Abstract: The acoustic shutter assembly (1) includes at least one window pane (2, 3) arranged in a frame (4). At least one ventilation duct (7) is arranged in the frame between an outer ventilation opening (8) and an inner ventilation opening (9), extending between a first layer of sound absorbing material arranged at an inside (5) and a second layer of sound absorbing material arranged at an outside. A number of acoustic reflectors (12) in the form of plate material are arranged between the first and second layers of sound absorbing material so that the ventilation duct is separated into a number of respective ventilation channels (13) formed between the acoustic reflectors. Each ventilation channel changes direction at least once between the outer ventilation opening and the inner ventilation opening, thereby at least substantially blocking any linear path from the outer ventilation opening to the inner ventilation opening.

Abstract: A scissor-type guide for guiding extension and retraction of lamellae. The scissor-type guide includes at least two scissor links, each having a first and second scissor members. The guide further includes a first rotational joint formed between the scissor members of each of the scissor links, and two second rotational joints formed between first ends of a first scissor member and a second scissor member of a first scissor link, and respective ones of second ends of a first scissor member and a second scissor member of a neighboring second scissor link. A spring member is formed between the scissor members at a first rotational joint, or between a first scissor member of the first scissor link and the first scissor member of a neighboring second scissor link at a second rotational joint.

Abstract: The invention relates to a system (1?) for closing an opening (2), the system (1?) comprising a scissor-type guide (20) comprising a fixed first end (20?) and a free, second end (20?); a tilt bracket (70) arranged spaced apart from the first end (20?) at a fixed distance in a first direction (D1) a plurality of lamellae (30), each lamella (30) having an elongate plate shape extending in a second direction (D2) the lamellae (30) being guidable between a retracted position, and an extended position; a conveyor (40) a tilt rail (60) for tilting said lamella (30) between an open state and a closed state; a tilt lever (80) connected to said free, second end (20?) of the scissor-type lamella guide (20), to the tilt rail (60) and to the conveyor (40); wherein the tilt lever (80) comprises a guide member (85); and wherein said system (1?) is configured for bringing the guide member (85) into contact with a curved guide surface (73), whereby the guide member (85) engages the curved guide surface (73) and is trans

Abstract: The acoustic shutter assembly (1) includes at least one window pane (2, 3) arranged in a frame (4). At least one ventilation duct (7) is arranged in the frame between an outer ventilation opening (8) and an inner ventilation opening (9), extending between a first layer of sound absorbing material arranged at an inside (5) and a second layer of sound absorbing material arranged at an outside. A number of acoustic reflectors (12) in the form of plate material are arranged between the first and second layers of sound absorbing material so that the ventilation duct is separated into a number of respective ventilation channels (13) formed between the acoustic reflectors. Each ventilation channel changes direction at least once between the outer ventilation opening and the inner ventilation opening, thereby at least substantially blocking any linear path from the outer ventilation opening to the inner ventilation opening.

Abstract: The invention relates to a system for covering a surface portion of a building. It includes a covering for covering a building surface portion, and a support frame for attachment to a surface of a building. The covering has a slidable frame with a carriage adapted for longitudinal movement along a guide track. The support frame has a guide track member provided with a guide track for accommodating the carriage. The support frame has a member for sealing an interface between the support frame and the covering frame when the covering is positioned in a position in front of the support frame. The sealing member is a strip seal having an attachment part and a sealing part, including folding lines that extend in the longitudinal direction of the strip seal. The space between the covering and the surface portion to be covered is sealed against humidity and temperature differences.

Abstract: The invention relates to a mechanism for converting a rotary motion originating from a rotary energy generator (1) into a longitudinal motion of a carriage (25) that is adapted for attachment to a covering, such that said rotary motion will result in a longitudinal displacement of the covering, the mechanism comprising one or more spindle sections (2, 3, 4, 5) drivingly connected at a longitudinal end of at least one of said spindle sections via a gear means (7; 9; 22, 23, 24, 27) to said rotary energy generator (1). The invention further relates to a drive system for coverings comprising mechanisms according to the invention. The invention further relates to a covering system for covering a surface portion such as a window, glass door or the like, of a building.

Abstract: The invention relates to a mechanism for converting a rotary motion originating from a rotary energy generator (1) into a longitudinal motion of a carriage (25) that is adapted for attachment to a covering, such that said rotary motion will result in a longitudinal displacement of the covering, the mechanism comprising one or more spindle sections (2, 3, 4, 5) drivingly connected at a longitudinal end of at least one of said spindle sections via a gear means (7; 9; 22, 23, 24, 27) to said rotary energy generator (1). The invention further relates to a drive system for coverings comprising mechanisms according to the invention. The invention further relates to a covering system for covering a surface portion such as a window, glass door or the like, of a building.

Abstract: The present invention relates to a very flexible Venetian blind that easily can be adapted to various sizes of for instance window openings, by a person having limited skill in mounting and adapting Venetian blinds. Also the Venetian blind according to the invention is designed such that individual slats can easily be removed for instance to change the overall size of the Venetian blind or for repair or replacement of individual slats. It is hence also easy according to the invention to change the overall appearance, for instance colour, of the Venetian blinds to meet changing requirements. These and other objects and advantages are attained by the Venetian blind according to the invention. It is understood that although the various elements of the Venetian blind according to the invention here are described and shown as used to form one specific Venetian blind it is also possible to use one or more of the elements (for instance the bottom portions, the lift mechanism etc.