A filter mounting assembly for use with a structure having front and interconnecting side faces surrounding an air intake opening. The assembly includes at least one L shaped member adapted to be secured to either of the front or side faces of the structure on either side of the intake opening. A track is secured to each of the members so that an interior accessible channel of each track is arrayed in opposing fashion on opposite sides of the opening forward of the front intake face. A plurality of rollers are contained within each of the rails, the rollers each further including a forward extending hook portion projection from the interior track channels. A covering is provided having a plurality of side edge proximate located eyelets, the hook portions engaging through the eyelets for supporting the covering over the opening.

An air brake filter assembly and methods are shown. Example configurations include a filter lock that holds an indicator in an actuated position after a filter has become clogged. Example configurations may also include a bypass pathway to allow air to bypass the filter when the filter is clogged.

An air filter housing (200) for an air filter arrangement in a vehicle, the air filter housing being configured for receiving unfiltered air and outputting filtered air by passage of the air through an air filter unit (100). The air filter housing (200) forms a filter cavity (201) configured to house said air filter unit (100), and the air filter housing (200) comprises support member (300) being fixedly arranged in the filter cavity (201). The support member (300) comprises a filter holder portion (301) for holding said air filter unit (100) in a use position, in which use position the complete filter holder portion (301) is located inside said filter cavity (201).

An indoor unit for an air-conditioning apparatus includes a cartridge provided to an air inlet so as to be freely mountable and dismountable. The cartridge accommodates a filter so as to be freely movable in a fore-and-aft direction and has an opening port formed in one end portion in the fore-and-aft direction. A dust box is provided on a side of the end portion of the cartridge. The dust box includes a cleaning mechanism configured to clean the filter and a dust collecting portion configured to collect dust.

In an assembly for controlling filtering of vacuum air flow evacuated from a system storage container through an air evacuation duct in vacuum operated waste collection systems, an assembly housing is installed stationary in the air evacuation duct with an inner passage in the assembly housing communicating with the air evacuation duct, a control unit is installed in the assembly housing with a shiftable member intersecting the inner passage in the housing, whereby the shiftable member has one or more air filtering elements and the air filtering element being movable in a direction generally transversal to the inner passage in the assembly housing.

A compressor system includes a compression module having an inlet for receiving air; and a filter housing in fluid communication with the compression module. The filter housing is constructed to house a filter, the filter having a sealing feature disposed at a first end of the filter and having an engagement feature disposed at a second end of the filter opposite the first end. The filter housing includes a trap door constructed to contact the engagement feature, and constructed to drive the engagement feature in a direction parallel to an axis of the filter toward the sealing feature and urge the sealing feature into sealing engagement with the filter housing.

A filtration unit (1) comprising a support (10) arranged to receive a plurality of filter cartridges (11,11), the support configured to allow a displacement of the cartridges between a working position (70), in which a first filter cartridge (11) is arranged with own inlet/outlet apertures (71,71) in communication with a fluid inlet and outlet line portions (7,8), respectively, and at least one standby position (75) configured for receiving a respective second filter cartridge (11), an exchange mechanism (12) configured for causing the displacement of the cartridges between the at least one standby position and the working position, a differential pressure sensor (80) configured for measuring a pressure drop through first filter cartridge arranged in the working position and for generating a differential pressure signal (286) responsive to the pressure drop, a control unit (90) configured for receiving the differential pressure signal (86) and for providing an actuation signal (287) of the exchange mechanism, a program means resident in the control unit (90) and configured for generating the actuation signal (287) when the differential pressure signal indicates a pressure drop value exceeding a predetermined lower threshold value. This way, it is possible to arrange a clean filter cartridge in the at least one standby position, ready to be displaced to the working position in replacement of first filter cartridge, and the at least one second clean filter cartridge is transferred to the working position upon exceeding the differential pressure threshold value, remarkably limiting filter maintenance time and costs in a complex fluid distribution network.

A compressor system includes a compression module having an inlet for receiving air; and a filter housing in fluid communication with the compression module. The filter housing is constructed to house a filter, the filter having a sealing feature disposed at a first end of the filter and having an engagement feature disposed at a second end of the filter opposite the first end. The filter housing includes a trap door constructed to contact the engagement feature, and constructed to drive the engagement feature in a direction parallel to an axis of the filter toward the sealing feature and urge the sealing feature into sealing engagement with the filter housing.

Apparatuses, systems, and methods operable to reduce catalyst fouling by removing solid particulates from a heated fluid stream upstream of a catalyst using one or more flue gas strainer apparatuses that may be cleaned or serviced without ceasing or disrupting heating or catalytic operations. The flue gas strainer apparatuses may include a housing having a front end and a back end, the housing comprising a receiving portion, an outer edge, an inner edge, and an inner bore extending from the front end to the back end of the housing along the inner edge. The inner bore is operable to allow a heated fluid stream to pass therethrough. The flue gas strainer apparatus may also include a moveable strainer portion comprising one or more removable mesh portions. Each of the one or more removable mesh portions may have a plurality of pores and configured to capture solid particulates suspended in the heated fluid stream. The one or more removable mesh portions may be operable to be removingly received in the receiving portion of the housing.

Embodiments of the invention can sample particulates, aerosols, vapors, and/or biological components of ambient air utilizing spherical air-sampling filters. Components of the embodiments may include a hopper for holding spherical air-sampling filters, an air-sampling manifold configured to deliver an air-sampling filter from the hopper to a sampling location, and an air compressor to perform an air sampling operation and to transport a used air-sampling filter away from the sampling location. Operation of some embodiments may begin by rotating a slotted drum within the air-sampling manifold to deliver an air-sampling filter from the hopper to the sampling position. Operation may continue by using the air compressor to draw air from an ambient environment through the air-sampling filter. After sampling is complete, the air compressor may be utilized to pneumatically transport the used air-sampling filter away from the sampling position to a filter retrieval location via an output tube.