The present disclosure relates to a filter housing having a bowl and a head. The bowl is configured to house a portion of a filter cartridge. The bowl has an annular groove disposed about a rim of the bowl. The head is configured to mate with the bowl. The head includes an inlet, outlet, and a pair of levers. The inlet is to receive a flow of fluid into the filter housing. The outlet is to release the flow of fluid from the filter housing. The pair of levers are to draw the bowl partially into the head. Each lever has a first arm configured to mate with the annular groove, a second arm having a bearing surface, and a pivot disposed between the first arm and the second arm. A force upon the bearing surface urges the bowl into the head to form a seal.

A reusable filter encasement for air handlers of grow rooms is described. The encasement amounts to a housing configured to contain a filter which is designed to be replaced at regular intervals in order to ensure adequate clean air flow within the growing facility. The housing is preferably equipped with a quick access mechanism such as zippers and/or hook-and-loop fasteners, which enable to easy exchange of filters by a single technician, rather than requiring additional assistance. Straps are preferably present within the housing to further ensure that the filter remains in the correct seated position. Clasps are present on the straps to facilitate access to the filter after the housing has been opened via the zippers and/or hook-and-loop fasteners.

An end cap assembly comprises a first connector element comprising at least two snap arches, each snap arch including a snap tooth lock; and at least two snap arms each including a snap tooth; the first connector element having a central cavity closed off with a wall, or having a central opening with side walls having an internal thread; a second connector element comprising at least two snap arches, each connector snap arches including a snap tooth lock; and at least two snap arms, each of the at least two snap arms including a snap tooth; the second connector element having a central opening, and an annular channel for receiving an end of a hollow cylindrical filter element; and, a gasket arranged between the first connector element and the second connector element, the gasket having a central opening; wherein the connector elements are lockably engageable with each other when placed in contact with each other and axial force is applied such that each first connector snap tooth is retained in each respective second connector snap tooth lock, and each second connector snap tooth is retained in each respective first connector snap tooth lock.

An annular filter element and sealing element for an oil separator of a crankcase ventilation system, the filter element has a covering surface extending parallel to a direction of flow, together with at least one cover element covering surface in at least some regions. An oil separator is taught having the filter element with at least one pressure control valve controlling crankcase pressure and has a valve closing body that operates in conjunction with a valve seat. The sealing element having at least one radially sealing region that is configured to act in the direction of the radius of the annular filter element, and at least one axially sealing region that is configured to act in the direction of the longitudinal axis of the annular filter element.

A dust extraction unit is disclosed including a first and a second air filter removable and mountable within the dust extraction unit and a body defining an air flow path which passes through the first and the second air filters when the first and the second air filters are mounted within the body of the dust extraction unit. The body of the dust extraction unit comprises a first portion operable to receive the first air filter and a second portion operable to receive the second air filter. The first and second portions are connected by a hinge so that the first portion is moveable between a first configuration in which the first and second portion define an air flow path though the dust extraction unit and a second configuration which provides access to the portion of the dust extraction unit operable to receive the second air filter.

An air filter assembly includes a pleated air filter media having an upstream surface, a downstream surface, a first side end, and a second side end; a wire netting adjoined to the downstream surface of the air filter media; and a graspable end member adjoined to each of the first and second side ends of the air filter media. The assembly further includes a frame configured to releasably retain the air filter media, the frame having first and second ends walls and first and second side walls; a closure assembly for securing the air filter media within the frame, the closure assembly comprising a spring-loaded fastener pivotably coupled to at least one of the first and second side walls and configured to fasten to at least one of the first and second end walls; and an efficiency grid retained within the frame.

A cover assembly and a power conversion device comprising the same are disclosed. The cover assembly according to an embodiment of the present disclosure is detachably coupled to an inverter device. The cover assembly communicates with the inside of the inverter device, and is coupled to the inverter device while covering a blower fan. Therefore, the blower fan is not exposed to the outside, and thus the blower fan can be prevented from being arbitrarily damaged, and introduction of dust and the like residing outside the inverter device into the inverter device can be prevented.

A filter housing includes a first end, an opposite second end and a peripheral side wall, all defining, in a combination with each other, a hollow interior of the housing. An air inlet is provided adjacent the first end and an air outlet is provided in the second end. The air inlet and air outlet are in open communication with the hollow interior. One or more openings are provided through the second end, being disposed between the air outlet and the peripheral side wall. A filter cleaning apparatus includes the filter housing, a hollow filter within the hollow interior and a nozzle within the hollow filter. The nozzle is designed to purge contaminates from the filter with pressurized fluid supply. The contaminates can be removed through one or more openings. The apparatus can be used as an air intake pre-cleaner or as a main air filter for internal combustion engine.

A sealing element (60) for an annular filter element (100) of an oil separator (200) of a crankcase ventilation system, wherein the annular filter element (100) is configured to separate oil from fluid. The sealing element (60) fulfills more than one sealing function and yet is easy to use and replace. The sealing element (60) having at least one radially sealing region (64) that is configured to act in the direction of the radius (120) of the annular filter element (100), and at least one axially sealing region (66) that is configured to act in the direction of the longitudinal axis (110) of the annular filter element (100).

A catalytic reactor comprises a filter unit which extracts and collects particles from the fluid flow stream above the reactor internals, the filter unit comprises elements which are safely, easily and quickly handled without the need for tools.