Abstract: A system for safely containing an infant on a mattress is described. The system includes a plurality of panels that extend upwardly from a base that supports the mattress, wherein the plurality of panels and the base form an enclosure around the mattress, and wherein at least one of the plurality of panels is configured to have a locked position and an unlocked position. The system also includes a detection system that detects when the at least one of the plurality of panels is in the unlocked position and a lighting system operatively coupled to the detection system, wherein the lighting system is configured to emit light when the at least one of the plurality of panels is detected to be in the unlocked position. Furthermore, the system includes a power system that provides energy to the lighting system for emitting the light.

Abstract: A system for safely containing an infant on a mattress is described. The system includes a base that supports the mattress and panels that extend upwardly from the base and together form an enclosure around the mattress. A porthole is defined through at least one of the panels, where the porthole provides access into the enclosure. A porthole door has locked and unlocked positions and covers the porthole only in the locked position. A detection system detects when the porthole door is in the unlocked position. A lighting system is operatively coupled to the detection system and is configured to emit light when the porthole door is detected to be in the unlocked position. A power system provides energy to the lighting system for emitting the light.

Abstract: An air conditioning appliance defining a vertical direction includes a housing comprising a wall disposed in the vertical direction, the wall defining an opening therethrough; a heat exchanger disposed in the housing; a compressor in fluid communication with the heat exchanger to circulate a refrigerant through the heat exchanger; and a door assembly attached to the wall proximal to the opening. The door assembly includes a frame removably secured to the wall and surrounding the opening, the frame comprising a tab protruding from a first surface of the frame and extending in the vertical direction, and a door pivotably connected to the frame, the door defining an aperture into which the tab is received. The tab is symmetrical about a horizontal centerline of the tab.

Abstract: A multimodal airborne pathogen control apparatus and system configured to direct and decontaminate a volume of indoor air of occupied spaces and reduce the risk of spreading airborne contagions. Certain aspects of the multimodal airborne pathogen control apparatus and system may include one or more infection control modalities including, but not limited to, dielectric Cold Plasma generation, non-ozone producing UV-C light, True HEPA filtration comprising a monoterpene phenol-impregnated filter material, and configurable intake/output ducting to direct airflow to/from a desired area and regulate interior atmospheric pressure. Embodiments of the present disclosure include a door-mounted control unit comprising a door panel having one or more directional intake vents at a floor-level of the door panel, an interior chamber housing a blower fan and one or more germicidal irradiation/inactivation means, and one or more directional output vents at a head level of the door panel.

Abstract: Hollow core door apparatus for preventing the build up of pressure in a room having a register through which air flows into the room and the door includes an inside door skin and an outside door skin, and the door skins includes openings through which air flows and a center panel between the skins and spaced part from the skins. The center panel has an outer perimeter greater than the inner perimeter of the openings. The center panel is spaced apart from the skins, and also from the adjacent stiles and rails. A chamber is formed about the panel and between the adjacent stiles and rails and the openings in the skins. Air flow from the room is through the opening in the inside skin into the chamber, around the outer periphery of the panel, and outwardly through the opening in the outside skin in a non-linear manner.

Abstract: Examples of an inlet to enable a forced air flow to enter a build material container in a 3D additive manufacturing system are described. In one case, the inlet has a structure having an inner face and an outer face forming at least one aperture through the structure through which forced air flows in use. The inlet has a longitudinal axis and the inner face and outer face are non-aligned along at least one axis which passes through each of inner face and the outer face and is substantially parallel to the longitudinal axis.

Abstract: A combination light and pressure relief vent is disclosed which includes a housing, a valve assembly, and a light assembly. The housing include a multi-radial positionable valve body, port tube, and an outside louver. The valve assembly includes a low positive pressure exhaust valve, a high positive pressure exhaust valve, a low negative pressure intake valve, and a high negative pressure intake valve. The light assembly includes a heat sink casing which defines a heat chamber and which includes a projection extending into the heat chamber. The casing is coupled to an LED module wherein heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

Abstract: A vehicle body structure includes a wall and a removable panel. The wall has a first surface and a second surface opposite the first surface. The wall defines a vent opening with a peripheral edge extending between the first surface and the second surface. The wall includes an air vent structure open to the vent opening. The removable panel has a trim surface and an attachment surface with a plurality of air vent slots extending from the attachment surface to the trim surface. The attachment surface has a retaining structure configured to retain an air filter along the attachment surface and an attachment structure configured to attach to the wall covering the vent opening with the retaining structure extending at least partially within the air vent structure.

Abstract: A combination light and pressure relief vent is disclosed which includes a housing, a valve assembly, and a light assembly. The housing include a valve body, port tube, and an outside louver. The valve body has a low positive pressure exhaust port, a high positive pressure exhaust port, a low negative pressure intake port, and a high negative pressure intake port. The valve assembly includes a low positive pressure exhaust valve, a high positive pressure exhaust valve, a low negative pressure intake valve, and a high negative pressure intake valve. The light assembly includes a heat sink casing which defines a heat chamber. The casing is coupled to an LED module wherein heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

Abstract: A hollow core door for a room, the door includes a stile and rail frame, an inside skin having a plurality of holes extending therethrough, an outside skin having a plurality of holes extending therethrough, both skins secured to the frame. The door includes a-panel disposed between the inside and outside skins, the panel having a surface area greater than an area of the pluralities of holes, and having openings disposed laterally of the pluralities of holes. The panel includes a slider panel having a plurality of slider panel openings, the slider panel slidable to alternately allow or block a flow of air. The pluralities of holes are located whereby air flows inwardly through the plurality of holes in the inside skin, divides, flows about the panel and through its openings, and outwardly through the plurality of holes in the outside skin in a non-linear manner.

Abstract: In a rooftop ventilator having a base housing, a lid operatively attached to the base housing, wherein the lid has a plurality of lid sides extending downwardly from a lid surface, and a ventilation fan positioned above the lid surface, a lid reinforcement device is provided, comprising corner reinforcing members attached to the corners of the lid. Each corner reinforcing member comprises a pair of side members flush with the lid sides, and one or more support fingers for receiving and supporting the lid sides. A corner cap is attached to the side members and overlaps the lid surface to retain the lid sides within the support fingers. The corner caps can also include cylindrical sleeves for engagement with a pair of hinge shafts extending from shaft support brackets attached to the base housing.

Abstract: A vehicle cargo carrier includes a coupling assembly, and a storage assembly. The coupling assembly can selectively attach to a vehicle. The storage assembly can selectively attach to the coupling assembly. The storage assembly includes a first storage body, a second storage body, and a fluid redirection member. The first storage body defines an inflow vent that can receive fluid from an exterior of the first storage body toward an interior of the first storage body. The fluid redirection member includes a base and an insertable extension. The base is attached to either the interior of the first or second storage body. The base defines a first open end that can receive a portion of the fluid from the inflow vent. The insertable extension defines a second open end such that the second open end and the first open end are in fluid communication.

Abstract: Systems and methods for use in a vehicle can involve determining that a plurality of closures of a vehicle have been closed, running an HVAC system in a fresh air mode after determining that the plurality of closures have been closed, and thereafter recirculating air while adding newly filtered air to maintain a positive air pressure level in a passenger cabin of the vehicle. The determining can occur after one or more people enter the vehicle and being driving, and the recirculating and adding can involve activating a recirculation mode and a fresh air mode simultaneously. Adding newly filtered air maintains a positive air pressure level in a passenger cabin, which level can be set based on an amount of leaks, a user setting, a vehicle type and a pollution level. The determining, running, and recirculating and adding can occur again after determining a vehicle closure has been opened.

Abstract: Disclosed is a system and method for control of air flow in an enclosure. A system discloses: a first element located on a first surface of the equipment enclosure having: first and second reels located along opposing edges of the first element; and a first air flow control element located between first and second reels and having a first portion and a second portion, said first portion being located on an edge of the first element adjoining the first reel, said second portion being located on an edge of the first element adjoining the second reel, each having apertures located therein of a number or cross sectional area different from the other portions, movement of the first air flow control element from a first reel to a second reel by rotation of the reels causing the first portion or second portion to be positioned between the first and second reels.

Abstract: A ventilator door brings fresh outside air into a structure through an outside opening and a fan or blower pulls outside air into a duct in the door. The air flows through the duct and into the structure through an inside grill remote from the outside opening. Heat is transferred from the flow of air to a heat sink disposed in the duct to cool the fresh air flowing into the duct. A regenerative heat sink may be used to capture heat from a flow of air from inside the structure and transfer the captured heat to a flow of outside air flowing into the structure. An inside opening in the door generally opposite to the outside opening. The air flow through the openings is controlled by movable panels by aligning or by misaligning openings in the movable panels with the openings in the outside and inside panels. A microprocessor controls the movable panels and the fan or blower in response to sensors inside and outside of the door.

Abstract: A hollow core door for preventing pressure build up in a room having a forced air system includes an outer stile and rail frame, an inside skin having an opening secured to the outer frame, an outer skin having an opening secured to the outer frame, and a core assembly, which may be prefabricated, including a core assembly frame, a center panel disposed within the core assembly frame, openings extending through the center panel adjacent to the core assembly frame, spacers adjacent to the core frame to space the core assembly apart from the inside and outside skins, and the core assembly is disposed within the outer frame, whereby air flows through the opening in the inside skin, along the center panel, through the openings in the center panel, along the center panel and outwardly through the opening in the outside skin in a non-linear manner to prevent pressure build up in a room in which the door is installed to comply with the Department of Energy maximum recommended pressure of three pascals or less.

Abstract: A shutter panel for an architectural opening is provided. The shutter panel may include a frame and a louver rotatably coupled to the frame. The louver may be automatically closable based on an angular orientation of the louver. The shutter panel may include a closure device operably associated with the louver. The closure device may be actuated based on the angular orientation of the louver. The shutter panel may include a damping device operably associated with the louver. The damping device may be actuated based on the angular orientation of the louver. The shutter panel may include a tension device operably associated with the louver.

Abstract: Hollow core door apparatus for preventing the build up of pressure in a room includes an inside door skin and an outside door skin, and the door skins include openings through which air flows. A center panel is disposed between and spaced apart from the skins. The center panel has an outer perimeter defined by notches through which air flows. Tabs between the notches are used to secure the center panel to the inside and outside door skins. Air flow from the room is through the opening in the inside skin, around the outer perimeter of the panel, and outwardly from the door and room through the outside skin in a non-linear manner. Air flow is controlled by a plurality of movable panels disposed adjacent to the outer perimeter of the center panel. Sensor elements for detecting aspects of the indoor environment and for providing output signals, including signals for actuating the movable panels, are included. A method of making the door follows the structural elements defined above.

Abstract: A hollow core door apparatus for preventing the build up of pressure in a room includes an inside door skin and an outside door skin, and the door skins include openings through which air flows. A center panel is disposed between and spaced apart from the skins. The center panel has an outer perimeter defined by notches through which air flows. Tabs between the notches are used to secure the center panel to the inside and outside door skins. Air flow from the room is through the opening in the inside skin, around the outer perimeter of the panel, and outwardly from the door and room through the outside skin in a non-linear manner. Air flow is controlled by a plurality of movable panels disposed adjacent to the outer perimeter of the center panel. Sensor elements for sensing desired information and for providing output signals, including signals for actuating the movable panels, are included.

Abstract: A door has a stile and rail frame and a center element secured to the stile and rail frame. Openings extend through the margins of the center element, and inside and outside outer skins or elements are secured to the stile and rail frame. The inside and outside outer skins have openings adjacent to and laterally spaced apart from the openings through the margins of the center element, whereby air flows through the opening in the inside outer skin, through the openings in the margins of the center element, and through the opening in the outside outer skin in a non-linear manner to prevent pressure buildup in a room to comply with the government recommended pressure of three pascals or less.

Abstract: Doors having stile and rail frames and center elements secured to the stile and rail frames and the center elements have margins inwardly where the center elements and the door frames overlap and openings extend through the margins outwardly from openings in skins, and inside and outside skins are secured to the stile and rail frames. The inside and outside skins have openings adjacent to and laterally or inwardly spaced apart from the openings through the margins whereby air flows through the openings in the inside skin, through the openings in the margins, and through the openings in the outside skin in a non-linear manner to prevent pressure build up in rooms to comply with the Department of Energy maximum recommended room pressure of three pascals or less.

Abstract: A ventilator door brings fresh outside air into a structure through an outside grill and a blower pulls outside air into a duct in the door and the air flows through the duct and into the structure through an inside grill remote from the outside grill. Heat is transferred from the flow of air to a heat sink disposed against the duct to cool the fresh air flowing into the duct. A regenerative heat sink may be used to capture heat from a flow of air from inside the structure and transfer the captured heat to a flow of outside air flowing into the structure. With the regenerative heat sink, a second blower is used to blow the inside air through the duct and outwardly through the outside grill before the outside air is pulled into the duct and blown past the regenerative heat sink to warm the air flow in to the structure. Several embodiments are included.

Abstract: Provided is a security device and method for preventing burglary of a container. The method includes igniting, via ignition means, an explosive substance in the container, so that the explosive substance is combusted before it reaches a critical mass. The method further includes conveying atmosphere from inside the container to the ignition means.

Abstract: An aisle containment roof system includes a frame configured to be supported by two rows of racks or by the one row of racks and a wall or by a dedicated frame structure independent of the two rows of racks. The aisle containment roof system further includes a fixed perforated panel fixedly secured to the frame. The fixed perforated panel includes a pattern of openings formed therein. The aisle containment roof system further includes a movable perforated panel movably secured to the frame. The movable perforated panel has a pattern of openings corresponding to the pattern of openings of the fixed perforated panel. The aisle containment roof system further includes a mechanism configured to move the movable perforated panel relative to the fixed perforated panel to align the openings of the movable perforated panel to the openings of the fixed perforated panel.

Abstract: Hollow core door apparatus for preventing the build up of pressure in a room includes an inside door skin and an outside door skin, and the door skins include openings through which air flows. A center panel is disposed between and spaced apart from the skins. The center panel has an outer perimeter defined by notches through which air flows. Tabs between the notches are used to secure the center panel to the inside and outside door skins. Air flow from the room is through the opening in the inside skin, around the outer perimeter of the panel, and outwardly from the door and room through the outside skin in a non-linear manner. The door alone with normal undercuts and margins, and with its notches and associated structural elements, achieves a Rater-measured pressure differential of equal to or less than 3 pascals with respect to the main body of the building when bedroom room doors are closed. For larger rooms with air flow greater than one hundred fifty cfm, the pressure is equal to or less than 5 pascals.

Abstract: Hollow core door apparatus for preventing the build up of pressure in a room having a register through which air flows into the room and the door includes an inside door skin and an outer door skin, and the door skins includes openings through which air flows and panels disposed in the openings to define the amount of air flowing through the openings in the skins. The door also includes at least a single fixed panel and a movable panel, both of which panels include openings through which air flows when the openings in the panels are aligned and which air flow is restricted when the openings are misaligned.

Abstract: A door sealing system includes a door seal for sealing either an upper or a lower side of a building door wing, and an air channel which enables, when the door seal is in the sealing position, air to circulate from a longitudinal side of the door seal to an opposite longitudinal side of the door seal. The door sealing system also includes at least one ventilator that guides air through the air channel. The door sealing system enables sufficient air to be exchanged even when the door wing is closed.

Abstract: Stile and rail door apparatus for preventing the build up of pressure in a room having a register for a forced air system through which air flows into the room includes hollow core stiles and rails and which hollow cores define a chamber and a panel having an outer periphery secured to spacers to secure the outer periphery of the panel within chamber to provide a perimeter air flow about the panel. Air flow from the room is through the door by flowing into the chamber and about the outer periphery of the panel and outwardly from the chamber and outwardly from the room in a non linear manner.

Abstract: The invention is a ventilated vehicle roof rack carrier such as a cargo box for transporting items such as athletic equipment or other personal items on top of a car. The cargo box has a rigid housing shell. The housing has a top shell and a bottom shell. The top shell and the bottom shell are connected together by one or more hinges. The top shell further has at least two opposing vents for drawing air into the housing shell body and allowing air to exit the housing shell body. The cargo box also has a means in communication with the housing for attaching the housing to the vehicle. The means for attaching is a rail system with engagement means for attaching the rail system to the vehicle. The rail system further has a first articulating rail and a second articulating rail oriented in parallel relationship to each other.

Abstract: Hollow core door apparatus for preventing the build up of pressure in a room having a register through which air flows into the room and a center panel in the door with at least a single opening through the center panel; the door has an inside door skin and an outside door skin, both of which include openings spaced apart from the center panel, and an inside panel and an outside panel disposed in the respective openings in the inside and outside door skins. The inside and outside panels are spaced apart from the center panel within the respective door skin openings, and the spacing within the door skin openings define peripheral openings at least as great as the area of the opening in the center panel and are offset from the opening in the center panel to provide for a non-linear flow of air through the door to prevent the build up of pressure in the room. Several different embodiments are illustrated.

Abstract: Combined refrigerator/freezer appliances with dampers having ice prevention treatments are disclosed. An example combined refrigerator/freezer appliance includes a cabinet having a first compartment and a second separate compartment, a refrigeration system including a compressor, a single evaporator and a condenser, the single evaporator being associated with the first compartment to lower temperatures of the first and second compartments, and a damper having a first position in which air is prevented from flowing from the first compartment to the second compartment, and a second position in which air is permitted to flow from the first compartment to the second compartment, wherein at least a portion of the damper is treated to prevent ice buildup from forming on the at least portion of the damper when the damper is in the first position.

Abstract: An improved entranceway to an enclosure for people and/or vehicles including a frame having a pair of laterally-spaced side wall portions and a top wall portion which, combined, encompass an inclined pathway. The frame is adapted for contact with an exterior wall of the enclosure and is placed in surrounding relation to a first opening therein, the side wall portions extending outwardly from the exterior wall on opposite sides of the inclined pathway. The inclined pathway and the side and top wall portions cooperate so as to define a second opening distally located to the exterior wall. The first opening has a lower boundary and the second opening has an upper boundary, with the lower boundary being at an elevation higher than that of the upper boundary. In use, the presence of a temperature differential within the entranceway causes warmer air to be sustainably trapped in an upper portion of the entranceway and above the upper boundary.

Abstract: The door insert of the present invention balances air pressure in a closed environment. It includes a frame that defines a slot. A pair of tabs emanates from opposing sides of the frame to attach the frame to a door. Media, which has a plurality of apertures therethrough, resides in the slot. The frame, with media installed therein resides within a notch in an edge of a door. Air is permitted to flow through the door insert to balance the air pressure within an environment divided by the door. The frame is preferably ABS plastic and the media is preferably paper. The appearance of the frame and media may be modified to aesthetically match the decor of the door, door hardware and surrounding environment.

Abstract: A hydraulic excavator includes a lower travel body, an upper swiveling body, an exterior door, and a louver. The upper swiveling body has a swiveling platform and a frame with a lower end part of the frame being secured to the swiveling platform, the upper swiveling body being swivelably supported by the lower travel body. The exterior door has a curved part in which an opening is formed. The exterior door is openably/closably supported by the frame of the upper swiveling body. The louver blocks the opening in the exterior door in a closed state, and the louver is mounted in the frame of the upper swiveling body.

Abstract: A temperature door for an air handling system of a heating, ventilating, and air conditioning system includes a first surface defining a sealing perimeter and a pivoting structure coupled to the first surface and defining an axis. The first surface is configured to pivot about the axis in the housing of the air handling system. A sealing lip is disposed about the sealing perimeter of the first surface and is adapted to engage a corresponding sealing surface of the housing of the air handling system. A pivoting of the first surface about the axis from a sealed position causes a progressive disengagement of the sealing lip from the sealing surface beginning in a location proximate the axis while at least a portion of the sealing lip remains engaged with the sealing surface at a location spaced from the axis.

Abstract: A data centre (100) includes at least one rack room (in for example module 140) having a floor and a plurality of rack storage areas on the floor, each rack storage area being arranged to accommodate a plurality of racks (143) in which a plurality of rack-mountable electronic components may be housed, one or more controllable air circulation systems (in for example module 122), one or more cold aisles (144) in the rack room, each cold aisle being adjacent to a rack storage area, and one or more hot aisles (145) in the rack room, each hot aisle being adjacent to a rack storage area. There may be a large air duct, in the form of a personnel corridor (123), for transporting, under the control of the one or more air circulation systems, cooling air, above the floor, to the one or more cold aisles. The air supply corridor/duct (123) may have a height greater than 1.5 m above the floor and a cross-sectional area of at least 2 m2 and a maximum dimension in the plane of the cross-section of less than 3 m.

Abstract: An air filter system and an air filter therefor are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. The gap between the door edges and the door frame and the door threshold region has an air flow permitting region in at least a portion of the gap. An air filter is mounted to extend substantially across the air flow permitting region.

Abstract: The present invention an airplane air filtering system device comprised of a frame having flanges, including means to mount to the inside surface of a lavatory door oriented with vent louvers. The frame is preferably mounted to the door with adhesive strips. A replaceable filter with a grasping tab is placed within the frame. As the toilet in the airplane lavatory is flushed, vacuum action causes air outside of the lavatory to be pulled through the filter.

Abstract: A room deodorizer that utilizes an airflow created by a ventilation device within an enclosed room to disperse a deodorizing agent. The room deodorizer is mounted near the bottom edge of a door and includes a deodorizing strip that extends below the bottom edge of the door to the floor. The deodorizing strip obstructs an airflow passageway created between the bottom edge of the door and the floor. The deodorizing strip is impregnated with a deodorizing agent such that when a ventilation device within the room is activated, the created airflow passes through the deodorizing strip to release the deodorizing agent into the enclosed room.

Abstract: A flexible door panel cold storage door system incorporates a flexible movable door panel having an internal support frame assembly and the door panel has a plurality of gasket sections removably attached to a cold space surface of a door panel jacket with each gasket section having at least one ferrous gasket target and the gasket sections are aligned and cooperate with a plurality of electromagnets that are mounted in a doorframe assembly when the door panel is in a closed position. The electromagnets are mounted in wells in the doorframe assembly and are powered on when the door panel is in the closed position and the wells are interconnected by a ventilation channel that conducts air heated by operation of the electromagnets through the ventilation channel and into and through a bottom sweep assembly of the door panel in a closed loop.

Abstract: The present invention relates to a system and a method of temperature equalization applied to the door (12, 24, 30) of electrical home appliances by means of the circulation of air within the freezing compartment (23), the freezer compartment (11) or the refrigeration compartment (16), as may be the case, in order to eliminate regions wherein the air stands still. The said circulation comprises the forced moving of the air between at least one air inlet opening (34) and at least one air outlet opening (15, 25, 35, 36), the said forced moving being provided by the action of at least one ventilation fan (13, 26, 37), installed in the air inlet opening or in the air outlet opening. The said openings are positioned in regions of different temperatures within the compartment, and are interconnected by means for conducting the airflow (14, 27, 34), which means may be provided by means of ducts.

Abstract: The present application relates to an arrangement for reducing thermal energy loss through a sill assembly of the type used with a door or window. The sill assembly includes at least one sill member. The at least one sill member has a hollow region therein. The sill assembly further includes a baffle disposed within the at least one sill member. The baffle spans a length of the at least one sill member and divides the at least one sill member into a plurality of chambers thereby limiting interaction of warmer air and cooler air within the at least one sill member. The baffle reduces heat transfer through the hollow region via convection.

Abstract: An air filter system and an air filter therefor are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. Weatherstripping is mounted between side and upper edges of the door and a door frame in the wall and between the lower edge of the door and the threshold region of the floor to substantially seal against air flow between the door edges and the door frame and floor when the door is closed. An air flow permitting opening is provided in the wall-door system, sized to permit a controlled amount of airflow between the first and second zones when there is a pre-determined pressure differential between said zones. An air filter is mounted in such opening.

Abstract: The amusement apparatus comprising a housing, a frame and an interior space, and a door allowing entry of a player having arms into interior space. An air circulation system fluidly connected to interior space of housing. An engagement system located within interior space. Engagement system, control system, signaling system and an air circulation system are cooperatively interconnected. A player area is located within the interior space and positioned proximate the engagement system wherein contact by player with engagement system initiates a sequence of instructions from the control system to initiate the delivery of air into interior space by air circulation system for circulation of prizes within interior space. A signal to player is sent via signaling system to discontinue player contact with engagement system so player may interact with the prizes circulating in the interior space for the purpose of removing the prizes from the housing via the interior space.

Abstract: A heat transfer inhibitor system to minimize the heat transfer through the structural opening closures with an interior and an exterior panel such as windows, doors and skylights that are the weak links in interior insulation. By moving a stream of constant temperature air through a space between the external panel and the interior panel, the temperature differential between the exterior surface of the internal panel and the interior is minimized thus reducing the load and maintenance costs on heater/AC systems. It also reduces the required size and costs of installations.

Abstract: The door insert of the present invention balances air pressure in a closed environment. It includes a frame that defines a slot. A pair of tabs emanates from opposing sides of the frame to attach the frame to a door. Media, which has a plurality of apertures therethrough, resides in the slot. The frame, with media installed therein resides within a notch in an edge of a door. Air is permitted to flow through the door insert to balance the air pressure within an environment divided by the door. The frame is preferably ABS plastic and the media is preferably paper. The appearance of the frame and media may be modified to aesthetically match the decor of the door, door hardware and surrounding environment.

Abstract: An air filter system and an air filter therefor are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. Weatherstripping is mounted between side and upper edges of the door and a door frame in the wall and between the lower edge of the door and the threshold region of the floor to substantially seal against air flow between the door edges and the door frame and floor when the door is closed. An air flow permitting opening is provided in the wall-door system, sized to permit a controlled amount of airflow between the first and second zones when there is a pre-determined pressure differential between said zones. An air filter is mounted in such opening.

Abstract: An access door assembly for use in an air-handling unit provides a structural member that prevents over-compression of gaskets by the access door panel for improved gasket life and effectiveness and increases the thermal efficiency properties or the air-handling unit. The access door assembly has a “Z” shaped cross-section and includes a gasket channel and an anti-compression leg having a rim to prevent over compression of the gasket located in the gasket channel.

Abstract: A two part grille with interlocking connections molded from opaque plastic allows one or more screens or filters supported inside the grille and provides a configuration which allows its parts to be fitted on opposite sides of an opening in a wall or a door locked together by a mortise and tenon joint so that no screws are necessary, and the two part grille further have intermediate spacers used to accommodate differing thickness of a wall or the like.

Abstract: A computer thermal dissipation system comprises a computer device having a base member and a display member where the computer device has at least one airflow door disposed on the base member adapted to be opened to facilitate thermal energy dissipation from the base member.