Abstract: A light fixture for mounting in a t-bar ceiling structure, the light fixture includes a housing configured to support a ring-shaped lens to at least partially surround an inner reflective surface, the inner reflective surface being configured to at least partially reflect light incident thereon from the lens, to present a mirage effect in a transition zone near the lens.

Abstract: A blower device for delivering at least one medium includes a blower having a housing with an inlet and an outlet, a nozzle, which is fluidically connected and arranged on the housing such that at least one medium can flow there through. The nozzle is designed to effect a negative pressure on the at least one medium at least in some sections. At least one sensor is arranged in the effective region of the nozzle and designed to measure at least parameters of the at least one medium which are required to determine the mass of the at least one medium.

Abstract: An air moving system includes an air moving device including a housing member, a rotary fan assembly, and a nozzle, the housing including a plurality of air intake vents. The nozzle is configured to move relative to a longitudinal axis of the air moving device. The air moving system includes a ceiling grid structure. The air moving device is configured to rest within a grid within the ceiling grid structure or within an opening in the ceiling.

Abstract: In some example pliable air duct systems, inflatable ducts of various diameters and lengths are created by selectively assembling pre-existing stock pieces in different combinations. In some examples, the stock pieces include disconnectable longitudinal joints and disconnectable circumferential joints, wherein the longitudinal joints enable interconnecting multiple stock pieces to achieve a desired tube diameter, and the circumferential joints allow connecting multiple tube segments end-to-end to produce an air duct assembly of a desired length. To control the volume and/or the direction of air discharged from the duct, the duct assembly, in some examples, includes an adjustable register comprising a movable pliable sheet that overlies a discharge opening in a pliable sidewall of the duct. In some examples, the inflatable duct includes one or more cutout patterns on the duct's sidewall to provide guidance in creating a sidewall discharge opening of a proper size and location.

Abstract: An air conditioning register including a plurality of adjustable slats coupled to respective pinion gears. The pinion gears may engage with a rack gear so that a linear motion of the rack gear translates into a rotational motion of the pinion gears. A driving gear coupled to a shaft may be used to drive the rack gear. The shaft can be driven by a manual tool of suitable length, or by electrical or electronic methods. The manual tool and/or electronic methods may be so designed that a user can rotate the shaft without being in close proximity to the register.

Abstract: A diffuser is provided for controlling flow of air in an air conditioning system. The diffuser has an air flow control baffle (B) that is controlled by pivoting arms (12). Two collars (62,62) actuate the arms (12) in cam fashion by acting on either of two cam surfaces (92,94) of each arm (12) to open or close the baffle (B). The collars (62,64) can move independently of each other towards and away from the respective cam surfaces (92,94), i.e. in an actuating direction. The diffuser includes a set point adjustment mechanism (132) for moving both the collars (62,64) in unison in the actuating direction, i.e. to adjust the heating and cooling set points simultaneously and includes an offset adjustment mechanism (150) for moving one of the collars (62,64) in the actuating direction relative to the other collar, i.e. to change the offset between the heating and cooling set points.

Abstract: A diffuser cartridge (10) of restricted height is provided for controlling flow of air in an air conditioning system. The cartridge (10) has two axially aligned temperature sensitive elements (34,68) for respectively sensing room temperature and duct temperature variations. Arms (12) are provided for displacing an air flow baffle (B) and a control structure is provided for displacing the arms (12) in response to sensed room and duct temperatures. The control structure pivots the arms (12) cam-fashion as it is moved vertically by the temperature sensitive elements (34, 68). The control structure has two springs (54,56) that act in series to counter movement of the control structure by the temperature sensitive elements (34,68). The springs (54,56) are nested coaxially within each other, with an intermediate component (48) transferring compressive loads from one spring to the other.

Abstract: One aspect of the invention provides a vent which comprises a body member and an adjustment member. The body member comprises a vent passageway that extends from an inward side to an outward side of the body member. The body member also comprises a collar having a collar passageway that extends from an inward side to an outward side of the collar. The collar passageway is in fluid communication with the vent passageway. The adjustment member comprises a head disposed to adjustably restrict a flow of air through the vent passageway and an inwardly projecting stem having one or more stem portions. The one or more stem portions comprise one or more contact portions which engage an interior surface of the collar and which adjustably couple the adjustment member to the body member. The one or more stem portions, alone or in combination with the interior surface of the collar, define one or more collar openings that extend through the collar passageway.

Abstract: A unit includes

Abstract: An air diffuser for an air distribution system comprising a first and a second border member. Plural spreaders interconnect the first and second border members thereby defining an airflow aperture therebetween. A pattern controller is slidably disposed between the plural spreaders for controlling the volume of airflow through the airflow aperture. The pattern controller is pivotable within the airflow aperture for controlling the direction of airflow through the airflow aperture.

Abstract: A diffuser having side rails and bridges includes different sets of air control blades that are interchangeably mounted on and slidable along slots located in the bridges. The different sets of blades may be interchanged without disassembly of a remainder of the diffuser.

Abstract: A slot diffuser includes a pair of elongate and parallel side walls spaced by pairs of bridges. The bridges include feet that slide along receivers in the side walls such that the bridges can be positioned at any location therealong and provide support to the bridges and stability to the diffuser. The bridges include slots that extend between the side rails and that receive ends of air flow control blades. The air flow control blades include an elongate planar portion supported by rods extending outwardly on either side of the planar portions to support the blades in the slots. At a lower end of each planar portion opposite the rods is a foot that extends perpendicularly outward therefrom. Each side rail includes an inwardly projecting flange that is sized and positioned to slidably receive the foot of an associated blade such that the blade may be manually moved both within the slot and along the flange to properly position the blade during the installation or subsequent modification.

Abstract: A slot diffuser includes a pair of elongate and parallel side walls spaced by pairs of bridges. The bridges include feet that slide along receivers in the side walls such that the bridges can be positioned at any location therealong and provide support to the bridges and stability to the diffuser. The bridges include slots that extend between the side rails and that receive ends of air flow control blades. The air flow control blades have an elongate planar portion supported by rods extending outwardly on either side of the planar portions to support the blades in the slots. The blades are removable without disassembling the entire diffuser. Each bridge has an arcuate cover that reduces air drag and each bridge also has a low profile to further reduce air drag and thus reduce noise produced by the diffuser.

Abstract: A slot diffuser includes a pair of elongate and parallel side walls spaced by pairs of bridges. The bridges include feet that slide along receivers in the side walls such that the bridges can be positioned at any location therealong and provide support to the bridges and stability to the diffuser. The bridges include slots that extend between the side rails and that receive ends of air flow control blades. The air flow control blades include an elongate planar portion supported by slot following pegs extending outwardly on either side of the planar portions to support the blades in the slots. The bridges include a spring mechanism to provide bias to the blades to prevent wedging and rattling. The bridges also include a top arcuate cover that reduces air drag and noise.

Abstract: A self-modulating diffuser for regulating the volume flow of conditioned air from a duct to a selected space, affording a high level of air mixing and sound performance combined with ready control of the space temperature comprises an adjustable square cone plaque-type ceiling diffuser with an outer cone for developing horizontal air flow, a square plaque for attachment to the outer cone and an inner dampening cone positioned intermediate the outer cone and square plaque. Separate first and second sensor means measure the temperature in the duct and in the room space, respectively, and direct digital control means respond to signals from the sensors to produce a control signal which operates an actuator mechanism for adjusting the position of the inner dampening cone.

Abstract: An air circulation and mixing device is disclosed which can cover a ceiling air ventilation duct, taking air discharged from the duct and drawing air at the room's ceiling, mixing the two, and redirecting the mixed air so that it is discharged radially and parallel to the ceiling, rather than directly downwardly. The device has an open frame whose sides may be covered with removable air filtration media and which forms a primary interior having a lower aperture and normally an upper aperture. An open-sided grille below the lower aperture forms a secondary space. A fan is mounted within the primary space and turns blades within the lower aperture and a disk at the bottom of the secondary space. An annular plate surrounding the fan housing blocks downward flow of incoming air and forces the air to flow radially outwardly around the edge of the plate, thus also insuring good mixing with the incoming ceiling air.

Abstract: An air ventilation or supply system includes a blower for generating a primary flow and an induction nozzle for inducing a secondary flow produced by entrainment of the primary flow. An inlet of the blower and an inlet for the induction nozzle are adjacent each other.

Abstract: A linear air diffuser apparatus has two parallel longitudinal rails maintained spaced by two or more transverse connectors. Two or more blade-like adjustable air flow control members extend longitudinally between the connectors. Each flow control member has a planar blade end portion at each longitudinally outer end. Each connector has an upper block and a lower block with the blade end portions received between them. One or both of the blocks has on a side facing the end portions a polymeric resiliently compressible piece that is compressed between the blocks and exerts a resilient reaction urging and gripping the end portions stably between blocks so that they are not prone to vibrate.

Abstract: An air diffuser for diffusing conditioned air into a room has a diffuser body mounted in a housing to define an air channel which narrows towards the outlet end of the housing to produce a venturi-like effect causing the air to speed up as it leaves the diffuser so that the conditioned air can penetrate stratified layers of air in the room. The diffuser body is of tapered form having a narrow upper end portion and a wider lower end portion disposed in the open, outlet end of the housing. The diffuser body has a surface which faces the internal surface of a sloping side wall of the housing and which is inclined at an angle to the vertical greater than that of the sloping side wall of the housing to provide the narrowing air channel. The diffuser body is adjustably mounted for movement relative to the housing so that the flow of conditioned air leaving the outlet end of the housing can be adjusted.

Abstract: An air bar for mounting in the ceiling system of a structure. The air bar is characterized by a pair of inwardly facing, angled and spaced air deflectors fitted with horizontally shaped top and bottom spacers at each end thereof. A barbell shaped pattern controller is laterally slidably mounted between the spacers and extends substantially throughout the length of the air deflectors, to deflect air flowing through the air bar and directionally distribute the air through an air slot between the air deflectors, into the structure.

Abstract: A piezoelectric on-off value for air conditioning comprises a bendable metal plate fixed at one end thereof; a valve member mounted on the other end of the metal plate along a ceiling plate, the value member having vent holes corresponding to vent holes in the ceiling plate, and the valve member changing the relative closure of the vent holes when the metal plate is deformed by application of voltage to the piezoelectric ceramic.

Abstract: A linear air diffuser apparatus has two parallel longitudinal rails maintained spaced by two or more transverse connectors. Two or more blade-like adjustable air flow control members extend longitudinally between the connectors. Each flow control member has a planar blade end portion at each longitudinally outer end. Each connector has an upper block and a lower block with the blade end portions received between them. One or both of the blocks has on a side facing the end portions a polymeric resiliently compressible piece that is compressed between the blocks and exerts a resilient reaction urging and gripping the end portions stably between blocks so that they are not prone to vibrate.