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 vacuum cleaner is described. The vacuum cleaner has a dirt inlet and a motor and fan for delivering suction to the dirt inlet. A cyclone unit separates particles from a suction flow. The cyclone unit has a vortex finder extending along a cyclone axis of rotation and an annular chamber formed around outside of the vortex finder. Air is delivered to the cyclone unit in a forward direction (i.e. in a direction from the dirt inlet to the cyclone unit). The cyclone axis of rotation is substantially parallel to the forward direction. An outlet from the vortex finder is at a backward end thereof such that the outlet is in an opposite direction to a forward component. A space beyond the vortex finder is a part of a dirt collection area, thus enabling a more effective collection of hairs and other debris.

The dust separation apparatus includes a dust intake unit including a blower, an inertial separation unit, a centrifugal separation unit, and a filtering separation unit. The dust intake unit, the inertial separation unit, the centrifugal separation unit, and the filtering separation unit are sequentially connected in series and together form a horizontal structure. The inertial separation unit and the centrifugal separation unit are connected in a horizontal-axis direction to form an inertial and centrifugal separation unit. A dust collection box is provided below and connected to the inertial and centrifugal separation unit. The filtering separation unit includes a dust collection barrel. The intelligent control system includes the dust separation apparatus and an intelligent control unit.

A dust sampling system including a dust sampler and a vehicle on which the dust sampler is placed. The dust sampler has a suction unit, a cyclone, a dust collection container, and an air intake conduit. The suction unit draws in air containing dust particles. The cyclone centrifugally separates the dust particles from the drawn-in air. The cyclone has an air input port, a particle discharge end, and an air output port connected to the suction unit. A dust collection container is positioned underneath the cyclone to receive the separated dust particles from the cyclone. The air intake conduit has an air inlet and an air outlet connected to the air input port of the cyclone. The suction unit draws in the air containing the dust particles into the air inlet of the air intake conduit while the vehicle moves to collect samples of fugitive dust from a road.

A ventilation module for a rail vehicle contains a housing having an air inlet, an air outlet, a dust discharge opening, a first cleaning station in an upper region of the housing, a cyclone separator which has a dust outlet and a cyclone air outlet. A second cleaning stage is disposed in a central region of the housing, which is arranged underneath the first cleaning stage such that air from the cyclone air outlet can reach the second cleaning stage. A dust discharge channel is connected to the dust outlet and is arranged in the central region. A dust discharge fan is set up to extract air and dust from the dust discharge channel and to remove the same through the dust discharge opening. A machine room fan is arranged in a lower region of the housing and is set up to extract air through the second cleaning station.

A cleaner comprising: a housing having the shape of a hollow cylinder, a barrier for dividing the inner space of the housing into an upper space and a lower space; a barrier through-hole provided so as to penetrate the barrier; an intake portion provided on the circumferential surface of the housing; an exhaust portion provided to penetrate the housing; a housing discharge port penetrating the bottom surface of the housing; a cover for closing the housing discharge port; an alien-substance separating portion provided in the lower space so as to provide a channel that guides air introduced to the intake portion to the barrier through-hole; a fan provided to comprise an impeller positioned in the upper space; a rotating shaft to which the impeller is fixed, and a motor for rotating the rotating shaft; and a storage portion provided to be attachable to/detachable from the housing.

The present invention relates to an apparatus and a method of cleaning particle loaded “dirty” air using a multi flow-splitter technology in combination with at least one cyclone system which requires minimal energy to operate due to low pressure drops used to generate the fluid flows whilst allowing to exert high centrifugal or G-Force on the infeed fluid stream. This further allows to operate the particle removal process such that conventional additional filter media become optional, such that the technology may operate a significantly reduced or even without the need for maintenance and/or repair. Low internal air turbulence ensures a very high separation efficiency. Optionally adding additional explosion safe low-energy down-stream filtration stages with variable speed system fan provides optimal operational performance and operational flexibility.

Exemplary embodiments are directed to pool cleaners that remove debris from water using a plurality of cyclonic flows, or that include a removable impeller subassembly, a check valve for a debris canister, a particle separator assembly having a handle that locks to the pool cleaner, a modular roller drive gear box, or a roller latch that secures a roller to the pool cleaner. Exemplary embodiments are also directed to the check valve and the roller latch themselves. Exemplary embodiments are directed to a filter medium for pool cleaners that includes embossments providing flow channels for water, and to roller assemblies for pool cleaners. Exemplary embodiments are directed to pool cleaners including alternative pump motor engagements. Exemplary embodiments are directed to pool cleaners power supplies that include a potted and contoured power board assembly, and to kickstands therefor. Exemplary embodiments are directed to a pool cleaner caddy, and removable wheels therefor.

A flexible electrode assembly for an air treatment device comprising: a flexible dielectric layer forming an insulating sheet; a plurality of conductive tracks on a first side of the insulating sheet; a conductive layer on a second side of the insulating sheet; wherein supply of voltage to the conducting tracks and the conductive layer generates plasma which is discharged from the conducting tracks. In a further aspect, the present invention also provides an air treatment apparatus for removal of health threatening airborne pollutants, which may include pathogens, from an air flow, the air treatment apparatus comprising an apparatus having a generally cyclonic-shaped geometry comprising a cylindrical section and a conical section. The present invention also relates to an air treatment device comprising the flexible electrode assembly.

Exemplary embodiments are directed to pool cleaners that remove debris from water using a plurality of cyclonic flows, or that include a removable impeller subassembly, a check valve for a debris canister, a particle separator assembly having a handle that locks to the pool cleaner, a modular roller drive gear box, or a roller latch that secures a roller to the pool cleaner. Exemplary embodiments are also directed to the check valve and the roller latch themselves. Exemplary embodiments are directed to a filter medium for pool cleaners that includes embossments providing flow channels for water, and to roller assemblies for pool cleaners. Exemplary embodiments are directed to pool cleaners including alternative pump motor engagements. Exemplary embodiments are directed to pool cleaners power supplies that include a potted and contoured power board assembly, and to kickstands therefor. Exemplary embodiments are directed to a pool cleaner caddy, and removable wheels therefor.