning head between a storage position and an in use position. The upright section comprises a filtration member and a suction motor provided in the air flow passage. The suction motor has an air inlet end, an opposed distal end, and an air inlet direction. The upright section further comprises a motor housing. The motor housing comprises a motor section in which the suction motor is provided. The motor section has a first end at the air inlet end of the suction motor and an opposed second end at the distal end of the suction motor. An openable post motor filter chamber is provided in the motor housing and has an inlet end and an outlet end. At least a portion of the filter chamber is provided in the motor section.

Abstract: An upright surface cleaning apparatus is operable in a floor cleaning mode and an above floor cleaning mode. The surface cleaning apparatus includes a first upstream air flow path extending from the dirty air inlet of the floor cleaning head to a downstream air flow path, and an above floor cleaning member removably mounted to the surface cleaning apparatus. The above floor cleaning member includes an alternate dirty air inlet. The surface cleaning apparatus also includes a second upstream air flow path extending from the dirty air inlet of the above floor cleaning member to the downstream air flow path. The surface cleaning apparatus also includes a valve selectively connecting the first upstream air flow path in flow communication with the downstream air flow path when the dirty air inlet of the above floor cleaning member is placed in a storage position on the upright surface cleaning apparatus.

Abstract: A surface cleaning apparatus comprises an air flow passage extending from a dirty air inlet to a clean air outlet. A suction motor is positioned in the air flow path. At least one cyclone chamber positioned in the air flow path. An associated dirt collection chamber is optionally exterior the cyclone chamber. A pre-motor filter is positioned downstream of the cyclone chamber and upstream of the suction motor. The pre-motor filter has an upstream side and a downstream side. The pre-motor filter may overlie at least a portion of the suction motor and the cyclone chamber.

Abstract: An upright surface cleaning apparatus comprises a floor cleaning head having a dirty air inlet and an upright section moveably mounted to the surface cleaning head. The surface cleaning apparatus also includes an air flow passage extending from the dirty air inlet to a clean air outlet. The air flow passage includes a conduit section. The surface cleaning apparatus also includes a suction motor and an air treatment member positioned in the air flow passage, provided in one of the floor cleaning head and the upright section. The conduit section has an inlet end and an outlet end. The inlet end is rotatably connected to the air flow passage about an axis parallel to air flow through the inlet end, and the outlet end is rotatably connected to the air flow passage about an axis parallel to air flow through the outlet end.

Abstract: A surface cleaning apparatus comprises a floor cleaning head having a dirty air inlet, a cleaning brush and a brush motor. An air flow passage extending from the dirty air inlet to a clean air outlet. An upper section is moveably mounted to the surface cleaning head between an storage position and an in use position. The upper section comprises a cleaning unit including a suction motor positioned in the air flow passage. At least one of the upper section and the cleaning unit is removably mounted to the floor cleaning head in a preset orientation. When the surface cleaning apparatus is assembled, the cleaning unit is spaced from the floor cleaning head. An alignment member is provided on the surface cleaning apparatus. The alignment member requires the one of the upper section and the cleaning unit to be in the preset orientation when mounted on the floor cleaning head. An electrical conductive member is electrically connected to the brush motor and releaseably electrically connected to the cleaning unit.

Abstract: The surface cleaning apparatus includes a cyclone positioned in am air flow passage. The cyclone has a cyclone air inlet and a cyclone air outlet, a dirt outlet spaced from the cyclone air inlet, a cyclone chamber wall and a longitudinal axis. The surface cleaning apparatus also includes a dirt collection chamber in communication with the dirt outlet. The dirt collection chamber has an openable wall mounted to the surface cleaning apparatus by a hinge and a centrally positioned longitudinal axis, the openable wall has a centre and a hinge side. The surface cleaning apparatus also includes a plate positioned at an interface of the dirt collection chamber and the cyclone. The plate is moveably mounted to the openable wall. The surface cleaning apparatus also includes a biasing member biasing the plate towards the hinge side of the openable wall a suction motor positioned in the air flow passage.

Abstract: An upright surface cleaning apparatus has a front end, a rear end and opposed lateral sides and a surface cleaning head having a dirt inlet and rear wheels. The rear wheels have an axis of rotation and a radius. The surface cleaning apparatus also includes an upper section and an upper section mount. The upper section mount movably mounts the upper section to the surface cleaning head at a position forward of the axis of rotation of the rear wheels. The surface cleaning head is movable between an floor cleaning position and a storage position. The surface cleaning apparatus includes an air flow path extending from the dirt inlet to a clean air outlet with a suction motor and a treatment member provided in the air flow path. The air flow path comprises a hose extending between the surface cleaning head and the upper section.

Abstract: A cyclonic surface cleaning apparatus incorporates a series of sequential physical filtration members to progressively remove smaller particulate matter whereby the physical filtration members collectively have a longer in use time prior to being clogged, thereby permitting a longer operating time prior to the cleaning or replacement of the physical filtration members.

Abstract: A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. The first end is provided with a fluid inlet and the second end is provided with a dirt outlet. The dirt outlet provides a lateral outlet to a dirt collection chamber in communication with the cyclone chamber via the dirt outlet. The dirt outlet is positioned from about 90 to about 330° around the cyclone casing in a flow direction from the fluid inlet.

Abstract: A surface cleaning head, such as an auxiliary cleaning head for a vacuum cleaner, has a rotary brush associated with a dirty air inlet and driven by an air turbine. A dirt tray is positioned in the airflow path downstream of the rotary brush. In one embodiment, the air turbine is in an air turbine chamber that is not downstream from the dirty air inlet.