Dust separation devices are disclosed to enable separating and collecting dust particles. A parabolic cyclone chamber is disclosed. The parabolic cyclone chamber has a bottom having an opening, an upper surface, a curved sidewall connecting the bottom to the upper surface, an entry path in a top portion of the cyclone chamber, an exit path extending through the upper surface, and a diverter wall sloping downward from the upper surface of the cyclone chamber toward the entry path.

A surface cleaning apparatus has a cyclone chamber having a longitudinal cyclone axis of rotation wherein the dirt outlet is defined by a gap between the sidewall of the cyclone and a plate positioned at the dirt outlet end of the cyclone, which gap extends around all of the perimeter of the plate. The plate is stepped in the axial direction.

The Air Filtration Device of this invention is a highly efficient air cleaner that utilizes spinning air at high speed to separate out and remove dirt particles from an air flow such as intake air taken ingested by internal combustion engines. This Device it is well-suited for use with both normally-aspirated engines and turbocharged engines. This Device is superior to current automotive air cleaners that filter out dirt by use of a screen or porous media since it never becomes clogged as dirt is filtered from raw intake air. Additionally, the dirt separation tube of this invention allows proper engine intake flow and, among other applications, efficiently removes the specific sizes of dirt particles that can be ingested in off-road and highway vehicle operations.

A wet/dry vacuum (1) having a bottom vertical discharge (13) located on a collection tank (2) and an elevated rolling stand (14) that allows the wet/dry vacuum and collection tank to be rolled over a bucket or toilet and emptied of any collected liquids. A strainer 13 and hinged attachment to the stand allows a user to easily empty hard debris from the wet/dry vacuum by simply tipping the collection tank over from its elevated position into a trash can.

A rotary separator may comprise a drum configured to rotate, a pickup member extending into the drum, comprising a pickup channel having a first inlet for receiving a liquid, and a pitot channel having a second inlet for receiving the liquid. The liquid exits the drum through the pickup channel in response to a pressure of the liquid being measured through the pitot channel. A valve may be coupled to the pickup channel. A pressure sensor may be coupled to the pitot channel.

A rotary separator may comprise a drum configured to rotate, a pickup member extending into the drum, comprising a pickup channel having a first inlet for receiving a liquid, and a pitot channel having a second inlet for receiving the liquid. The liquid exits the drum through the pickup channel in response to a pressure of the liquid being measured through the pitot channel. A valve may be coupled to the pickup channel. A pressure sensor may be coupled to the pitot channel.

Disclosed are a pollutant capturer and mobilizer and method of mobilizing a polluted gaseous substance from one location towards another location and capturing one or multiple types of polluting substances, such as CO.sub.2, from an atmospheric body of polluted gaseous substance or from exhaust of vehicles, chimneys, or stacks and thereby combat the negative health, environmental, and economic impacts of the of the polluting substances on communities. Wet or dry embodiments of the pollutant capturer and mobilizer utilize wet or dry pollutant capturing components, respectively, to capture one or multiple types of polluting substances from a body of polluted gaseous substance. Flow-establishing devices can be used to set the body of polluted gaseous substance in motion through the pollutant capturing component. The pollutant capturer and mobilizer may also be mounted on any type of vehicle, with or without using flow-establishing devices.

A buckle mechanism of a dust collecting barrel of a two-stage dust collector is provided. The buckle mechanism is disposed on the two-stage dust collector, and includes a first retaining seat and a second retaining seat corresponding to one side of the dust collector, and a support unit is disposed on a barrel cover. The first retaining seat is pivotally connected with a linking unit. One end of the linking unit is connected to the support unit. The second retaining seat is pivotally connected with a control unit. The linking unit is driven to actuate through two connecting members. The control unit drives the linking unit to actuate. By the lever principle, the linking unit drives the barrel cover to move up and down so as to assemble and disassemble the dust collecting barrel quickly and conveniently.

An effluent processing apparatus is provided for a vehicle air brake charging system. The effluent processing apparatus comprises an inlet port through which effluent from a purge valve of an air dryer can be received and an outlet port. The effluent processing apparatus further comprises a quadric surface defining an effluent flow chamber that is connected in fluid communication between the inlet port and the outlet port. The quadric surface is provided for extracting contaminants from an effluent stream as the effluent stream flows from the inlet port along the quadric surface to the outlet port.

An effluent processing apparatus is provided for a vehicle air brake charging system. The effluent processing apparatus comprises an inlet port through which effluent from a purge valve of an air dryer can be received and an outlet port. The effluent processing apparatus further comprises a quadric surface defining an effluent flow chamber that is connected in fluid communication between the inlet port and the outlet port. The quadric surface is provided for extracting contaminants from an effluent stream as the effluent stream flows from the inlet port along the quadric surface to the outlet port.