Abstract: The invention concerns a device (12) for controlling an air flow (F) circulating in a first heat exchanger (4) for a motor vehicle comprising at least two screens (14), the control device (12) being configured to go from a closed configuration in which the screens (14) obstruct the passage of the air flow (F) completely to an open configuration in which the screens (14) are positioned in such a manner as to allow the air flow (F) to pass with a maximum flow rate, and any intermediate configuration. According to the invention, the two screens (14) are adapted to be moved away from one another when the control device (12) goes from the closed configuration to the open configuration and to be moved toward one another when the control device (12) goes from the open configuration to the closed configuration.

Abstract: A foundation vent includes four panels arranged to form a box-shaped vent frame. Ten frame vanes are attached to the box-shaped frame. A vent shutter having ten shutter vanes with elongated oval-shaped finger grips positioned centrally on the shutter vanes is held in a slider channel positioned on the box-shaped vent frame. The slider channel is formed by a series of six tabs centrally positioned in an opening between two adjacent frame vanes. The vent shutter is held in the slider channel so that it slides with respect to the box-shaped vent frame to selectively expose openings in between the frame vanes. A locking mortar track in provided on all four panels of the box-shaped frame to securely hold it in place. The vent is preferably constructed from polypropylene copolymer that is talc reinforced and sized to evenly course with a standard size brick.

Abstract: An enclosure of an electronic device includes a chassis, a sliding plate slidably disposed on the chassis, and a pivot member. A number of vent holes and a location hole are defined in the chassis. A number of teeth are formed on a sidewall bounding the location hole. A through slot is defined in the sliding plate. A toothed rack is formed on a sidewall bounding the through slot. The pivot member extends through the through slot and the location hole. The pivot member includes a toothed portion engaging with the toothed rack and the teeth, and a smooth neck. When the toothed portion disengages from the teeth, the neck is pivotably received in the location hole, the pivot member is pivoted to drive the sliding member to slide relative to the chassis by the toothed portion rolling on the toothed rack, thereby exposing or covering the vent holes.

Abstract: An automatically operated opening access closure and venting mechanism includes a vent with one or more baffles inserted in and opening. The baffles are coupled to an actuator mechanism which operates the baffles as the door moves from a closed to an open position or conversely, from an open to a closed position. When the door is in a closed position, the baffles are closed to maintain the integrity of the door. As the door begins to open, the baffle opens thus equalizing the pressure on both sides of the door allowing the door to be easily pushed open and to close with minimal force.

Abstract: A construction machine having a flip roof top to provide space for improved ingress into and egress from the cab of the construction machine. The construction machine includes a chassis, a construction tool coupled to the chassis, and a cab mounted on the chassis. The cab has a frame that supports a back panel, a pair of opposing side panels, a front door panel and a roof panel. The back, side and front door panels cooperate to define an interior cab space. Operator controls are disposed in the interior cab space and are operatively coupled to the construction tool. The roof panel has opposing first and second edges. The first edge is pivotally coupled to the frame. The roof panel is pivotal between a closed position, wherein the second edge is proximal the frame, and an open position wherein the second edge is pivoted upward away from the frame.

Abstract: A slatted roofing device, includes a frame (1) receiving a lower series (2) of grid-type mounted slats and at least a support (3) superimposed on the frame (1) receiving an upper series (4) of grid-type mounted slats, the support (3) being transversely mobile with respect to the longitudinal direction of the slats on the frame (1) to modify the lateral position of the slats of the upper series (4) relative to those of the lower series (2), the slats shifting from a completely overlapping position when the roof is open to a partial overlapping position when the roof is closed. The device includes an apparatus for lifting the support (3) relative to the frame (1) to allow air to pass through the roof even when the series of upper (4) and lower slats cover the whole roof surface.

Abstract: In a snowmobile or other vehicle, ventilation of ambient air to the engine compartment is necessary. However, from time to time when encountering deep snow or extremely cold temperatures, it may be necessary to restrict the inflow of ambient air into the engine compartment. An adjustable air vent having a sliding ventilation grill adjusts the air flow. The air vent has actuators for adjusting the air flow that are simple and easily manually operable by an operator even when wearing gloves or mittens without the need of any tools.

Abstract: A shutter device for covering windows provides two shutters, each shutter having clear and opaque areas to provide and block vision though the shutter as one panel is moved with respect to the other. The shutter device is adaptable to semicircular, circular and rectangular windows. The shutter utilizes two panel, one fixed panel mounted on widow and one moveable panel, of clear material, such as glass or plastic, each panel has alternate clear and opaque areas. When the two panels are aligned so that clear areas are adjacent (open position), there is viewing through the window. When an opaque area is aligned over a clear area, vision through the shutter (closed position) is blocked.

Abstract: In a snowmobile or other vehicle, ventilation of ambient air to the engine compartment is necessary. However, from time to time when encountering deep snow or extremely cold temperatures, it may be necessary to restrict the inflow of ambient air into the engine compartment. An adjustable air vent having a sliding ventilation grill adjusts the air flow. The air vent has actuators for adjusting the air flow that are simple and easily manually operable by an operator even when wearing gloves or mittens without the need of any tools.

Abstract: An actuating device for actuating a shutter is provided with a vertical guiding plate formed on both sides of the shutter to extend in a lengthwise direction thereof, a united guiding groove divided into a triangular guiding groove having a widened width for guiding the vertical guiding plate and an inclined guiding groove having a narrow width and formed in an inclined form at a predetermined angle, a vertical movement member having a movement member protuberance provided with a hinge at which one end of an actuating rod is connected, the other end of the actuating rod being connected to a shutter protuberance formed on a rear surface of the shutter, and a slip prevention protuberance having a tooth shaped configuration protruding from a front surface thereof, a roller resiliently contacted on the slip prevention protuberance of the vertical movement member; and a driving motor whose rotating shaft is inserted into the roller for actuating the vertical movement member upwardly and downwardly by being supplie

Abstract: A removable light controlling blind assembly for a marine vessel or the like includes two generally circular superimposed panels. Each of those panels has a plurality of translucent horizontal strips printed thereon and a plurality of alternating light transmitting strips separating the translucent strips. The two panels are movable in a linear direction to bring the strips into registration with one another. A flexible gasket is also provided and includes a groove for positioning the blind assembly in a port or hatch in the vessel.

Abstract: A slide ventilation assembly for a roof window installation has a multiplicity of elongated walls defining an enclosed space with two of the walls extending at 90.degree. to one another, and a connector wall piece disposed between the adjacent ends of the two walls. The two walls have apertures spaced along the length thereof, and elongated ventilation slides are slidably mounted on them. The slides have apertures spaced along the length thereof and are slidable between a first position in which their apertures are aligned with the apertures in the walls. A connector connects the slides for concurrent movement thereof, and a manipulatable operator is provided to move the slides to effect alignment of the apertures in the slides with the apertures in the walls to allow air to pass through the walls and enclosed space.

Abstract: A side window arrangement is disclosed which has main and auxiliary window cutouts which are separated from one another and are arranged one behind the other in the opening direction of the window, a window side pane having an opening which can be moved into the auxiliary window cutout. The auxiliary window cutout serves as a ventilation cutout located underneath the main window cutout. This arrangement contrasts with known side windows, which, when opened by a small gap to ventilate the vehicle internal space, causes the occupants of the vehicle to be adversely affected by air eddying occurring at head level and by aerodynamic noise. In the case of obliquely previously known arranged side windows, water enters when it is raining even if the windows are only opened slightly.

Abstract: A vehicle roof having a glass lid is framed by a two-part lid frame, a glass pane of which is coated on its lower face with a thin, lattice-like sunshield, preferably applied by the screen printing process. A multilayer closure plate, slidably guided at the lateral longitudinal members of the lid frame, bears from below against the sunshield, the thin closure plate layers of which possess a corresponding lattice-like structure. The closure plate layers are displaceable upon one another and can be displaced or set one after another to provide an infinitely variable cover or exposure of the light apertures of large area of the sunshield. A drive apparatus provides for a corresponding displacement drive of the individual closure plate layers.

Abstract: The invention relates to a vehicle roof having a light-transmissive cover, which has at least one outside panel, and having a device for varying the light-transmissibility of the cover. A light-transmissive cover of flat construction and easy actuation, whose light transmissibility can be steplessly regulated over a wide range, is achieved by integrating a device of darkening elements into a transparent cover, which is of extremely flat construction, is lightweight, mechanically easy to activate, and has a short regulating distance. Especially advantageous is a device whose darkening elements are formed by two superposed polarization films that are movable relative to each other. Such a configuration facilitates a particularly flat construction, and the light transmissibility of the cover is practically steplessly adjustable in a range of 0%-100%.

Abstract: A shutter closure assembly for covering an opening in a building or the like comprises a stationary panel having a front face defined by a plurality of alternate vertical rails and slots, and a back face defined by a plurality of alternate horizontally extending rails and slots forming a substantially uniform array of openings throughout a major area thereof, and a moveable panel having a front face defined by a complementary plurality of horizontal rails formed by a plurality of horizontal slots, and a back face defined by a plurality of vertical rails formed by a plurality of vertical slots forming a corresponding array of openings and moveable relative to the stationary panel for alternately covering and uncovering the openings in the stationary panel.

Abstract: A shutter closure assembly for covering an opening in a building or the like comprises a stationary panel having a front face defined by a plurality of alternate vertical rails and slots, and a back face defined by a plurality of alternate horizontally extending rails and slots forming a substantially uniform array of openings throughout a major area thereof, and a moveable panel having a front face defined by a complementary plurality of horizontal rails formed by a plurality of horizontal slots, and a back face defined by a plurality of vertical rails formed by a plurality of vertical slots forming a corresponding array of openings and moveable relative to the stationary panel for alternately covering and uncovering the openings in the stationary panel.

Abstract: An automatic aeration window comprises a movable frame with three parallel window panes separated by gaps, a first lower passage and a second lower passage at the bottom of the window and an upper intermediate passage connecting the two at the top of the mobile frame. In order to enable a light-weight construction of the movable window frame, the first lower passage, connected to an external opening on the outer face of the window and to a first lower opening, is provided in the fixed frame of the window. A closing flap controlled by a puller is also mounted in the fixed window frame, while the second lower passage preferably also passes through this fixed frame. The invention may be used in windows to provide aeration and good acoustic and thermal insulation.

Abstract: Ventilating apparatus comprises an elongate component (10) having complementary formations (19,20) at opposite ends whereby the component is adapted to be interlocked end to end in series with another component (10) or other components (10) and/or a connecting member (59,60) or connecting members (59,60). The component (10) and connecting members (59,60) therefore provide a modular system comprising one or more standard units (10) with left hand and/or right connecting members (59,60) enabling any combination to be connected end to end in series and thereby fit any size window.

Abstract: A ventilating appartus for installation in a ventilation opening in a building foundation includes a peripheral border having detachable lateral extension tabs for selective retention to be mounted in a mortar joint in brick-type construction and, alternatively, for selective detachment for disposition flush with laterally-adjacent foundation surfaces for edgewise disposition thereon of siding in siding-type building construction. No border is utilized in an alternative embodiment of the ventilating apparatus to facilitate mounting thereof to the outward face of a building foundation as a replacement for broken and deteriorated ventilating apparatus, a separable side portion facilitating such mounting in buildings of siding-type construction. A slotted shutter-like mechanism is provided for convenient opening and closing operation of the ventilating apparatus.

Abstract: A door with shutter device, having a door panel provided with a plurality of through holes, and a shutter panel moveably disposed to overlap the door panel, the shutter panel having a plurality of through holes of the same size, configuration and arrangement as the through holes of the door panel. The shutter panel is urged by a spring to remain at a closed position where the through holes of the shutter panel are out of alignment with the through holes of the door panel. Operating means is provided to selectively move the shutter panel from the closed position to an open position where the through holes of the shutter panel are aligned with the through holes of the door panel so that one can see the object or person at the otherside of the door without opening the door, through the through holes.

Abstract: A vent window assembly or filter comprises a continuous channel frame mountable within an opening in a building for a door or window, or within an opening in a vehicle body at the side, roof or rear window area. A laminate consisting of a pair of transparent sheets of plastic material and an intermediate thin plastic screen is nested and retained within the frame. Each of the sheets have a plurality of vertically spaced rows of longitudinally spaced apertures therethrough of a dimension considerably larger than the screen apertures. The apertures in the sheets are in alignment to permit flow of air therethrough, the screen restricting the flow of dirt particles and insects. A vent closure sheet of transparent material is slidably mounted within the frame snugly engaging one of the sheets having therein a corresponding series of similar apertures aligned with the sheet apertures and adjustable for progressively displacing its apertures relative to the laminate apertures for closing off the flow of air.

Abstract: A method and apparatus for regulating an economizer damper using indoor fan air pressure is disclosed. The economizer control includes dampers powered by a motive source regulated by air pressure. An outdoor ambient thermostat and a mixed air thermostat are utilized to regulate the air pressure supplied to the motive source to effectively regulate the damper position.

Abstract: A closable ventilation grating of the type having two grids, one being slidable along the other, which is adapted for use with sealed unit insulating glass is disclosed. The grating comprises a lower, hollow member which has parallel pending flanges for mounting the grating on sealed unit insulating glass. The grating also comprises grids which are easily adaptable to a desired length as they are comprised of a number of similar, standardized sections and a standardized operating section where required.

Abstract: A window assembly for controlling light and ventilation and preventing undesired passage through the window opening has spaced horizontal fixed slats, spaced horizontal movable slats which may be moved vertically to partially or wholly close the spaces between the fixed slats, and vertically spaced tool steel bars extending across the window opening and anchored at their ends in the building structure in which the window assembly is mounted.

Abstract: To avoid or at least substantially reduce heat losses occurring with conventional registers ventilation, a register is disclosed which is assembled of two basic bodies supporting each a shutter and connected to each other through a thermally insulating layer. Preferably, the thermally insulating layer comprises insulating sectional strips and it is satisfactory to provide such strips only along the upper and lower longitudinal edges of the two basic bodies. The two shutters are coupled to each other so that they can be shifted conjointly from their closing to their open position and vice versa by means of a single drive mechanism.

Abstract: A movable member of a grille or shutter is slidable with respect to a stationary member through tongue and groove or other slidable connections, between a fully open and a fully closed position. Both the movable member and the stationary member are provided with corresponding cross bars which are spaced both vertically and equally. Facing upright rails, such as at the center, of the movable member and fixed member are provided with opposed grooves, each for reception of a vertically placed bar magnet. The magnets are placed with their opposite poles facing each other, so that the magnets will attract, rather than repel. Preferably, the closed position of the movable member is the upper position, and the magnets are directly opposite each other in this position.

Abstract: Apparatus for assisting the opening of a door when the door is subjected to added air pressure tending to hold the door closed, the door being provided with openings therethrough and including means for closing the openings but which will operate to remove the closure upon operation of means for unlatching the door.