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| Number | Title | Issue Date |
| 7364602 | Air cleaner assembly An air cleaner assembly for use with a conventional household air conditioning system with a duct having an opening sized to receive a standard panel filter comprises a peripheral frame sized to be received within the opening in the return duct and sized to receive ... | 04/29/2008 |
| 7351274 | Air filtration system control An intense field dielectric air filtration system associated with an air conditioning unit includes a microprocessor based control system which may be connected to the thermostat of the air conditioning unit to energize the air filtration system in response to a cal... | 04/01/2008 |
| 7332019 | Air filtration system An air filtration system includable in and for HVAC equipment includes one or more intense field dielectric filter units and a field charging unit retained in a support structure or cabinet by a removable door which includes control circuitry and contactors engageab... | 02/19/2008 |
| 7326388 | Indoor air quality module with pivotal inner compartment for servicability of module components An indoor air quality module includes an ultraviolet light source located between two titanium dioxide coated honeycombs. Photons of ultraviolet light are absorbed by the titanium dioxide coating to form reactive hydroxyl radicals that attack and oxidize contaminant... | 02/05/2008 |
| 7261757 | Slip-rib filter gasketing There is provided a framed filter for insertion into a filter housing having a frame surrounding at least part of a filtration media with a fluid inlet face and a fluid outlet face, the frame comprising at least one longitudinally extending sidewall portion provided... | 08/28/2007 |
| 7258727 | Apparatus for separating particles from a flowing medium A separating apparatus which enables particles to be separated from a flowing medium by a preliminary separator which avoids the undesirably high pressure losses due to the flow resistance of known preliminary separators. The separating apparatus has a housing with ... | 08/21/2007 |
| 7258715 | Air cleaner An improved filter element for use in an electrostatic precipitation air cleaning device, the filter element including rod electrodes arranged through a stack of alternating fluted plastic sheets and plate electrodes. Successive plate electrodes are arranged to make... | 08/21/2007 |
| 7201785 | Dust collector for vacuum device A dust collector includes a base, a cover, and a barrel disposed between the base and the cover. The barrel includes a lower frame, an upper frame, one or more intermediate frames, and one or more telescopic tubes selectively secured to the frames, to form a spatial... | 04/10/2007 |
| 7186290 | Filter system with automatic media refresh A filter system includes a source of clean filter media adjacent a channel through which fluid passes. The filter media is automatically advanced from the source to the channel and eventually to a sealed container adjacent the channel. The filter media is automatica... | 03/06/2007 |
| 7143469 | Dirt collecting system The invention is floor care appliance such as vacuum cleaner having two embodiments of a dirt particle separating and collecting system removably inserted into a recess in the floor care appliance's housing. One embodiment of the dirt particle separating and collect... | 12/05/2006 |
| 7122065 | Adapter for low volume air sampler An adapter for use with a low volume PUF sampler is described. The adapter is affixed over the open end of a PUF (polyurethane foam) sample cartridge. Sample tubing is affixed to an aperture in the adapter, and the free end of the sample tubing is then positioned at... | 10/17/2006 |
| 7101420 | Self cleaning air filtration machine and a method for using the same Self cleaning air filtration machine and a method for using same comprising; a filter with a motor driven belt or disk or counter rotating disks that are perforated, a spray bar, a recirculation pump and supply line, a wet tank, a ultrasonic transducer, ultraviolet ... | 09/05/2006 |
| RE39241 | Modular SMIF pod breather, adsorbent, and purge cartridges Modular cartridges which may be inserted into and removed from a well or receptacle on the bottom of a pod. The cartridges may be configured to include various types and combinations of valves, filters, and/or conditioning agents. A standalone cartridge replacement ... | 08/22/2006 |
| 7077893 | Hood for a filter ventilator The invention relates to a hood (10) for a filter ventilator, which is connected to an outside wall (40) of a space to be ventilated, in particular the outside wall (40) of a control box, circuit housing, or case for various kinds of devices, an... | 07/18/2006 |
| 6976488 | Medication bypass heat and moisture exchange unit The present invention provides a heat and moisture exchange (HME) unit that includes a housing having a fibrous media in the housing that is designed to absorb and retain moisture and heat from exhaled air passing through the housing. The HME unit is designed to tra... | 12/20/2005 |
| 6913637 | Air purifier An air purifier includes a main body defining an air passage therein to allow sucked air to pass therethrough prior to being discharged, and a first filter installed in the main body to be switched between a closed state and an open state. The first filter removes c... | 07/05/2005 |
| 6902603 | Integrated air filtration unit An integrated air filtration unit includes a support structure for mounting a V-shaped filter bank to an air passage of an air handling system. The V-shaped filter bank may be moved from a working position in which the air is filtered to a service position in which ... | 06/07/2005 |
| 6878176 | Air conditioning filter A vehicle includes an operator's cab having an air inlet and an air filtration system, and an air outlet, wherein the air filtration system comprises a filter element, and a filter container for receiving the filter element, the operator's cab comprising a chamber f... | 04/12/2005 |
| 6843834 | Self-renewing air filter The replacement of filters for Heating, Ventilating, and Air Conditioning (HVAC) is often time-consuming and labor-intensive. Organizations having responsibility for many apartment or dormitory units can spend a significant fraction of their man-hours replacing such... | 01/18/2005 |
| 6811685 | Fouling mitigation device with movable screen A self-cleaning strainer which may be installed upstream of a heat exchanger to prevent debris greater than a critical size from reaching the heat exchanger. The strainer is preferably mounted just upstream of a heat exchanger in order to minimize the possibility of... | 11/02/2004 |
| 6773493 | Water separator for a gas analyzer A water separator for a gas analyzer, comprising a housing, a first chamber disposed within the housing, a second chamber disposed within the housing, a first wall formed of a gas permeable and liquid impermeable material separating the chambers, means for introduci... | 08/10/2004 |
| 6743282 | Furnace filter system A furnace filter system or kit for installation on an existing furnace duct having upper and lower supply roll supports respectively mountable on the top and bottom walls of the duct adjacent one side wall of the duct for removably receiving a supply roll of filter ... | 06/01/2004 |
| 6740144 | Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein A device for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream includes subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an el... | 05/25/2004 |
| 6733574 | Filter apparatus A filter apparatus for use with a fluid bed processor includes a movable filter bundle that can be selectively moved within a fluid bed chamber. The movable filter bundle includes one or more filters attached to corresponding filter mounts on a support structure. Th... | 05/11/2004 |
| 6699309 | Delivery system for carbon dioxide absorption material A delivery system for carbon dioxide absorption material includes a container for the storage of carbon dioxide absorption material, and a receptacle capable of receiving carbon dioxide absorption materials. The receptacle has a contact limiting membrane ... | 03/02/2004 |
| 6648947 | Method and apparatus for replacing a filter The present invention provides a method and apparatus for replacing a filter. The apparatus includes a receptacle adapted to receive a filter that is capable of filtering a first area. The apparatus further includes at least one supporting member to suppo... | 11/18/2003 |
| 6632269 | Furnace filter assembly A furnace filter assembly for removing dirt and contamination from air entering an existing furnace is installable on the existing furnace without the need for modification thereof, and includes a filter frame, a supply roll for supporting a continuous le... | 10/14/2003 |
| 6491735 | Furnace filter system A furnace filter system or kit for installation on an existing furnace duct having upper and lower supply roll supports respectively mountable on the top and bottom walls of the duct adjacent one side wall of the duct for removably receiving a supply roll... | 12/10/2002 |
| 6425819 | Air conditioner with rotary door and filter In an air conditioner, filter deformation strings are disposed on an outer surface side of a bent portion of a filter, so that the bent portion of the filter is crushed when a predetermined tension is applied to the strings. When the strings are drawn, th... | 07/30/2002 |
| 6425945 | Housing for electronic air cleaner An electronic air cleaner assembly (1) for attachment to an air handling unit AHU (2) of an air-conditioning system has a housing (10) containing a plurality of electrostatic filter cells (20). One side wall (11) of the housing (10) is pivotally mounted t... | 07/30/2002 |
| 6387164 | Housing for electronic air cleaner An electronic air cleaner assembly (1) for attachment to an air handling unit AHU (2) of an air-conditioning system has a housing (10) containing a plurality of electrostatic filter cells (20). One side wall (11) of the housing (10) is pivotally mounted t... | 05/14/2002 |
| 6387156 | Filtration system for collecting and filtering particles and fumes from ablative imaging plates A filtration system, includes a filtration unit and processor. The filtration unit operates to filter ablative particles generated by thermal imaging of media and transmits a signal corresponding to a parameter, such as a pressure or pressure differential... | 05/14/2002 |
| 6319297 | Modular SMIF pod breather, adsorbent, and purge cartridges Modular cartridges which may be inserted into and removed from a well or receptacle on the bottom of a pod. The cartridges may be configured to include various types and combinations of valves, filters, and/or conditioning agents. A standalone cartridge r... | 11/20/2001 |
| 6290741 | Auxiliary device for filter exchange in clean room An auxiliary device for filter exchange in an air filtering system of a clean room for allowing easy exchange of the filter used in the clean room. The auxiliary device for filter exchange may include a block plate having a width to be inserted through a ... | 09/18/2001 |
| 6267793 | Snap-in, snap-out clean room ceiling system A clean room ceiling filter system has a filter unit received by a filter unit receiving unit, the filter unit and filter receiving unit define cooperating latch and keeper structure that deflects into fastened engagement and releases from within the clea... | 07/31/2001 |
| 6022392 | Droplet separator A droplet separator including a plurality of droplet separating members configured for the formation of packs which are disposed at a supporting structure. The packs are connected to the supporting structure in an upwardly tiltable manner. Accordingly, th... | 02/08/2000 |
| 5993519 | Method of exchanging filters in a clean room and auxiliary device for use in the exchanging of the filters An auxiliary device is used in the exchanging of a filter in a clean room having a production section, and a filter frame including a filter-supporting portion which supports the filter and an extending portion which extends from the filter-supporting por... | 11/30/1999 |
| 5919278 | Register filter assembly This invention is drawn to a filter assembly for use in conventional floor registers in HVAC systems. The assembly includes a diamond shaped center rod which splits the air flowing through the filter assembly and supports a pair of hinged doors which open... | 07/06/1999 |
| 5853584 | Self-cleaning filter for filtering of liquids and gases A filter for filtering of a fluid, including a housing having an inlet port for the fluid to be filtered, an outlet port for filtered fluid and an outlet port for filtered fluid and an outlet port for rehect, In a body arranged in the housing to be rotata... | 12/29/1998 |
| 5807483 | Snap latch filter ring for a fuel injector A filter ring is provided that is particularly adapted for use around the circumferential fuel and timing fluid inlets of a diesel engine fuel injector. The filter ring includes first and second semi-annular, band-shaped filter portions, an integrally for... | 09/15/1998 |
