The invention relates to an apparatus for natural ventilation of a room, comprising: - a room, - at least one door or one window that comprises an opening frame produced by profiles supporting at least one glass panel, which opening frame is mounted so as to move in a fixed stationary frame formed by profiles surrounding said opening frame, - a ventilation passage which communicates between the outside of the room and the inside of the room in such a way as to allow natural ventilation between the outside and inside of said room, - a noise absorber capable of attenuating sound waves propagating in the ventilation passage, - the opening frame is mounted movably in the stationary frame between a closed position in which a first opening-frame profile engages with a first corresponding stationary-frame profile and an intermediate opening position in which the first opening-frame profile is opened from the first stationary-frame profile by a predetermined distance, - the ventilation passage is delimited by the space separating the first opening-frame profile from the first stationary-frame profile when said opening frame is in the intermediate open position, - the noise absorber is installed directly in the first opening-frame profile and/or in the first stationary-frame profile, - when the opening frame is in the closed position, the first profiles engage in such a way that the ventilation passage is hermetically closed.
F24F 13/18 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane
F24F 13/24 - Means for preventing or suppressing noise
G10K 11/175 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound
2.
MULTI-GLAZED WINDOW INCORPORATING AN ACTIVE NOISE REDUCTION DEVICE
The invention relates to a multi-glazed window formed by a frame produced from profiles supporting at least two glass panes separated by an air layer, said window incorporating an active noise reduction device for a noise coming from a noise source, which device comprises: - at least one loudspeaker which is in the form of a hollow body installed in one of the profiles of said frame and one face of which is constituted at least partially by a vibrating membrane disposed between the two adjacent glass panes in such a way as to vibrate and generate a counter-noise in the air layer, - an actuator associated with the membrane, which actuator is capable of inducing a vibratory movement of said membrane, - at least one control microphone carried by the frame, said microphone being installed in the air layer in order to sense the acoustic signals in said air layer, - a control electronics suitable for controlling the actuator according to the acoustic signals sensed by the control microphone, characterised by the fact that the control microphone is closer to that glass pane which is further from the noise source than the other glass pane.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
E06B 5/20 - Doors, windows, or like closures for special purposesBorder constructions therefor for insulation against noise
3.
UNIT FOR THE NATURAL VENTILATION OF A ROOM, PROVIDED WITH A SOUND ABSORBER
The invention relates to a unit for the natural ventilation of a room, comprising: - a room defined by walls; - at least one door or window comprising a stationary frame surrounding a movable operable panel; - a ventilation passage, in the door or window, that communicates with the outside of the room and with the inside of the room to allow natural ventilation therebetween; - a sound absorber suitable for attenuating the sound waves that propagate in the ventilation passage, said attenuation being achieved via the generation of a counternoise that overlays said sound waves or by absorbing all or part of said sound waves; - wherein the operable panel is movably mounted in the frame between a closed position and an intermediate open position; - the ventilation passage is defined by at least one stationary wall and one movable wall; - in the closed position, the movable and stationary walls seal the ventilation passage and prevent ventilation from taking place between the inside and the outside of the room via the ventilation passage; - and, in the intermediate open position, the movable and stationary walls free the ventilation passage and allow natural ventilation to take place between the inside and the outside of the room via the ventilation passage.
F24F 13/18 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane
F24F 13/24 - Means for preventing or suppressing noise
G10K 11/175 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound
E06B 7/02 - Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windowsArrangement of ventilation roses
E06B 7/10 - Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windowsArrangement of ventilation roses by special construction of the frame members
The invention relates to an apparatus for natural ventilation of a room, said apparatus comprising: - a room delimited by walls, - at least one door or one window installed in one of the room walls, - a ventilation passage which is fitted to the door or the window and which communicates between the outside of the room and the inside of said room in such a way as to allow natural ventilation between the outside and inside of said room, the passage having a first end opening into the room and a second end opening to the outside of said room, - a noise absorber capable of attenuating sound waves propagating in the ventilation passage, the attenuation being realised by the generation of a counter-noise which superimposes on said sound waves or by absorbing all or part of said sound waves, characterised in that: - the door or window is mounted able to move between a closed position and an intermediate open position, - in the closed position, the door or window hermetically closes the first end of the ventilation passage in such a way as to prevent any ventilation between the inside and outside of the room via said ventilation passage, - in the intermediate open position, the door or window frees the first end of the ventilation passage in such a way as to allow natural ventilation between the inside and outside of the room via said ventilation passage.
F24F 13/18 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane
F24F 13/24 - Means for preventing or suppressing noise
G10K 11/175 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound
5.
MULTI-GLAZED WINDOW INCORPORATING A NOISE REDUCTION DEVICE
The invention relates to a multi-glazed window incorporating an active or passive noise reduction device, which device comprises at least one vibrating membrane (7) disposed between two adjacent glass panes (V1, V2) in such a way as to vibrate in the air layer separating said two glass panes, which device comprises a hollow body (1) comprising two longitudinal side walls (2) and one face of which is constituted at least partially by the membrane (7) suspended at said side walls, on either side of same, characterised by the fact that the membrane (7) has two distal edges (71) at each of which is arranged an attachment member (7a, 7'a), which attachment member (7a, 7'a) engages with a complementary attachment member (2a, 2'a) arranged on a respective side wall (2) of the body (1).
E06B 3/67 - Units comprising two or more parallel glass or like panes in spaced relationship, the panes being permanently secured together, e.g. along the edges characterised by additional arrangements or devices for heat or sound insulation
E06B 5/20 - Doors, windows, or like closures for special purposesBorder constructions therefor for insulation against noise
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
Apparatus for lighting, heating, steam generating, cooking,
refrigerating, drying, ventilating, water supply and
sanitary purposes; hair dryers, hair dryers for
professional use.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific, nautical, surveying, photographic,
cinematographic, optical, weighing, measuring, signaling,
checking (supervision), life-saving and teaching apparatus
and instruments; apparatus for recording, transmission or
reproduction of sound or images. Evaluations and assessments in the fields of science and
technology provided by engineers; scientific and technical
research; research and development of new products for
others; technical project studies.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; Apparatus for recording, transmission or reproduction of sound or images. Engineering evaluations and appraisals in the fields of science and technology; Scientific and technical research; Research and development for others; Project studies (Technical -).
The invention relates to a hairdryer (1) which includes a tapering plastic shell (10) between a rear end and a front end, through which the air set in motion and heated by the hairdryer (1) exits, said plastic shell (10) defining at least one air inlet (EA) and one air outlet (SA) and being intended for receiving at least one motor and one fan, the shaft of which is supported by an inner structure (13) attached to the central portion of the shell (10). According to the invention, the plastic shell (10) is shaped such as to receive the air between the air inlet (EA) and the internal structure (13) supporting the fan on an acoustic path that is longer than the acoustic path between the rear end and the inner structure (13) supporting the fan.
The invention relates to a method and device for passive and active sound reduction, including m electroacoustic beams (41) arranged side by side and separated by a gap (D), thus comprising a grid-type acoustic barrier combining a passive and an active noise reduction effect. Each electroacoustic beam (41) includes a plurality of sound reduction elements (70) arranged side by side, each sound reduction element (70) including a microphone (62) and a loudspeaker (61) placed inside a box (60) made of a passive sound-absorbing material or including a passive sound-absorbing material, the microphone (62) and the loudspeaker (61) being connected to an electronic control unit (73) capable of receiving a measurement of the transfer function between the microphone (62) and the loudspeaker (61) and of calculating a negative feedback electronic control filter for each sound reduction element (70) from the transfer function between the microphone (62) and the loudspeaker (61), and enabling, within each sound reduction element (70), the loudspeaker (61) to be electroacoustically looped back to the microphone (62) by amplifying the negative feedback, in order to obtain a real-time sound absorption effect for a predetermined range of frequencies.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
