Abstract: Several embodiments of a portable window insert for the temporary distribution of utilities, e.g., heat, air-conditioning, electricity, internet cables, water, and telephone cables through a window opening are described. All the devices are foldable for ease of portability and can be expanded to be secured in the window opening while minimizing air leakage through the window. In one embodiment a main panel has a pass-through opening through the panel for the utility lines, a handhold opening and a slider panel slidably engaged with the main panel. A flexible sealing member surrounds the pass through opening. A sealing panel is slidably mounted to the rear face of the main panel that may be selectively positioned to cover the pass-through opening or to uncover the pass-through opening. When the slider panel is in a retracted position the pass-through opening is covered by the slider panel and the hand hold is exposed for use and ease of portability.

Abstract: A decompression panel for use in an aircraft assembly includes a body portion including a top end and a bottom end, and an array of openings formed in the body portion. The openings in the array progressively decrease in size along a height of the body portion from the bottom end towards the top end.

Abstract: A ventilation device for mounting in a wall of a building includes a supporting framework adapted for mounting in the wall and forming an air flow passageway for flow from the exterior of the wall to an opposite side. A vent flapper is pivotally mounted in the framework for selective movement within the framework between a closed position where air flow through the passage is prevented and an open position where air flow is allowed. Thermal insulation material is fixedly mounted on or in the vent flapper and is arranged to extend across the air flow passage in the closed position of the vent flapper. A handle can be mounted on an interior-facing side of the flapper for moving it between the closed and open positions. An exemplarily version of the device includes a vent cover mounted on the supporting framework at an exterior end of the air flow passage.

Abstract: A trickle vent such as might be used in association with commercial windows is formed from PVC tubing in two convoluted paths. One or more expansion chambers are provided at turns or directional changes within the tubing which reduce or eliminate noise transmission through the vent. Where a plurality of expansion chambers are used, each chamber may be of different length to dampen a different portion of the acoustic spectrum. In a preferred embodiment, the expansion chambers are filled with an acoustic-type foam, and the ends are not completely sealed. The tubing preferably bridges two extrusions that form a supporting housing for the vent, and by using two separate extrusions bridged by the tubing, both thermal and acoustic isolation are maintained.

Abstract: A window assembly (1) enabling an innovative manner of adjustably allowing an air circulation between an outside environment of the window assembly (1) and an inside environment of the window assembly (1), the inside environment not being affected by wind and/or precipitation conditions in the outside environment as a result of said circulation. The window assembly (1) comprises a bottom section (15) and at least one intermediate section (17) placed above the bottom section (15) and operatively connected thereto, an air circulation being carried out between a front side (11a) of the bottom section (15) and a rear side (13b) of the intermediate section (17) in an indirect manner via a bottom side (19) of the intermediate section (17). Regular means (21) are also provided for regulating the passage of air through said bottom side (19).

Abstract: A controllable slot ventilator has a housing and a closure member pivotably mounted on the housing to selectively close a vent in the housing. The closure member is supported on linking elements which are mounted on the closure member. The linking elements are arranged so as to rotate when the closure is moved between the open and closed position. The angle between a line, passing between the pivot points of the linking element, and the general plane of the closure member increases when the closure member moves to the open position.

Abstract: Interior ventilation adjustment device including a first seat which is arrangeable in a building partition and which is provided with a first opening communicating with the building exterior and a second opening communicating with the building interior. The device further includes a pivoting shutter element for closing said second opening actuated by a lever accommodated in a box-like structure which exclusively opens to the building interior. The shutter element is accommodated in the first seat so as to be out of sight from the building exterior.

Abstract: A slot ventilator (1) comprises an elongate facing strip (7) which is movable on parallel-motion links (12) between a closed position in which it seals a slot (4) in a backing member (3), and a forward, open position. The parallel-motion links (12) are pivotally secured at one end of a rearwardly-extending rib (8) at the rear of the facing strip (7), and at the other end to a pair of parallel rearwardly-extending mounting flanges (5) behind the backing member (3). When the facing strip (7) is in the closed position, the pivotal connection (13) between the link (12) and the flanges (5) is accommodated within a cutout portion (18) of the rib (8), so enabling the overall depth of the ventilator to be reduced.