An approved dynamic construction is used for effectively thermally insulating and sealing of a safing slot between a floor of a building and an exterior wall construction, wherein the exterior wall construction includes a curtain wall configuration defined by an interior wall glass surface including one or more aluminum framing members, wherein the vision glass extends to the finished floor level below. The dynamic, thermally insulating and sealing system includes a first element for receiving the insulating elements and positioned in the zero spandrel area of a glass curtain wall construction including only vision glass to maintain thermally insulating and sealing of the safing slot during exposure to fire and heat as well as movement in order to maintain a complete seal extending across the safing slot.

An acoustic panel comprises: a face sheet comprising a plurality of openings; a back sheet opposite to the face sheet; and an intermediate layer comprising a plurality of cells each comprising a cavity and a plurality of walls extending between the face sheet and the back sheet and surrounding the cavity, the plurality of walls comprising a plurality of drainage slots and a plurality of covers covering the plurality of drainage slots and openable for drainage. A method for making the acoustic panel is also described.

A soundproof member includes one or more soundproof cells each including a frame having a hole portion and a film fixed to the frame. The film vibrates in response to sound, and the film includes one or more cut portions penetrating from one surface to the other surface. As a result, in the soundproof member, a specific frequency has an absorption peak of noise in order to suppress noise of the specific frequency, and a peak spreads,

An approved dynamic construction is used for effectively thermally insulating and sealing of a safing slot between a floor of a building and an exterior wall construction, wherein the exterior wall construction includes a curtain wall configuration defined by an interior wall glass surface including one or more aluminum framing members, wherein the vision glass extends to the finished floor level below. The dynamic, thermally insulating and sealing system includes a first element for receiving the insulating elements and positioned in the zero spandrel area of a glass curtain wall construction including only vision glass to maintain thermally insulating and sealing of the safing slot during exposure to fire and heat as well as movement in order to maintain a complete seal extending across the sating slot.

An acoustic attenuation device having two inserts made of acoustically absorbent material, the two inserts being different from each other and being separated from each other so as to delimit between them a longitudinal slot, each insert including a front surface intended to be oriented towards a space to be acoustically attenuated; and two support elements which are made of substantially acoustically impermeable material and which at least partially delimit an internal cavity in which the two inserts are disposed, each support element including a cover part partially covering the front surface of a respective insert such that the front surfaces of the two inserts are partially exposed, the two cover parts delimiting at least one passage opening which emerges into the internal cavity and which is located at least partially opposite the longitudinal slot so as to clear an access to the longitudinal slot.

Described is an approved dynamic construction for effectively thermally insulating and sealing of a safing slot between a floor of a building and an exterior wall construction wherein the exterior wall construction comprises a curtain wall configuration defined by an interior wall glass surface including one or more aluminum framing members, wherein the vision glass extends to the finished floor level below. The dynamic, thermally insulating and sealing system comprises a first element for receiving the insulating elements and positioned in the zero spandrel area of a glass curtain wall construction including only vision glass to maintain thermally insulating and sealing of the safing slot during exposure to fire and heat as well as movement in order to maintain a complete seal extending across the safing slot.

A box assembly includes a box, a door, an opener, and an insulation material. The box is configured to be installed on a curtain wall. The door encloses an interior space of the box. The opener is configured to open the door. The insulation material is in a compressed state in the interior space when the door is closed. The insulation material is configured to transition to an uncompressed state when the opener opens the door. When the door is opened, the insulation material at least partially extends from the interior space into a sating slot adjacent the curtain wall when the box is in an installed state and the door is opened.

A sound absorber includes a side surface section (a first wall section) in which a plurality of first holes are provided, the side surface section including a first surface and a second surface, a thin film stuck to the first surface of the side surface section, a partition wall (a second wall section) opposed to the second surface and provided in a position separated from the second surface, at least one second hole being provided in the partition wall, and a porous material provided to be opposed to the second wall section in a position separated from the partition wall.

An acoustic-absorber system incorporates a plurality of acoustic-baffle assemblies in cooperation with an acoustic cavity. Each acoustic-baffle assembly incorporates a plurality of nested fluted cups, wherein at least one fluted cup of a first type having at least one orifice at at least one radially-inwardly-extending grooved portion is interleaved with at least one fluted cup of a second type having at least one orifice at at least one radially-outwardly-extending ridged portion. Externally-generated soundwaves entering either from the inside of an innermost fluted cup, or from the outside of an outermost fluted cup, travel through the at least one orifice thereof, and along a circuitous path along the gaps between adjacent cups and through at least one orifice of each of other fluted cups from one gap to another, until finally propagating into the acoustic cavity through at least one orifice of the outermost, or innermost, fluted cup for subsequent additional attenuation by destructive interference from phase cancellation within the cavity.

Described is an approved dynamic construction for effectively thermally insulating and sealing of a safing slot between a floor of a building and an exterior wall construction wherein the exterior wall construction comprises a curtain wall configuration defined by an interior wall glass surface including one or more aluminum framing members, wherein the vision glass extends to the finished floor level below. The dynamic, thermally insulating and sealing system comprises a first element for receiving the insulating elements and positioned in the zero spandrel area of a glass curtain wall construction including only vision glass to maintain thermally insulating and sealing of the safing slot during exposure to fire and heat as well as movement in order to maintain a complete seal extending across the safing slot.