Abstract: Provided is a front wing apparatus which includes a plurality of front wings, a lower spacer which is rotatably coupled to lower portions of the front wings and laterally connects the lower portions of the front wings, an upper spacer which is rotatably coupled to upper portions of the front wings and laterally connects the upper portions of the front wings, a spacer bar which vertically connects the lower spacer and the upper spacer, and a wing knob bar to which the spacer bar is fitted and which is coupled to the wing knob, wherein, when the wing knob is rotated in a left-right direction, the spacer bar fitted to the wing knob bar is moved in the left-right direction, and the front wings rotatably coupled to the lower spacer and the upper spacer connected to the spacer bar are rotated in the left-right direction.

Abstract: A device for controlling a hot air flow, for example in an engine compartment of a motor car, includes at least one wing connectable to an air inflow opening of an engine compartment of a motor car and movable between a position for closing and a position for opening the air inflow opening. A drive module is configured to apply a predetermined thrust force and a transmission apparatus is capable of transmitting the thrust force from the drive module to the wing to move the wing from the closed position to the open position and vice versa. The drive module includes at least one actuator made of a shape-memory alloy such that the thrust force is applied when the actuator reaches a predetermined temperature.

Abstract: An air register having a plurality of pivotable vanes, including at least two horizontal vanes, each horizontal vane having an outer section and an inner section, and a linking member connecting the inner sections together. The outer sections of the horizontal vanes are each pivotably connected to a housing of the air register, and at least one of the inner sections includes an inner pivot pin connected to a annular grommet, which is in turn, connected to the linking member. The annular grommet is disposed within a cavity of the linking member and contributes to generating effort felt by a user when adjusting a pivot position of the horizontal vanes.

Abstract: An indoor unit for an air-conditioning apparatus, which prevents adhesion of dew condensation water to up-and-down airflow direction louvers while directing blowing air to an intended direction, includes: a casing; an air inlet; an air outlet; an indoor heat exchanger and an indoor fan; an up-and-down airflow direction louver; and an up-and-down airflow direction auxiliary louver. The up-and-down airflow direction louver includes: an upstream guide surface and a downstream guide surface. The up-and-down airflow direction auxiliary louver includes an upstream end portion, the upstream end portion being positioned on an inner side of the air outlet passage relative to the downstream guide surface and being positioned on the upstream side relative to a downstream guide surface distal end portion of the downstream guide surface, which is an end portion of the downstream guide surface on the downstream side of the air outlet passage.

Abstract: An indoor unit for an air-conditioning apparatus includes a box-shaped casing having an air inlet in a top surface of the casing and an air outlet in a bottom surface of the casing, an air-sending device disposed in the casing and configured to suck in indoor air through the air inlet and blow conditioned air through the air outlet, a heat exchanger disposed in the casing and configured to cause the indoor air to exchange heat with refrigerant to supply the conditioned air, a vertical deflector, a first auxiliary vertical deflector, and a second auxiliary vertical deflector each rotatably arranged in the air outlet and configured to change an air flow direction in a vertical direction.

Abstract: A heating, ventilation, and air conditioning (HVAC) system may be zoned into one or more zone. The HVAC system may include one or more register vents that may include vent dampers. The HVAC system may be controlled by an HVAC control system including a communications port or block, a controller operatively coupled to the communications block, and a user interface. The controller may receive sensed data received at the communications block from sensors of the HVAC system. Based, at least in part, on the received sensed data, the controller my determine recommended settings for at least one of the manually adjustable register vent dampers and display the recommended settings on the user interface.

Abstract: An air flow direction adjusting device of an air-conditioning apparatus includes: a base member including attachment shafts; air flow direction adjusting members individually attached to the attachment shafts such that the air flow direction adjusting members are allowed to rotate; and a link plate configured to rotate the air flow direction adjusting members in an interlocked manner. At least one of the air flow direction adjusting members includes a rotation shaft attachment portion attached to the corresponding one of the attachment shafts, a link plate engagement portion to be engaged with the link plate, and an operation member attachment portion to which a manual operation member for manually adjusting orientation of the air flow direction adjusting members is attached. The manual operation member is not attached to at least one of the air flow direction adjusting members.

Abstract: An external active air flap for a vehicle engine room includes a fixed flap fixedly installed at a front side of a vehicle and protruding in a forward-backward direction of the vehicle, which acts as a radiator grill. A hinge shaft is disposed inside and along the fixed flap in a left-right direction of the vehicle. A movable flap is disposed on an upper surface of the fixed flap, and a back end of the movable flap is connected with the hinge shaft. The movable flap rotates about the hinge shaft to open and close an opening of the external active air flap by a pressure of external air flowing into the vehicle.

Abstract: A vehicle air vent includes a plurality of vanes installed in an air discharge port in a body to be rotatable in a horizontal direction. By coupling the vanes to each other, when a knob provided on one vane is operated, all of the vanes are rotated together, and a hinge shaft provided at each of an upper end and a lower end of each vane is inserted into and connected to a hinge hole of a spacer provided at each of an upper end and a lower end of the air discharge port of the air vent body. A damper bushing connected to a front end portion of the vane hinge shaft passing through the hinge hole is installed below the hinge hole of a spacer to which each hinge shaft of the vane provided with the knob is connected.

Abstract: An air conditioning indoor unit includes a movable first air direction adjustment plate that changes an up and down direction of the outlet air, a second air direction adjustment plate disposed adjacent to the air outlet, and a control unit that controls postures of the first and second adjustment plates. The second adjustment plate has at least a front end portion housed in an indoor unit front portion outside a blowing path when housed. In a Coanda effect utilization mode the control unit controls the postures of the first and second adjustment plates such that the second adjustment plate is spaced apart from the indoor unit front portion and a height position of a rear end portion is lower than when operation is stopped, and the adjustment plates form a predetermined angle to change the outlet air to a Coanda air flow along an undersurface of the second adjustment plate.

Abstract: A register has a narrow and long air blow outlet long in the longitudinal direction and short in the shorter-side direction, and is provided with a front movable louver along the longitudinal direction inside the air blow outlet. The front movable louver has one vertical fin having an annular fin portion at the center. The annular fin portion is formed so as to have a substantially rectangular opening in an air blowing direction in a front view, and has flat plate portions on both side portions. Upper shaft portions are provided on both end portions of the annular fin portion via upper fin portions, and lower shaft portions are provided via lower fin portions. The upper shaft portions and lower shaft portions are supported turnably on bearing portions of fixed walls.

Abstract: A louver system for controlling airflow in a duct from a forced air heating, ventilation, and air conditioning (HVAC) system with a housing and a louver located on a mounting fascia. The system having a longitudinal slat located in the perimeter wall that is movable between the fully open position and the fully closed position via a slat positioning assembly. The slat positioning assembly is powered by a mainspring assembly. A winding assembly is operatively coupled to the mainspring assembly which is wound by a motor or a hand crank. A local control system having a microprocessor, a transmitter, and a receiver sends a positioning signal to the slat positioning assembly that rotates the slat to a specified position via power from the mainspring assembly.

Abstract: An air valve arrangement for a motor vehicle, comprising a frame and an air valve provided on said frame so as to be rotatable thereto about an axis of relative movement (R) in opposing directions of relative rotation, the frame comprising an air passage opening, and the air valve is provided in such a way on the frame that it is rotatable between a shut-off position and a passage position, the air valve in the passage position reducing a passage opening area of the air passage opening less than in the shut-off position, and further comprising a drive, which is designed to drive the air valve in at least one first direction of relative rotation about the axis of relative movement (R) for relative rotation, characterized in that the air valve is coupled to a preloading device, which preloads the air valve in a direction of relative rotation.

Abstract: A shutter set includes a first vane and a first vane stop. The first vane is moveable between a first position and a second position. The first vane stop is selectively moveable between a locking position and a free position, relative to the first vane. The first vane stop is configured to apply a bias force or is configured to bias the first vane by a predetermined clearance distance when the first vane stop is in the locking position, and is configured to allow movement of the first vane between the first position and the second position when the first vane stop is in the free position.

Abstract: A damper for controlling fluid flow includes a main body, a stator and a rotor. The stator may be carried by the main body and include at least one blade having a predetermined shape. The rotor may be moveably connected to the stator and carried by the main body. The rotor may include at least one blade having a predetermined shape and may be moveable between an opened position and a closed position. The predetermined shape of the at least one stator blade and the at least one rotor blade may form a converging-diverging nozzle, and the stator and the rotor may be carried by the main body so that fluid flows through the main body substantially perpendicular thereto. The opened position may be defined as the at least one stator blade being aligned with the at least one rotor blade, and the closed position may be defined as the at least one stator blade being offset from the at least one rotor blade.

Abstract: A cooling system for turbine engines for controlling cooling of rotor cooling air and heating of fuel gas is disclosed. The cooling system may be formed from a housing formed from a main plenum, a rotor air cooler positioned at least partially in the main plenum and a fuel gas heater positioned at least partially in the main plenum downstream from rotor air cooler. The cooling system may include a by-pass plenum for returning used cooling air back to a region upstream of the rotor air cooler. An exhaust fluid control device may control fluid flow out of the first exhaust opening at the second end of the main plenum, and a by-pass fluid control device may control fluid flow into the by-pass inlet opening of the by-pass plenum. The control devices and a fan may control circulation of cooling fluids through the main plenum.

Abstract: An exhaust device applied to an electronic device is described. Memory deformable elements of the exhaust device are heated to shrink, and meanwhile, guide vanes located on an air outlet are driven to rotate and swing back and forth between a left outlet position and a right outlet position, such that the exhaust device reciprocatively changes an outlet position without requiring any external power.

Abstract: An air conditioning apparatus has a cool-side door device and a heating-side door device between an evaporator and a heater core. The cool-side door device is configured to open and close a cool air passage through which a cool air generated by the evaporator flows. The heating-side door device is configured to open and close a heating air passage through which the cool air flows to be heated by the heater core. At least one of the cool-side door device and the heating-side door device is constructed of a plurality of doors. The plurality of doors is configured to begin to open successively when being opened from a fully closed condition.

Abstract: A damper support mechanism to reinforce a plurality of damper blades which are actuated together. When the blades are in a closed position, actuating brackets attached to each damper blade and a vertical bar are used to support the blades and preventing them from bending or breaking. The vertical bar is fixedly held in a stop mechanism located at the top or bottom of the vent opening.

Abstract: A method and a throttling device to control an air flow in a channel (1) or in a channel system. The air flow is brought to pass at least a first channel portion having a successively tapering channel cross section area being formed by a adjustable throttling device (4) in the channel, the air thereafter is led to an other channel portion having a cross section with an increased throttling formed by the adjustable throttling device, to continue flowing in the channel portion with the increased throttling over a distance being considerably longer than the distance between the outer wall of the throttling device and the inner wall of the of the channel portion to thereafter leave the second channel portion with the increased throttling at a third channel portion and be transferred into the not throttled channel.

Abstract: A cold air supply and control device for a refrigerator is provided. The cold air supply and control device includes a cylindrical, duct main body having an inlet that allows cold air generated in a heat exchange chamber to be introduced thereinto and an outlet that supplies the cold air introduced through the inlet to a refrigerating chamber. The duct main body is pivotably installed to at least one of both side surfaces of the refrigerating chamber. An opening and closing piece is fixed to the side surface of the refrigerating chamber and selectively opens and closes the outlet according to a rotation of the duct main body. An interlocking plate formed below the outlet of the duct main body rotates the duct main body by a load of a shelf so as to open the outlet. In addition, a torsion spring is installed between a surface of the refrigerating chamber and a front or rear surface of the duct main body, and elastically supports the duct main body in a direction in which the outlet is closed.

Abstract: An improved diffuser connectable to a duct of a ventilation system has a diffuser body, a collar extending outwardly away from the diffuser body, and a conduit slideably mounted in the collar. The conduit is slideably extendable from a retracted configuration, wherein substantially all of the conduit is enclosed in the diffuser body and the collar, into at least one extended position wherein at least a portion of the conduit is extended out of the retracted configuration away from the diffuser body and out of the collar for connection to the duct. Thus, the diffuser may be compactly stored for transport in the retracted position and then extended for attachment to the duct in the extended configuration. A retaining member on the conduit prevents the conduit from being involuntarily retracted back into the retracted configuration. A conduit for attachment to a diffuser is also provided.

Abstract: In order to provide a simple design of ventilation device which has a relatively open aperture of pleasing aesthetic appearance, there is provided a face 2 for facing into a room, the face including an aperture 3. Three closure parts 5 are provided for closing the aperture 3. The closure parts 5 are rotatably mounted adjacent to the aperture 3 about pivots 9 located around the periphery of the aperture. A drive means is provided for moving the closure parts between an open position and a closed position. A suitable fan 6 can be provided for drawing air through the aperture when the closure parts are in the open position. In a first aspect of the invention, the closure parts 5 each comprise closures surfaces having edges, the edges abutting one another in the closed position. In a second aspect of the invention, there is drive member 12 for contacting a drive part 11 of a closure part 5, the drive part 11 being located close to the pivot 9.

Abstract: An air-conditioning resistor has a panel member formed with an opening for an operating element and an airflow port, a retainer formed on the panel member so as to communicate with the airflow port and to define interiorly an airflow passage for allowing air-conditioning air to flow therethrough, a lateral fin pivotably supported in the retainer and being capable of adjusting the wind direction of the air-conditioning air in the vertical direction, a vertical fin pivotably supported in the retainer and being capable of adjusting the wind direction of the air-conditioning air in the lateral direction, and a spherical operating element which can operate the vertical fin and the lateral fin simultaneously and has a partial spherical surfaces arranged so as to project from the opening for the operating element.

Abstract: An air-guiding appliance (10) for the directionally defined introduction of air supplied on the rear side of the appliance into a space (22), in particular interior of a vehicle, having a housing (26), an air-guiding guiding device (12) which has recesses on the front side and by means of which the direction of the air flowing out into the space (22) can be defined, means (16) for setting the direction of the air-guiding device (12) and, if appropriate, means for setting the quantity of air flowing into the space, an air-guiding body (30) or an air-guiding plate which has through-going recesses (32) which correspond with the front-side recesses and the air-charged rear side, the air-guiding guiding body (30) or the air-guiding plate consisting of elastically deformable material, there being means (40.1, 40.

Abstract: A programmable remote-control motion vent outlet includes an air vent arrangement and a control device. The air vent arrangement includes a ventilating guide adapted for mounting at a ventilating air outlet, wherein the ventilating guide has a ventilating slot for guiding an airflow passing from the ventilating air outlet to outside, a plurality of vent blades rotatably mounted to the ventilating guide for selectively allowing the airflow passing through the ventilating slot. The control device is adapted for remotely switching the vent blades between an air passage position and an air blockage position. In which, at the air passage position, the vent blades are rotated to open the ventilating slot respectively for allowing the airflow passing therethrough, and at the air blockage position, the vent blades are rotated to close the ventilating slot respectively for blocking the airflow passing through.

Abstract: An outlet for a climate control system includes a support member and multiple vanes pivotally connected to the support member. The outlet also includes a link attached to the vanes such that the vanes are pivotable in unison. Furthermore, the link comprises a soft, rubbery material having a Shore A hardness in the range of 40 to 80.

Abstract: A motor vehicle cabin has four seat positions and a heating and ventilating apparatus which includes means for producing hot and cold air streams, temperature control means, air distribution ducts having outlets at different points in the cabin at each seat position, and distribution means for adjustably distributing the mixture of the cold and hot air streams between the various air distribution ducts. These ducts include ducts which are open in at least two different points in the rear seat positions, each of which has its own temperature control means for adjusting the air temperature at that position, and means for adjusting the flow of air to that position.

Abstract: An air conditioner outlet vent device includes a housing having a blow-out hole at its front end; a plurality of fins which are supported in parallel in the blow-out hole and each of which is capable of pivoting about its axis, the axes being parallel to one another; a common link which extends in an arrangement direction of the fins and to which the fins are pivotably connected at their rear ends; a pair of outer fins disposed at opposite ends in the arrangement direction of the fins, the outer fins each integrally including a shield plate which protrudes toward one of a pair of sidewalls of the housing so as to define opposite ends of the blow-out hole. In this device, a distance between a support point of each of the outer fins in the housing and a linkage point of the outer fin to the link is set larger than a distance between a support point of each of the fins other than the outer fins and its linkage point to the link.

Abstract: A louver with a slidable face plate may be used to direct fluid flowing through the louver in a desired direction (e.g. right or left) Vanes of the louver may include pinions that couple to rack gears of a housing and a face plate. Sliding the face plate may rotate louver vanes so that fluid flowing through the louver is directed in the desired direction. The face plate may also be rotatively mounted to the housing so that the face plate has a limited amount of rotational movement. Rotating the face plate may allow control of direction of fluid flow through the louver in directions other than the direction controlled by sliding the face plate (e.g. up and down).

Abstract: An air conditioner outlet vent device 1 in which one of a blade and a housing is molded as a primary molding having a shaft hole by primary injection using a first synthetic resin, the other is molded, within a secondary mold die where the primary molding has been set, as a secondary molding having a support shaft by secondary injection using a second synthetic resin so that the shaft hole and the support shaft are fitted together at the same time as they are molded, thereby enabling the blade to pivot within the housing. The first and second synthetic resins are of the same synthetic resin system, and an additive for suppressing shrinkage in cooling and solidifying it after injection molding is added to the first synthetic resin so that the percentage mold shrinkage of the shaft hole becomes smaller than that of the support shaft.

Abstract: Inside a blown-out air duct in the air conditioner through which conditioned air reaches a blowing-out port, there is provided a rectifying box having a air passage therein, for rectifying a flow of the conditioned air toward a predetermined flowing direction in order to prevent any dew condensation at the blowing-out port in the air conditioner. In the meantime, in order to suppress noise, rectifying plates for reducing an inflowing angle of air flowing into the fin tips of a heat exchanger are interposed between an axial fan and the heat exchanger for taking in the air from the axial fan for heat exchanging.

Abstract: A system for controlling the opening and closing of vents within a structure. The system includes a plurality of vents positioned around the structure and a control panel is centrally positioned in a readily accessible position within the structure. The vents each include a cover plate having a recess extending therethrough a plurality of louvers positioned in spaced parallel relationship within the recess and a device for automatically pivoting the plurality of louvers between an open position and closed position. The control panel includes a plurality of control buttons, each control button controlling pivoting a respective one of the plurality of louvers between the open and closed positions. A lever connects the plurality of louvers within each vent together causing the louvers to move together. The pivoting device for each vent includes first and second solenoids and a latch and spring device connected between both the first and second solenoids and the lever.

Abstract: Air conditioner which can adjust a direction of an air-flow being discharged into a room. The air conditioner has blades for controlling the air flow direction and a connecting bar for connecting the blades such that the blades rotate together. The blades and the connecting bar can be reassembled. The air conditioner can adjust the flow direction of the air discharged from the air conditioner, thereby uniformly conditioning the inside of a room. In addition, even if hinge bars which connect the blades and the connecting bar are damaged, the blades and the connecting bar can be reassembled.

Abstract: An air outlet assembly includes a housing secured to a structure. A plurality of air directional fins, i.e., louvers or vanes, extend through the housing. The housing includes a plurality of receiving apertures. The receiving apertures receive bosses of the louvers therein. The receiving apertures define a boss surface and a spring surface. The boss surface has a radius of curvature equal to that of the boss being inserted. The spring surface has a radius of curvature greater than that of the boss being inserted. Two extensions are cut away on either side of both the boss surface and the spring surface to define the amount of effort required to rotate the boss when it is inserted into the receiving aperture. An opening is cut away adjacent the receiving aperture to further control the resilience of the spring surface as it abuts the boss inserted into the receiving aperture.

Abstract: An air conditioner includes an air inlet, an air outlet, a heat exchanger disposed between the air inlet and air outlet, and an air direction control mechanism at the air outlet for regulating a direction of air discharge. The regulating mechanism includes a support member having slots, and a plurality of vanes each having a projection configured correspondingly to the slots so that once the projections have been inserted through the respective slots and then rotated, the vanes are secured to the support member. Each projection includes a hinge axle about which the vane rotates, and a pair of compression protruders projecting from opposite sides of the hinge axle. The protruders bear elastically against one surface of the support member to pull a flange portion of the vane into engagement with another surface of the support member. One of the protruders of each vane carries a fixation axle which snaps into a respective open-sided hole of a connecting member.

Abstract: 1. Heating and/or air-conditioning installation, especially for a passenger compartment of a motor vehicle.2.1 In known installations for heating and/or cooling, hinged flaps are employed as control means for distributing the air, which flaps need a large mounting space.2.2 It is proposed that a mounting frame with hinged or sliding lamellae be inserted into the free cross-sections of each of the channels to be controlled.2.3 Use of the motor vehicle air-conditioning systems.

Abstract: An air nozzle has an air nozzle body and a lamella arrangement for directing the air flow exiting from the air nozzle. The lamella arrangement includes first lamellas connected to the air nozzle body so as to be pivotable about parallel-extending first pivot axes. A roller is fastened within the air nozzle body so as to be pivotable about a second pivot axis. The roller has second lamellas positioned slantedly to the second pivot axis. The second pivot axis and the first pivot axes extend parallel to one another.

Abstract: An air conditioner includes an air inlet, an air outlet, and a heat exchanger disposed therebetween. Adjustable blades extend across the outlet for controlling the direction of travel of air through the outlet. A door is movable for opening and closing the outlet. A timer counts a time interval following the input of an operation start signal or an operation stop signal and prevents the air conditioner from being started or stopped until a predetermined interval has elapsed. Following the elapse of the time interval, and before the opening or closing of the door, the blades are moved to an out-of-the-way position to avoid obstructing the movement of the door.

Abstract: A valve body having a circular throat and three vanes mounted for rotation within the circular throat of the valve body. The three vanes comprise two outlying vanes, each having two opposed circular peripheral edges configured so that one of the two opposed circular peripheral edges fits against a circular throat when the vanes are in the closed position. A central vane, preferably of hour glass configuration, is located between the two outlying vanes so that all three vanes nest within the circular throat and against one another when the valve is a closed position. Each of the vanes has a symmetrical axis of rotation and is mounted within the circular throat of the valve body so as to rotate about the symmetrical axis.

Abstract: This invention provides an air blowing direction adjusting apparatus for an air conditioner providing any desired blowing directions for a heat-exchanged air to be discharged indoor, the apparatus including a dynamic force generating unit mounted upon one side of a main body of the air conditioner and having a shaft, cams coupled to the shaft and rotated in a forward or reverse direction with the drive of the dynamic force generating unit, moving units disposed to bring into contact with the cams for conversion of rotary motions of the cams into linear motions of the moving units, whereby the air blowing direction adjusting unit is rotated, and elasticity units coupled to one side of the moving means to resiliently operate on the moving units.

Abstract: In order to be able to obtain in spite of individual adjustment possibilities for defined directions of air flow a uniform front design on the interior side that is not disturbed by different positions of deflecting fins or adjusting elements, deflecting fins (L1 to L6) behind a flow direction-neutral front baffle (F) can be driven into a corresponding dwelling position by a brief adjusting pivot motion with subsequent resetting of the front baffle (F).

Abstract: A construction of air conditioner louver having a louver body in which the air inflow side and the air blowout side communicate with one another, and a plurality of rotatable fins for regulating wind direction which are disposed at predetermined intervals via a rotating shaft in the louver body, wherein the fin is bent at a position near the rotating shaft portion and is formed into a bent plate shape such that both end portions are disposed downward.

Abstract: An air conditioner includes a housing and a flow control blade mounted in an air discharge outlet of the housing. The blade is rotatable to various positions of adjustment about an axis defined by hinge pins of the blade mounted in hinge holes of the housing. A plurality of the hinge pins extend in the same direction and are of progressively different lengths so that when the blade is installed in the housing, the hinge pins can be successively inserted into their respective hinge holes; the need to simultaneously align all hinge pins with their hinge holes is avoided. A hinge pin disposed at one end of the blade extends in a direction opposite the other hinge pins and is inserted into an open end of a slot formed in the housing.

Abstract: A flow of air from an air discharge passage has its direction of flow controlled by a series of louvers arranged to swing horizontally back and forth. Each louver has a hinge pin rotatably supported to form an axis of rotation. A connecting member interconnects a plurality of the hinge pins to transmit rotational movement between those hinge pins. The connecting member is attached to each hinge pin by a flexible connection enabling the hinge pin to rotate relative to the connecting member. The connecting member is disposed within a member which shields the connecting member from the air flow.

Abstract: A louver decreasing the total number of required louvers, reducing the manufacturing cost, and obtaining the excellent external appearance. A louver 20 of a device for shifting the wind direction 11 provided at a blast port 83 of a air-conditioner 10 having a first wind rectification surface 21 which is in a plane form, parallel to the blast direction, and a second wind rectification surface 22 which is in the plane form, positioned in a parallel state to the first wind rectification surface 21, and connected in a stair form by a difference of elevation surface 23, and is positioned so that the difference of elevation surface 23 faces the blast source at a slant.

Abstract: A diffuser air outlet includes a plurality of directional vanes journaled generally parallel to each other, and a vane linkage arm assembly for connecting the directional vanes into at least two distinct groups and for moving the distinct groups between a focused position and a diffused position.

Abstract: A method of and an apparatus for driving wind direction control louvers of an air conditioner, capable of accurately controlling the wind direction to be a desired direction by accurately driving a horizontally-extending control louver or a vertically-extending control louver adapted to control the wind direction of the air conditioner. The method includes a time measuring step for measuring the time taken for the control louver to be driven a predetermined amount, and a driving step for comparing the measured time obtained at the time measuring step with a reference time and increasing a drive force for the control louver when the measured time is more than the reference time while driving the control louver by a normal drive force when the measured time is not more than the reference time.

Abstract: A retrofittable heating and air conditioning system for a single family dwelling including a heater and air conditioning furnace system connected to individual zones of a building by a series of output ducts. Each opening of a duct to an individual zone may have a unique, fully sealing, controllable output register assembly. Also, in each zone is a thermostat for sensing the zone temperature and for providing a means for the user to control the temperature of that zone. The system further includes a master controller with such temperature controlling features as a universal zone controller, individual zone controllers, and a timer. Finally, the system includes a central controller for controlling the register assemblies and the air conditioning, heating, and fan with respect to instructions set by the individual zone registers and the master controller.

Abstract: The direction of air flow in an air blower is controlled by a plurality of rotationally adjustable blades (vanes) extending across an air flow passage. A motor is connected to the blades for rotating the blades between passage-opening and passage-closing positions and intermediate positions therebetween. A sensor senses the angular position of the blades and supplies a signal to a controller which compares that signal to a signal representative of a selected angular position of the blades. If the blades become-displaced by a force independent of the motor, the sensor signals the controller of such displacement, whereupon the motor is actuated to return the blades to the selected position.