Abstract: A fenestration assembly includes a sash, a frame surrounding the sash, and at least one screen assembly mounted in at least one of: the top portion and the bottom portion. The frame includes a top portion, a bottom portion, and two jambs forming first slots extending lengthwise along at least a portion of the jamb. The first slots each include a screen edge retention feature. The screen assembly includes a roller assembly substantially hidden from view, a screen material attached to the roller assembly, and a plurality of raised features. Edges of the screen material extend into the first slots. The raised features are attached to each of the edges of the screen material. The raised features are configured to engage the screen edge retention features and retain each of the edges of the screen material at least partially within the first slot of each of the two jambs.

Abstract: An inflatable gate seal assembly includes a dump box that is mountable on a dump truck for carrying and dumping a load. A gate is hingedly coupled to the dump box for opening and closing the dump box. A conduit is integrated into the dump box and the conduit is fluidly coupled to an air compressor of the dump truck to receive compressed air from the air compressor. A control is positioned in a cab of the dump truck and the control is in electrical communication with the air compressor. A balloon is coupled to the dump box and the balloon is in fluid communication with the conduit. The balloon is inflated when the control is put in an on condition. Thus, the balloon engages the gate when the balloon is inflated and the gate is in the closed position to inhibit debris from passing between the dump box and the gate.

Abstract: A foldable modular wall system includes a track, one or more stationary wall modules, and one or more foldable wall modules. The foldable wall modules are pivotally and slidably connected to the track such that the foldable wall modules can be selectively moved between a closed confirmation and an open configuration. The foldable modular wall system can also include power hinge jumpers through which electrical wires can nm to power electronic components embedded in or disposed on the foldable wall modules.

Abstract: A curtain assembly for hanging a shortened, lighter curtain from existing curtain ceiling tracks. The assembly uses adjustable height hangers to connect the commercially available track to existing curtain systems and a lightweight disposable curtain to hang therefrom. The brackets to attach the track to the room walls and one bracket allows for the vertical insertion of the curtain hooks onto the track. A quick load bracket gathers the curtain hooks for vertical installation through the brackets. The curtain can be installed simply and quickly by one person without a ladder.

Abstract: A patient lift system helps to lift and mobilize a disabled person in a home or in an institution with minimal effort from a caregiver. The patient lift system includes a lift, a carry bar and a hand control. The lift, the carry bar and the hand control have shapes and features that may be seen to facilitate quick and easy cleaning. Notably, gaps have been minimized for infection control purposes. Typically, a patient lift system includes an integral trolley for connecting the patient lift system to a track. For the patient lift system described herein, the trolley and lift system are separate pieces that are easily and quickly either attached or detached.

Abstract: A hinge assembly for a folding closure includes a plurality of elongated, planar panels, each of which has a pair of parallel sides, and flanges on each side with the flanges on one side extending in one direction perpendicular to a plane of the panel and the flanges on the other side extending in a second direction opposite to the one direction; and a hinge for pivotally connecting panels in side by side relationship to each other, the hinge including an elongated body having a generally triangular cross section, generally C-shaped grooves extending the length of the body proximate two adjacent corners of the body, the grooves opening in opposite directions for receiving the flanges of adjacent panels and permitting rotation of the panels about a longitudinal axis of the hinge between closure open and closed position, and opposed stops at the open outer ends of the grooves for limiting rotation of the panels between the open and closed position.

Abstract: Embodiments of the invention provide a door sealing system for an overhead door assembly of a vehicle comprises a rotating seal apparatus. The overhead door assembly includes a door frame and a door panel. The rotating seal apparatus comprises a rod, a first seal, and a second seal. When the door panel is in a closed position, the rod is actuatable, so that, when actuated, the rod is rotated, compressing the seal against the door panel and compressing the second seal against the door frame.

Abstract: A learning machine employs an image acquisition device for acquiring a set of training raw images. A processor determines a representation of a raw image, initializes a set of image representation parameters, defines a set of analysis parameters of an image analysis network configured to process the image's representation, and jointly trains the set of representation parameters and the set of analysis parameters to optimize a combined objective function. Processor executable instructions are organized into a module for transforming pixel-values of the raw image to produce a transformed image comprising pixels of variance-stabilized values, a module for successively performing processes of soft camera projection and image projection, and a module for inverse transforming the transformed pixels. The image projection process performs multi-level spatial convolution, pooling, subsampling, and interpolation.

Abstract: An arrangement in the cabin of a vehicle includes a floor, a first equipment component, a second equipment component and a partitioning device. The partitioning device is set up to provide a wall surface between the first equipment component and second equipment component largely perpendicular to the floor. The partitioning device is positionable in at least two positions along a length running between the first equipment component and second equipment component. The partitioning device is lockable in its respective position on at least one of the floor, a cabin ceiling and a cabin lining.

Abstract: An illustrative example enclosure includes a support frame having longitudinal beams and lateral channel members that define an outward facing flow passage. A first roof panel and a second roof panel respectively include lateral edges aligned with the channel members. The lateral edge of the first roof panel is situated adjacent the lateral edge of the second roof panel. An interface between the lateral edge of the first roof panel and the lateral edge of the second roof panel is situated above or within the flow passage of one of the channel members. At least one seal engages the first roof panel and the second roof panel. The seal is received in the flow passage of the channel member in sealing engagement with the channel member.

Abstract: Protective clips for movable partitions include a guard portion that protrudes from a top major surface of a base portion. The guard portion extends along the top major surface proximate to a front side of the base portion. The guard portion also may extend along the top major surface proximate to at least one end side surface at a longitudinal end of the base portion. Movable partitions include one or more such protective clips. The protective clips optionally may be used to attach a sweep strip to panels of a movable partition. Methods of forming such protective clips include molding the clips within a mold cavity.

Abstract: A vehicle structure including a roof beam and a first pillar and a second pillar each fixed relative to the roof beam. The first pillar and the second pillar are spaced from each other defining a door opening extending from the first pillar to the second pillar. A front door and a rear door are both disposed in the door opening. A panel is pivotally connected to the roof beam and pivotable relative to the roof beam to a lowered position. The panel, in the lowered position, extends across the door opening from the first pillar to the second pillar.

Abstract: A modular carpet system includes a carpet tile and an adhesive. The carpet tile is operative for resisting deformation, even under adverse conditions. In some embodiments, the adhesive may comprise a silicone-based adhesive or a urethane-based adhesive.

Abstract: A prefabricated flashing product for an opening in an exterior surface of a structure includes a generally planar flange shaped to conform to the exterior surface, the flange extending outwardly from an entire perimeter of an aperture therein that corresponds to the opening, and a return that seals to the flange about the aperture and extends substantially perpendicularly therefrom toward an inward direction of the opening. The flange and the return are monolithically formed of a waterproof material. A method of integrating a fenestration product into an opening of an exterior surface of a structure includes inserting the flashing product described above into the opening, and inserting the fenestration product at least partially into the aperture of the flashing product.

Abstract: A safety device for doors of lockable receptacles and a method of use are disclosed herein. The disclosed safety device generally comprises a base member attachable to a lockable receptacle; an arm member having a proximal end and a distal end, wherein the proximal end is attached to the base member; and a wedge member forming a portion of the arm member. Upon opening the door of the lockable receptacle, the wedge member becomes positioned between the open door and the lockable receptacle, thereby preventing closure of the door on a user's body part positioned between the door and the lockable receptacle.

Abstract: A window covering comprises slats suspended from a tilt cord such that the tilt cord may rotate the slats between an open position and a closed position. An elastic seal is provided on the slats to contact adjacent slats when the slats are in the closed position. A mechanism such as a spring or a magnet applies a closing force to the slats in the closed position separate from the tilt cord where the closing force moves the slats toward one another. An elastic seal is provided on the slats to contact adjacent slats when the slats are in the closed position.

Abstract: The pane module comprises a pane element composed by glass sheets (31, 35) and provided with a border element (37, 38) by molding. The border element is adhered to the pane element during the molding process and at least partially encases the border of at least one sheet element.

Abstract: A tower or a tower segment of a wind turbine, having a door for entering the inside of the tower, comprising a door frame, which has a door opening that is preferably closed by a door leaf, and a door frame for a door of a tower of a wind turbine, the frame having a door opening that is preferably closed by a door leaf, and a wind turbine having a tower, a door provided for entering the inside of the tower, and a staircase leading to the door on the outside of the tower, and an air passage opening in at least one advantageous location. The door frame has at least one air passage opening, particularly an air inlet opening.

Abstract: A window opening space filler for use with a window having a window opening of predetermined opening width surrounded by a window frame, to adjust the predetermined opening width to fit a window covering having a predetermined covering width, less than the opening width, and having an attachment member for attachment to the widow frame, and, a filler member separate from the attachment member and attachable to the attachment member and extending across the window opening, so that a user can reduce the width of a window opening down each side edge make the window covering fit the reduced width window opening.

Abstract: A folding accordion sweep partition assembly is presented. The partition has a plurality of partition panels, the panel having a front face, a rear face, a bottom edge, and two opposing open sided panel keyway channels. A hinge having two side walls, the side wall terminating in a hinge key hinges two panels by having a first hinge key slidably received and retained in a first partition panel keyway channel and a second hinge key slidably received and retained in a second partition panel keyway channel. The partition panel has a mounting bracket affixed to it, a bottom bracket removably retained to the mounting bracket, and a sweep affixed to the mounting bracket.

Abstract: A roll-up door assembly including a plurality of door panels; a pneumatic seal apparatus having an elastic membrane of an elongated tube disposed around a perimeter of the trailer door so as to be adjacent to the plurality of door panels, wherein pressurized air is injected into the pneumatic seal apparatus to expand the elastic membrane and to apply an outward force against multiple sides of the plurality of door panels, wherein applying the outward force against the plurality of door panels on multiple sides keeps the plurality of door panels as a single unit such that substantially less air flows through the plurality of door panels than prior to the application of the outward force to seal the trailer door.

Abstract: Movable partition systems include a vertical alignment structure including at least one roller element coupled to a portion of a movable partition and a ramp configured to abut against the at least one roller element to vertically align the portion of the movable partition to engage with a strike plate. Methods of vertically aligning the movable partition include coupling at least one vertical alignment structure to the movable partition including coupling at least one structural frame member to the movable partition and coupling the at least one roller element to the at least one structural frame member and installing at least one ramp to an overhead structure configured to abut the at least one roller element and vertically align a leading end of the movable partition.

Abstract: Movable partitions comprise a plurality of interconnected panels, at least one sheet of insulation adjacent the plurality of interconnected panels, and at least one hinge member connecting adjacent panels of the plurality of interconnected panels. The at least one hinge member comprises at least one pointed member that extends therefrom. The pointed member is at least partially inserted into the at least one sheet of insulation, and the at least one sheet of insulation is supported by a surface of the at least one pointed member that has a width that is greater than a thickness of the at least one pointed member.

Abstract: Example insulated dividers, such as curtain-doors and temporary walls for dividing areas of a building, include features that make the dividers particularly suited for food and drug related environments that demand cleanliness and require dividers to be periodically washed down to remove microorganisms and other contaminants. Some example dividers include a touch-and-hold fastener to hold a flexible insulated pad within an internal space of a pliable hollow panel. In some examples, the insulated pad is made of polyester batting with loops of fiber to which the hook portion of the touch-and-hold fastener can engage. In some examples, both the insulated pad and the touch-and-hold fastener are completely contained within the hollow panel so that neither the pad nor the fastener provides an exposed external surface for harboring microorganisms. In some examples, the pliable panel's outer peripheral edge is hermetically sealed by thermal bonding, heat sealing, welding and/or ultrasonic joining.

Abstract: In a sectional overhead garage door assembly, the problem of inefficient and/or insufficient insulation of a garage door assembly that comprises a door for closing an entrance is solved by covering joints and openings of the door assembly with isolating members so that the joints and openings of the door assembly other than the entrance remain close when the door is opened. For example, an embodiment of an insulation system includes a lateral insulating assembly to be secured to a door frame or wall adjacent the garage door; and a resilient insulating assembly is secured to at least one of the garage door along the lateral edge thereof and the lateral insulating assembly for defining an enclosure with the garage door and the lateral insulating assembly. In some embodiment, each door panel is provided with a door panel insulating assembly.

Abstract: An overhead garage door has an apparatus for pinch resistant operation. The garage door may include horizontal sections and the door may be formed from a plurality of these sections, arranged in a stack, and pivotally connected to adjacent sections. The apparatus, such as meeting rails, may be attached to adjacent horizontal sections to mask the appearance of a seam created as adjacent sections are joined or provide pinch resistant operation.

Abstract: A door assembly including a vertically moving door to permit and prohibit access through an opening which has a top, a bottom defined by a floor, and at least two sides, the door assembly. The assembly having a door body having upper and lower portions, and being mounted proximate the opening such that the lower end portion being proximate the floor when the door is in the closed position. A protective body is configured in connection with the door so as to be moveable between a first position under at least a portion of the door body lower portion when the door is in at least a partially open position and a second storage position. The protective body having at least one debris collecting surface, and opposing ends, the protective body being configured such that debris collected on the debris collecting surface will be urged toward one of the opposed ends.

Abstract: Door elements are disclosed herein. An example door element includes a first flexible door movably coupled relative to a wall between at least a first closed position to cover a first portion of a doorway, a first open position to enable a vehicle to access to the doorway, and an intermediate position to engage a first surface of the vehicle when the vehicle is adjacent the doorway. The door element also includes a second flexible door movably coupled relative to the wall between at least a second closed position to cover a second portion of the doorway, a second open position to enable the vehicle to access the second portion of the doorway, and a second intermediate position to engage a second surface of the vehicle when the vehicle is positioned adjacent the door opening, where the first and second flexible doors each deform to pivot relative to the wall.

Abstract: A window screen system including two main parts, namely, a reinforced window frame and a combined window and a force resistant flex screen system or assembly. The window frame has at least one forward and one reward vertical slot capable of receiving the combined window and flex screen. The frame is securable to a structure and extends thereinto providing for easy removal of the systems received in the vertical slots. The screen system is formed of a mesh flex screen material. Winding rods, with teeth extending therefrom, line each edge of the flex screen and engage the screen material rotatably secure the screen with the teeth. Each juncture of the winding rods is secured by a corner cap. The flex screen system is sealed with a polymer seal about the winding rods. A screen cap is securely placed along the top edge and secured by the polymer seal.

Abstract: A non-invasive door bracket assembly that does no damage to the door or the door jam. It utilizes the door jam hinge screws to support the bracket assembly reducing parts and eliminating additional holes in the door and jam, while providing higher load support. This assembly can support a variety of door products but principally a child proof door jam cover.

Abstract: Insulated tracks for use with loading dock doors are disclosed herein. In one embodiment, an insulated door track configured in accordance with the present disclosure includes a first insulator, such as a plastic material, applied to a surface of the door track that extends adjacent to the loading dock door in the closed position. A second insulator, such as a radiant barrier comprised of a thin film of a reflective material, such as aluminum, can be applied to an opposing surface of the first insulator to prevent or at least reduce radiant energy losses through the track. A gap between the first insulator and the door jamb can be sealed with a third insulator, such as a suitable strip of foam.

Abstract: The present invention relates to a louvre vane system with a frame, which houses a plurality of vanes within the frame. The vanes can be rotated between an open position, in which the edges of adjacent vanes are spaced apart and a closed position, in which the edges of adjacent vanes abut each other to for:: a substantially continuous surface. When the vanes are in the closed position, a thermal membrane, is formed by the, vanes 14 that prevents drafts and limits heat exchange from one side of the membrane to the other.

Abstract: Movable partition systems include a vertical alignment structure including at least one roller element coupled to a portion of a movable partition and a ramp configured to abut against the at least one roller element to vertically align the portion of the movable partition to engage with a strike plate. Methods of vertically aligning the movable partition include coupling at least one vertical alignment structure to the movable partition including coupling at least one structural frame member to the movable partition and coupling the at least one roller element to the at least one structural frame member and installing at least one ramp to an overhead structure configured to abut the at least one roller element and vertically align a leading end of the movable partition.

Abstract: A vertically collapsible wall partition is comprised of a plurality of interconnected horizontal wall panels pivotally interconnected to one another and forming horizontal panel joints therebetween. The panels are operated by an overhead lifting mechanism. The wall panels each have opposed spaced-apart composite walls each having perimeter seals to provide acoustic sound damping. The composite walls are formed by a face sheet secured to a front face of a core material and a backer sheet is secured to core material with an insulation material secured to the back of the backer sheet. Top and bottom horizontal seals are secured to the wall partition top and bottom horizontal wall panels. The seals and joints of the horizontal wall panels are such as to exhibit improved acoustic performance.

Abstract: A vertically collapsible weather resistant barrier for an opening, having a plurality of side frames secured along the height of side walls and/or an intermediate post defining the opening. Each side frame has a longitudinal channel along its length facing inward toward the opening. The channel accommodates sheaves extending from the barrier and by which a ceiling mounted pulley system may house and lower the barrier with the side frame. The barrier comprises a plurality of pantograph structures at opposite ends of a plurality of panels. The arms of the pantograph structure closest to the side walls house a locking mechanism thereon facing the side frame at either end of the arm that engages a latch in and a proximate arm to pull them into tight vertical alignment when substantially fully extended. The locking mechanisms are covered by an expandable bulb seal that bulges outwardly when the locking mechanism is engaged to create a seal between the pantograph and the channel in the side wall.

Abstract: A draft excluder for excluding drafts between a door and the floor. The draft excluder is made up of an elongated angled bracket, at least one clip, a flexible covering, and an elongated weight. The flexible covering can take the form of a cloth covering. The elongated angled bracket defines first and second sidewalls with an interior angle there-between. The first and second sidewalls respectively define first and second elongated terminal edges. During normal use the at least one clip holds the first sidewall of the bracket to the bottom of a door such that the interior angle faces downward and towards the floor beneath the door. The flexible covering defines a cover portion that extends between the first and second elongated terminal edges. The cover portion defines an interior surface and an exterior surface. The elongated weight is affixed to the interior surface of the cover portion.

Abstract: Door elements having FinRay structures are described herein. An example door element described herein is movable between a closed position in which the element extends across a doorway to at least partially block the doorway, and an open position where at least a portion of the element moves to a non-blocking position relative to the doorway. The door element includes a first flexible side element to transmit tensile forces and has a proximal end and a distal end. The door element includes a second flexible side element to resist compressive forces and has a proximal end and a distal end. The first and second side elements are coupled to each other at their distal ends. The element includes a plurality of connecting ribs flexibly coupled to the first and second side elements to transmit tensile forces between the first and second side elements.

Abstract: A seal, which is disposed at a vertical frame profile of a stationary door leaf or of a movable door leaf and has a sealing profile protruding from the frame profile and a deformation chamber extending in a longitudinal direction of the sealing profile. A part of the sealing profile protruding from the front side of the frame profile in cross-section forms the portion (T) of an ellipse or substantially of an ellipse, the minor axis (N) of the ellipse intersecting the wall of the sealing profile outside the frame profile.

Abstract: The present application is directed to a manual or automatic flush threshold door seal system used on folding exterior doors along with an alternate embodiment for conventional exterior entryway doors that will not impede the passage of a wheelchair. A flexible weather seal can be put in a retracted or down position within an aluminum extrusion imbedded within the threshold providing a flush access surface and may be raised up into the upright position providing an adequate weather seal.

Abstract: Mobile partitioning wall with several wall elements displaceably suspended in running rails. The mobile partitioning wall have structural units that are technically simple to manufacture and to mount and are structured to be universally usable and can be easily and variably disposed at the edge sides of individual wall elements. The wall elements have mounting elements that are horizontally and/or vertically disposed at the edge sides. Modular structural units are laterally insertable into the mounting elements.

Abstract: An inflatable barrier system for a doorway or other opening comprising a front side envelope of rectangular front elevation and dog bone shaped horizontal plane cross section, inflatable with gas and fillable with a hardening foam, combined with an inflatable back side array of tubular air beams configured with self sealant, both connected to a source of gas for inflating the fabric envelope and the back side array of tubular air beams. The front side envelope is configured for frontal resistance to predetermined levels of push, cut, puncture, flame, chemical, and ballistic attack. The system is used as a method for closing a doorway to such attacks by erecting and inflating the system within the opening such that the edges on either side of the opening are gripped between the lobes of the respective ends of the dog bone profile of the front side envelope.

Abstract: A gate includes a gate leaf which is movable between a closed and an open position, and a plurality of gate leaf elements, which are tiltable. The gate leaf includes a door leaf which is swingable around a pivot axis extending perpendicular to the tilt axes. When closed, the door leaf is mounted in an opening in the gate leaf and the door leaf extends essentially parallel to the plane of the gate leaf. A stabilizing arrangement opposes the deformation of the gate leaf and a threshold element which rests on the floor of the opening when the gate leaf is in the closed position. The height of the threshold element is essentially less than 20 mm, preferably less than 10 mm.

Abstract: An overhead garage door has an apparatus for pinch resistant operation. The garage door may include horizontal sections and the door may be formed from a plurality of these sections, arranged in a stack, and pivotally connected to adjacent sections. The apparatus, such as meeting rails, may be attached to adjacent horizontal sections to mask the appearance of a seam created as adjacent sections are joined or provide pinch resistant operation.

Abstract: The safety shield is formed of an elongate L-shaped rail shield engaged to a vertical surface adjacent a vertical rail located within the interior of a garage door. An L-shaped panel shield is engaged to the interior of each garage door panel proximate to the vertical rail. The L-shaped panel shield is on the opposite side of the rail relative to the L-shaped rail shield. A generally U-shaped end covering shield may be integral or engaged to said L-shaped rail shield, where the L-shaped panel shields are positioned interior to the panel shield face side of the U-shaped end covering shield.

Abstract: An overhead garage door has an apparatus for pinch resistant operation. The garage door may include horizontal sections and the door may be formed from a plurality of these sections, arranged in a stack, and pivotally connected to adjacent sections. The apparatus, such as meeting rails, may be attached to adjacent horizontal sections to mask the appearance of a seam created as adjacent sections are joined or provide pinch resistant operation.

Abstract: An overhead garage door having a concealing apparatus between adjoining horizontal sections of the door is provided. The garage door may include horizontal sections and the door may be formed from a plurality of these sections, arranged in a stack, and pivotally connected to adjacent sections. The concealing apparatus, such as meeting rails, may be attached to adjacent horizontal sections to mask the appearance of a seam created as adjacent sections are joined. The meeting rails may also aid in sealing the door to form a weather-tight seal and keep wind, moisture and debris out of the garage. The concealing apparatus may also be an overlapping plate with an attachment region and an overhanging region.

Abstract: A deformable screen for a window assembly including a sash movably coupled to a frame. The sash is moveable in a substantially horizontal direction relative to the frame. The deformable screen is coupled to the sash and includes at least one engagement portion slidably engaged against the frame. A spring member is coupled to the engagement portion and applies a restoring force to the engagement portion to seal it against the frame. In one option, the spring member includes a foam membrane. A method for making a screen assembly includes providing a frame and a sash disposed within the frame. A spring member is coupled around the sash and at least one engagement portion is coupled to the spring member. The engagement portion extends between the spring member and the window frame, in one option. In another option, the at least one engagement portion is slidably engaged against the frame.

Abstract: An articulating door generally includes a first door panel having a bottom section, the bottom section defining a first bottom portion, a second bottom portion and a first bottom channel therebetween. A second door panel is coupled for rotation with the first door panel. The first door panel and the second door panel moving between an open condition and a closed condition. The second door panel has a top section proximate the bottom section of the first door panel. The articulating door also includes a blocking member having a ramp portion. The blocking member extends from the top section of the second door panel. At least a portion of the blocking member is received by the first bottom channel of the first door panel in the closed condition. The ramp member is disposed between the first bottom portion of the first door panel and the top section of the second door panel.

Abstract: An improved mechanism for the operation of multiple panels door with increased insulating properties comprises a means that keeps the door panels away from the seal as they move up or down vertically and that brings the panels tightly against the seal when the panels have completed their vertical course. In the prior art, a multiple panel door follows the path of the guide rail where in this instant invention, when the panels have run their course along the path of the guide rails, they are moved away from the guide rails and against the door frame, which results in the door panels to apply pressure against an insulating strip.

Abstract: Modular inflatable cover for buildings, comprising separate coaxial conduits (30) secured together by tensionable link (50) and fluid-connected by coaxial inflatable tube (24). Tube (24) securely embraces sliders (32) that in turn closely but freely embrace conduits (30). Sliders (32) are urged by springs (34) to keep tube (24) taught. Elastic cinctures (26) on tube (24) and springs (34) tensionably cooperate against inflation means to provide reliable control of openings between adjacent modules in an assembly. Conduits (30) are securely torqued to ground anchors (40) by coupling (42). End covers (44) and sliders (32) are provided to compensate for and facilitate length shrinkage of tube (24), upon inflation. The present invention provides a variable cover with integral support that is uniquely capable of exploiting canyons and other ground depressions for an unprecedented scale of environment control. Applications include greenhouses, shutters, insulation and shelters.