Abstract: A removable hood for a fume extractor comprises a shield defining an internal cavity and having one or more vent openings in an upper portion, a welding opening in a rear portion, one or more viewing openings in one or more sides, and a pipe opening in a bottom portion of the shield. The pipe opening comprises arcuate portions on either side thereof for placement adjacent to a pipe. The hood also comprises a removable attachment mechanism on the upper portion of the shield configured to selectively couple the one or more vent openings to an extraction arm of the fume extractor, one or more layers of window material coupled to the shield to cover each of the one or more viewing openings, and one or more internal airflow spaces shaped to direct air flow to cool the window material when suction is applied to the vent openings.

Abstract: A register box for an HVAC installation has a body with a plurality of side panels arranged in a generally rectangular or square configuration and a plurality of flanges extending inwardly from the plurality of side panels, an expandable polymeric material affixed to an inner side of each of the plurality of side panels such that the expandable polymeric material has a portion extending across one end of the body inwardly of the plurality of flanges, and a sheet positioned over the portion of the expandable polymeric material at the one end of the body such that the sheet is interposed between the plurality of flanges and the portion of the expandable polymeric material. The expandable polymeric material and the sheet are cuttable so as to open to the interior of the register box.

Abstract: A laminar flow diffuser with integrated lighting has a frame for supporting an air plenum and a lower housing. The air plenum receives conditioned air from a source of conditioned air. The lower housing is attached to the bottom of the plenum. An aperture plate damper installed below the top plenum regulates the flow of air from the plenum through the laminar flow diffuser. A clear or translucent the perforated diffuser face forms the outlet from the lower housing to the room below. LED strips are positioned around the inside periphery of the lower housing. A perforated reflector panel is position below the aperture plate damper and above the LED strips to spread the light from the LED strips across the perforated diffuser face.

Abstract: An automatic airflow balancing valve (10), including: a housing (12) having an inlet (14) and an outlet (16) and defining a flow path (18) there through; a valve disc (30) operatively connected to the housing and disposed within the flow path; and an airflow volume calibrating assembly (92) disposed in the flow path and operatively connected to the valve disc and the housing to pivot the valve disc to a home position associated with a desired constant airflow volume. The airflow volume calibrating assembly includes an adjustment element that extends toward at least one of the inlet or the outlet.

Abstract: A portable paint booth has a floor, roof and walls made of non-porous materials, at least one door, an air inlet adapted to receive air from a mechanical blower, and an exhaust tube that extends from the booth and comprises at least one orifice disposed at a terminal end of the tube, wherein the terminal end of the tube is disposed above a junction of a wall and the roof when the booth is pressurized. The exhaust tube may be supported by a pole to hold the tube upright and maintain a predetermined height. The terminal end of the tube may be propped open by a support element that extends around a perimeter of the exhaust tube.

Abstract: A register box for HVAC installations has a body with a plurality of side panels arranged in a generally rectangular or square configuration and a wall extending across the rectangular configuration, a duct opening through the wall so as to communicate with an interior of the body, and an expandable foam polymeric material affixed to an inner side of the side panels. The wall has a surface extending from the opening of the duct to the side panels. The expandable foam polymeric material is affixed to the surface of the wall. The expandable polymeric material is polyurethane.

Abstract: A domestic hood may include: a support frame with a power input; a motor fan unit located within the support frame; the support frame extends between a lower end portion and an upper end portion, and at the lower end portion the hood has a suction port in fluid communication with the motor fan unit; a filter means arranged between the suction port and the motor fan unit and configured to filter gases extracted by the motor fan unit through the suction port; a lighting means including an enclosure that defines a seat containing a plate having a plurality of light-emitting diodes; a fixing means for removably fixing the lighting means to the support frame; and an electric connection means for electrically connecting the lighting means to the power input.

Abstract: Cooking exhaust systems for use with a cooktop appliance are provided herein. An exhaust system may include a casing, an image monitor, and an air handler. The casing may define an air inlet and an air outlet above the cooktop appliance. The image monitor may be supported on the casing. The air handler may be mounted within the casing in fluid communication between the air inlet and the air outlet to motivate an airflow therethrough. The air outlet may define an airflow curtain path extending outward from the casing in front of the image monitor.

Abstract: An airflow control system of a work vehicle includes a controller having a memory and a processor. During an initialization phase, the controller is configured to instruct a blower to operate at an initialization capacity to provide an airflow from an external environment into an interior of a cab of the work vehicle. The controller is also configured to receive a first signal indicative of a pressure within the interior of the cab and to determine a restriction factor based at least in part on the first signal. In addition, during an operation phase, the controller is configured to receive a second signal indicative of the pressure within the interior of the cab and to determine an input flow rate of the airflow from the external environment into the interior of the cab based at least in part on the restriction factor and the second signal.

Abstract: A ventilating system including a housing, a ventilating assembly and a mounting assembly coupled to the housing. The mounting assembly can include two support members, two first mounting brackets, two second mounting brackets, and two third mounting brackets. The third mounting brackets include a first and second flange, and the second mounting brackets include bendable tabs to secure the mounting assembly to a structure. The first mounting brackets each include lead in features comprising an alignment plate and a pair of guiding plates. The first mounting brackets include a portion between the lead in features that is spaced from the lead in features to provide housing clearance.

Abstract: An outlet device for ventilation of a vehicle interior has a housing which extends between an air inlet orifice and an air outlet orifice and a pivot bearing device mounted on the housing, wherein the pivot bearing device provides a rotational axis. The outlet device further comprises a rotatable displacement body, a first vane which extends in a direction across the rotational axis, a second vane which extends in a direction across the rotational axis and contrary to the extension of the first vane, a rudder, and an adjustment device. The adjustment device permits pivoting of the rudder around an axis that is parallel to the direction of extension of the first and second vanes.

Abstract: A replacement vent clip for attachment to a louver of an air vent assembly when the air vent assembly is installed in a motor vehicle includes two posts extending rearward from a lower wall of the vent clip and a lower and upper wall spaced apart from one another to create an open back end spanning an entire width of the vent clip. The open back end includes a channel sized smaller in height than a height of an opposing horizontal louver of an air vent assembly and includes a lip arranged to move to a second greater height when engaging the horizontal louver. The two longitudinally extending, spaced apart posts align the vent clip with a vertical post of an air vent assembly. Once the louver is contained within the vent clip, the channel moves back to its original height and captures the louver within the clip.

Abstract: An air current changeable full front blowing type air conditioner is provided. The air current changeable full front blowing type air conditioner includes: a case configured to comprise a heat exchanger disposed inside the case; a main air blower configured to be disposed in rear of the heat exchanger inside the case and discharge a main air current from a full front of the case; and at least one auxiliary air blower configured to be positioned around the main air blower of the case and discharge an auxiliary air current for changing a direction of the main air current. The auxiliary air blower discharges the auxiliary air current in a direction where the auxiliary air current interferes with the main air current discharged from the full front of the case.

Abstract: A ventilation grille has an annular shape, and includes a panel and a lamp unit. The panel includes an intake opening provided around a central part of the annular shape, and a frame provided around the intake opening. The lamp unit is provided in the central part of the annular shape. The panel has a structure for attaching and detaching the lamp unit.

Abstract: A ventilation fan humidity sensor and case includes a ventilation fan and a housing in which a suction port and an exhaust port are provided, a blowing part that guides air to the exhaust port from the suction port, an orifice that guides air sucked from the suction port to the blowing part via an air exhaust channel that communicates the suction port and the exhaust port, a humidity sensor for detecting humidity of air in the housing, and a humidity sensor case for accommodating the humidity sensor. The humidity sensor case includes a sensor base with a box shape having an opening, a first sensor cap that has a first ventilation hole and covers the opening, and a second sensor cap that has a second ventilation hole and covers the opening inside the first sensor cap.

Abstract: Various connection units are disclosed. The connection unit can be configured to straighten a flow of air, such as to reduce the distance before the flow of air becomes substantially laminar. The connection unit can include a drag reduction unit. The drag reduction unit can be configured to redirect airflow to the center of the connection unit. The connection unit can include a wake diverting component configured to lift air away from the periphery of the connection unit and/or redirect the airflow towards a radial center connection unit.

Abstract: Air-conditioning diffuser for distributing air, comprising a chamber (10) provided with an inlet orifice (30) for feeding air and with an outlet wall (20) made of a woven or non-woven fabric or foil, the outlet wall (20) comprising at least one array of through-holes (22) for distributing air into the surrounding environment. The air-conditioning diffuser further comprises a plurality of air deflecting pockets (23) for redirecting the air flowing through the through-holes (22) out of the air-conditioning diffuser, each air deflecting pocket (23) being attached to the outlet wall (20) on the outer side of the same, overlapping at least one through-hole (22) spaced apart from the through-hole and being open towards the space adjoining the outlet wall (20).

Abstract: An automobile air vent register is described. The register uses a rotating vent cover, and an elongate opening in a configuration providing good air flow control within a limited space.

Abstract: In a laboratory hood system having a housing with an access window opening into an interior work chamber for performing laboratory processes, and an air circulation system for creating an air flow from the laboratory environment inwardly through the access window into the work chamber for preventing hazardous materials from escaping into the laboratory environment through the access window, one or more air intake control devices are disposed in a selected location or locations at the access window to overcome any tendency for air turbulence to occur. The air intake control device has an air flow channel extending from an air intake opening to the laboratory environment to an air discharge opening to the work chamber, with a constriction in the channel for causing a venturi-effect increase in air velocity while flowing through the channel to promote non-turbulent air flow entering the work chamber at the selected location or locations.

Abstract: A leaf screen for an air intake of an HVAC system of a vehicle having a hood covering an engine compartment. The leaf screen includes a leaf screen body defining an air inlet opening covered by an integrally molded screen. A seal is integrally molded on a top surface of the leaf screen body in front of the air inlet opening. Bump-stops are integrally molded on the top surface that are engaged by an inner panel of the hood when closed. A method of making the leaf screen includes injecting a polymeric material into a mold to form a body portion. At least one elastomeric material is injected into the mold on one side of the body portion to form a seal and a plurality of bump-stops.