Abstract: In a method of exhausting an interior room to atmosphere through a corrugated conduit, the use of a connector which is attached to the corrugated conduit by tongues seated in the recesses of the conduit corrugations as a result of a telescoping together of the connector and conduit, the tongues preventing opposite direction untelescoping and obviating leakage-promoting crushing of the corrugations as might result from using a clamp.

Abstract: A telescopic extraction arm (1), having an outer tube (4) and an inner tube (6) displaceably and rotatably fitted therein. Via balancing rings (14, 16) fixed on each tube respectively, which are kept a pre-determinable distance apart by a stop member (18) arranged in the outer tube (4), the tubes can be easily displaced and locked in relation to one another with a negligible degree of the “drawer effect” occurring in conventional telescopic arrangements.

Abstract: A sports figure shaped fan for ventilation grills comprising a caricature formed in the shape of a sports figure. The sports figure shaped fan is attached to a ventilation grill and the arms are extended and rotate when subjected to a back draft from the air flow of the ventilation system. The rotation mimics a throwing action of the sports figure. The sports figure shaped fan also includes a reservoir and access to the reservoir for inserting one of a scenting agent, a deodorizing agent and a combination thereof, in the reservoir located in a designated portion of the caricature. The designated portion of the sports figure caricature is sufficiently permeable on either side of the reservoir so that when the air flow passes by the sports figure, a vapor is dispersed by the movement of the air flow emanating from the ventilation grill.

Abstract: A method for detecting a fuel leak in a compartment is provided. The compartment includes at least one inlet and an exhaust outlet that is coupled in flow communication with the compartment and in flow communication with a fan. The method includes determining a fan speed, measuring a fuel leak gas concentration value, determining a fuel leak gas concentration limit value within the compartment based on the determined fan speed, comparing the measured fuel leak gas concentration value with the determined fuel leak gas concentration limit value, and generating at least one of an alarm signal and a trip signal based on the comparison.

Abstract: An air quality system for controlling air quality in a cabin of a vehicle is provided. The air quality system utilizes three air quality sensors for detecting three air quality parameters. A controller is responsive to the air quality sensors. The controller is programmed to determine a current value of the air quality parameters from the air quality sensors and to determine whether the current value of any of the air quality parameters exceeds a predetermined limit. The predetermined limits for the air quality parameters are based on levels indicative of poor air quality for the cabin. The controller is operable between purging and non-purging modes to purge the air from the cabin in the purging mode when the current value of any of the measured air quality parameters exceeds the respective predetermined limit.

Abstract: A vehicle interior structure includes an air vent wall. The air vent wall has a nonpermeable layer, a nonpermeable surface layer and a permeable layer. The permeable layer has a three-dimensional net construction and is disposed between the nonpermeable layer and the nonpermeable surface layer. The permeable layer has two welded nonpermeable portions, which are extended linearly. An air passage is formed between the welded nonpermeable portions. The vehicle interior structure is applied to a vehicle temperature control system including an air conditioning unit and an air blower unit. The interior of the vehicle is ventilated through the air passage of the air vent wall.

Abstract: A tray for stacking papers formed with images by an image forming apparatus and an arrangement for discharging air from the inside to the outside of the apparatus. A ventilation portion is disposed on the back surface of the apparatus whereby hot air produced by, e.g., a fixing unit is prevented from reaching the operator of the apparatus.

Abstract: An apparatus and method for capturing the emissions from a controlled atmosphere treatment apparatus of the type having at least one, and usually several, controlled atmosphere zones therein and exhaust stacks that deliver environmentally unfriendly emissions therefrom. Nozzles are attached to the exhaust stacks from the various controlled atmosphere zones in the treatment apparatus. The nozzles accelerate the exhaust flow from the exhaust stacks, provide a means for measuring the flow from the exhaust stacks, yet maintain the mass flow rates from the exhaust stacks at predetermined levels. The flow from the nozzles is directed through closed conduits to an optional filter and an exhaust fan that provides suction to draw the exhaust flow through the nozzles.

Abstract: A fire resistant air transfer grille or damper (10), suitable for use as a ventilating means in fire resistant doors, walls and ventilation ducts, includes an outer frame (12) and a plurality of slats (14). Each of the slats (14) is provided with an intumescent core and is positioned in one of a number of predetermined positions within the outer frame (12). The predetermined positions are determined by a number of recesses (26) provided in the outer frame (12). The outer frame (12) may be formed as two separate frame components (16, 18), and is preferably made from steel. The slats (14) are preferably formed from aluminium with an intumescent material provided within the aluminium slat (14) to provide an intumescent core. Each of the slats (14) also preferably includes an elongate channel member (30, 32) along each of two of its side edges, wherein the elongate channel members (30, 32) of each of the slats (14) engage within the recesses (26) in the outer frame (12).

Abstract: An air handling luminaire having a light diffuser, louver, or lamp shield made of a flammable material and mounted within a luminaire housing. Integral with the luminaire housing is a heat distortable support clip from which the light diffuser, louver, or lamp shield depends. The luminaire housing also has a ballast channel and at least one reflector mounted therein. The ballast channel and luminaire housing have a plurality of vents and air gaps for fluid communication with an air plenum. The heat distortable support clip non-permanently deforms or distorts when introduced to a predetermined temperature in order to release the lamp shield from the housing and prevent burning thereof.

Abstract: Cooling fluid pressure within a plenum of a cooling system is controlled by activating the cooling system, sensing a plurality of cooling fluid pressures at a plurality of respective locations within the plenum, determining whether pressure differences between the plurality of sensed cooling fluid pressures are within a predetermined pressure differential, and modulating a variable volume device in response to the pressure differences being outside the predetermined pressure differential. The cooling system is configured to cool racks in a data center and includes a cooling device in fluid communication with the plenum. The plenum is in fluid communication with a vent configured to supply cooling fluid to the racks. The variable volume device is configured to control a flow resistance of cooling fluid within the plenum and is positioned between the plenum and the vent.

Abstract: The invention relates to a cabin pressure control system (10), a method of controlling the actual pressure inside a cabin (50) and an outflow valve (14; 15; 16; 17), especially for use in said system (10) or said method. The invention provides communication of actual cabin pressure to the outflow valve (14; 15; 16; 17) and additionally a common data exchange line (22) connecting the components of the cabin pressure control system (10). The system (10) is highly redundant and reliable, guarantees the desired sophisticated pressure control even if one or several components fail and allows complete elimination of the previously used fully pneumatic safety valves.

Abstract: An airflow system adapted for receiving airflow from a refrigeration unit mounted on a front of a lead trailer. The airflow system is also adapted for transferring and receiving airflow from a pup trailer pulled behind the lead trailer. The airflow system uses heated or cooled airflow discharged from the refrigeration unit inside the lead trailer to heat or cool goods at a constant temperature stored inside both of the trailers. The airflow system includes a modified air chute attached to the refrigeration unit and a lead airflow transfer hole in a rear door of the lead trailer. A transfer tube is connected to the transfer hole and to a pup airflow intake hole in the front of the pup trailer for circulating the airflow through the pup trailer. A return tube is connected to a pup airflow return hole in the front of the pup trailer and a lead airflow return hole in the lead trailer's rear door.

Abstract: An air-guiding nozzle has a fixed slat and several parallel pivoting slats. The fixed slat is configured to supply air to a vehicle side window and the pivoting slats are configured to blow air onto a person in the interior of the vehicle. When the pivoting slats are pivoted to their full extent, several of them close the discharge region that blows air onto a person in the interior of the vehicle and at least one of the pivoting slats interacts with the fixed slat such that the discharge region which supplies air to the vehicle side window is enlarged. This allows a compact construction of the air-guiding nozzle, which makes it particularly suitable for integration into the region of the B-pillar above the door ledge of a motor vehicle.

Abstract: Assemblies and methods are provided to divert liquids that would otherwise infiltrate utility manholes or other hatchways, while allowing gases to vent to the atmosphere. Preferred embodiments of the assemblies comprise a cover support frame, a sheet of water-repellent gas-permeable material occluding the central opening of the support frame and a cover mated to the frame. Preferably, a stiffening ring or other means of providing structural rigidity to the venting structure is provided. The assemblies are lightweight and are simple to install, and can be fabricated from materials that are readily available. Moreover, the assemblies can be easily modified to accommodate field conditions.

Abstract: A fume hood management system includes a collection section and a server apparatus. The collection section collects data representing an operation state from a plurality of fume hoods. The server apparatus includes an arithmetic section. The arithmetic section calculates a simultaneous utilization ratio on the basis of the number of simultaneously used hoods and the total number of fume hoods. The number of simultaneously used hoods is obtained from the data collected by the collection section and represents the number of fume hoods that are being used.

Abstract: A spray booth comprises a housing having a ceiling and a set of walls that each have a bottom end and a top end, with the walls and the ceiling defining an interior. An air intake is disposed in the ceiling, and an exhaust outlet is disposed near the bottom end of one the walls. A circulation system is used to introduce air into the interior through the intake and to exhaust air through the outlet. Further, the air intake is configured to produce a airflow gradient within the interior such that the flow rate decreases in a direction toward the outlet and such that the airflow through the interior is in a generally downward direction.

Abstract: An electrical component having a hybrid air cooling system. The electrical component comprises an air plenum that extends across the width of the component and a first set of air movers that is positionable in a first lateral position downstream of the air plenum within the component enclosure and a second set of air movers that is positionable in a second lateral position downstream of the air plenum within the component enclosure. The first and second sets of air movers each include at least two air movers arranged adjacent each other in series. When both positioned in the component enclosure, the first and second sets of air movers are arranged in parallel such that both serial and parallel air flows are provided within the component enclosure to dissipate heat generated therein.

Abstract: A fan carrier defines one or more enclosures with each enclosure receiving a fan unit. A first wall of the carrier includes at least one air vent that can be covered by a fire mesh. A second wall is substantially perpendicular to the first wall. The first and second walls form two walls of an enclosure for a fan unit. The second wall extends outwardly from the enclosure to define ears with locating lugs for locating the fan unit in a housing of the computer system. A fan subassembly includes the fan carrier and at least one fan secured therein, whereby the fan assembly can be installed in the computer system much more easily that a fan without the carrier. The fan subassembly can be located adjacent a vented portion of a housing wall of the computer system in a gap in a flange of that housing wall. The ear of the fan carrier is configured to overly a portion of that flange adjacent the gap and with the lug being received in a hole in said portion of the flange.

Abstract: A switchgear cabinet including a smoke indicator which has an intake pipe and, in a housing, a smoke sensor as well as a fan or ventilator, which draws air from the interior of the switchgear cabinet into the housing via an inlet aperture in a housing wall and discharges the air via an outlet into the space outside the housing. A sensitive smoke indicator, which is also usable with the switchgear cabinet partially open, has the intake pipe communicating by its upper end region with the inlet aperture. The housing which is enclosed in a sealing manner apart from the intake pipe and the outlet, is disposed in the interior of the switchgear cabinet.