US 2014/0196981 A1Published application

Acoustically absorptive panel

AssigneeMeyer Sound Laboratories, Incorporated

InventorsJohn D. Meyer, Helen Meyer, Marcy Wong, Deborah Lynne O'Grady, Pierre Germain

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Abstract

An acoustically absorptive panel comprises a forward airspace bounded by an acoustically transparent front fabric stretch-mounted on a support frame, and the front face of a porous acoustical absorber, the forward air space, the front fabric and the porous absorber collectively acting as acoustical absorbing chamber, wherein oppositely disposed end panels of the front fabric extend around opposing side frame members of one or more frame structures of the support frame and are connected to a pair of spaced apart retaining struts disposed between the side frame members, the distance between the retaining struts adjustable by rotating one or more threaded tension adjusters thereby stretching or relaxing the front fabric across the support frame to adjust the frequency at which sound absorption will be maximized.

Claims12

Dependent claims

An acoustically absorptive panel comprising:

a porous acoustical absorber having a planar configuration and a front facing,
a support frame for mounting on a planar surface, said support frame including one or more frame structures, each of said one or more frame structures having one or more pairs of parallel, spaced apart, frame side members, each of said frame side members having a forward face and a side face,
an acoustically transparent front fabric stretch-mounted on said support frame in parallel alignment with the front facing of said porous acoustical absorber, said front fabric having one or more pairs of oppositely disposed end panels,
a forward air space bounded by the front facing of said porous acoustical absorber and said front fabric, said forward air space having a depth defined by the distance between the front facing of said porous acoustical absorber and said front fabric, said porous acoustical absorber, said air space and said front fabric collectively forming and acting as a forward acoustical absorbing chamber capable of absorbing a range of sound frequencies,
one or more tension adjusters connected to one pair of frame side members of each of said one or more frame structures, and
a pair of spaced apart retaining struts disposed inwardly from and parallel to one pair of frame side members of each of said one or more frame structures and operatively connected to one of said one or more tension adjusters, so that by manipulation of said tension adjuster the distance between said pair of retaining struts can be adjusted,
each end panel of each of said one or more pairs of end panels of said front fabric extending across the forward face and around the side face of one of said frame side members and secured to one of said retaining struts,
wherein, by manipulating said one or more tension adjusters, said front fabric may be stretched across said one or more frame structures or relaxed.

5 more elements

An acoustically absorptive panel comprising:

a porous acoustical absorber having a planar configuration and a front facing,
a support frame for mounting on a planar surface, said support frame including front and rear frame structures each having a rectilinear configuration, each of said front and rear frame structures having a pair of parallel, spaced apart, frame side members, said frame side members each having a forward face and a side face,
an acoustically transparent front fabric stretch-mounted on said support frame in parallel alignment with the front facing of said porous acoustical absorber, said front fabric having no more than 1.0 dB of attenuation in any one-third octave band from frequencies of 2500 Hz and lower, no more than 2.0 dB of attenuation in the 3150 Hz one-third octave band and above, and a texture capable of retaining a printed graphic image,
a forward air space bounded by the front facing of said porous acoustical absorber and said front fabric, said forward air space having a depth defined by the distance between the front facing of said porous acoustical absorber and said front fabric, said porous acoustical absorber, said air space and said front fabric collectively forming and acting as a forward acoustical absorbing chamber capable of absorbing a range of sound frequencies,
a plurality of lead screws interconnecting each of said pairs of frame side members, each of said lead screws having two opposite sides, each said side having an end and screw threads forming a mirror image of the screw threads on the opposite side, each end of said lead screw rotatably affixed to one of said frame members, and
a pair of tensioning struts disposed inwardly from and parallel to each of said pairs of frame side members, a ball nut firmly affixed to said tensioning strut, one of said plurality of lead screws threadedly received in each one of said ball nuts,
each of said tensioning struts having one or more clamping plates for securing one end of said front fabric to said tensioning strut, each said side of said fabric extending across the forward face and around the side face of one of said frame side members, said side of said fabric secured to one of said tensioning struts,
wherein, by rotating said lead screws in a selected direction, said front fabric may be stretched or relaxed across said frame structures.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/166,645Filed 28 Jan 2014
Priority: 11 May 2011
Published: 17 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

E04B 1/8209
Specifically with respect to sound only: sound absorbing devices
E04B 1/86
Sound-absorbing elements: slab-shaped
E04B 2001/8281
Mounting of acoustical elements on supporting structure, e.g. framework or wall surface: flat elements mounted parallel to a supporting surface…
E04B 2001/8452
Tray or frame type panels or blocks, with or without acoustical filling: with peripheral frame members

Family

Application61/485,094Us provisional application · filed 11 May 2011
Application61/643,155Us provisional application · filed 4 May 2012
Application13/470,167Continuation · filed 11 May 2012
Application14/166,645Continuation
US 2012/0285767 A1Published application
US 8,636,104 B2Related patent
US 9,057,191 B2Related patent
US 2014/0196981 A1This patent

From the US filing history. Foreign family members aren’t listed.

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