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US3757889A Expired / Lapsed US ⏱️ 0.0 years remaining

Sound reproduction system

Assignee: Acoustic Fiber Sound Systems Inc
•
Filing: 1972-01-31
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Granted: 1973-09-11
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Expires: 1992-01-31
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Abstract

Abstract Three tubular members of corrugated board, each being rectangular in transverse cross-section and including four panels having corrugations extending in directions perpendicular to the longitudinal axis of the tubular member, are nested one within the other with the longitudinal axes thereof being mutually perpendicular to form a closed six-walled housing, each wall comprising back-to-back panels of two different tubular members secured together with the corrugations thereof disposed perpendicular to each other, the outermost tubular member extending outwardly beyond the inner tubular members to form front and rear recesses respectively receiving a baffle board and a rear cover panel therein, and a loudspeaker accommodated in a complementary opening in the front wall and having a mounting flange secured to the inner surface of the baffle board; the rear cover panel and the other walls of the housing are covered with a decorative facing, either secured directly to the walls or separated therefrom by a layer of foam or cushioning material. A strip of gasketing material, foamed or otherwise, may also be provided between the baffle board and the front wall of the housing.

Inventors

  • 👤 S Everitt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 00:19
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/021

Claims Analysis

Total Claims: 26
Claim 1
Independent Claim 153 words
A loudspeaker enclosure comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugation of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, whereby the perpendicular corrugations in each of said walls cooperate to facilitate the suppression by said wall of undesirable sound waves emitted from said housing.
Claim 2
Dependent Claim 153 words
A loudspeaker enclosure comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugation of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, whereby the perpendicular corrugations in each of said walls cooperate to facilitate the suppression by said wall of undesirable sound waves emitted from said housing.
Claim 3
Dependent Claim 29 words
The loudspeaker enclosure set forth in claim 1, and further including a rear cover panel disposed in said rear recess substantially congruent with said rear wall and secured thereto.
Claim 4
Dependent Claim 135 words
A loudspeaker enclosure comprising a plurality of walls interconnected to form a closed housing, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each of said layers in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, one of said walls having an opening therein to facilitate the emission of sound waves therefrom, and a loudspeaker-mounting board disposed outwardly of said one wall and secured to the outer surface thereof and having an opening therein aligned with the opening in said one wall for mounting an associated loudspeaker thereon, whereby the perpendicular corrugations of adjacent layers of corrugations cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 5
Dependent Claim 135 words
A loudspeaker enclosure comprising a plurality of walls interconnected to form a closed housing, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each of said layers in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, one of said walls having an opening therein to facilitate the emission of sound waves therefrom, and a loudspeaker-mounting board disposed outwardly of said one wall and secured to the outer surface thereof and having an opening therein aligned with the opening in said one wall for mounting an associated loudspeaker thereon, whereby the perpendicular corrugations of adjacent layers of corrugations cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 6
Dependent Claim 16 words
The loudspeaker enclosure set forth in claim 3, wherein said loudspeaker-mounting board is made of plywOod.
Claim 7
Dependent Claim 23 words
The loudspeaker enclosure set forth in claim 3, wherein said loudspeaker-mounting board is adhesively secured to the outer surface of said one wall.
Claim 8
Dependent Claim 31 words
The loudspeaker enclosure set forth in claim 5, and further including a sound-transmitting fabric screen secured to said loudspeaker-mounting board and covering the outer surface thereof for concealing the opening therein.
Claim 9
Dependent Claim 202 words
A loudspeaker enclosure comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall for mounting an associated loudspeaker thereon, and a rear cover panel disposed in said rear recess and secured to said rear wall, whereby the perpendicular corrugations in each of said walls cooperate to facilitate the suppression by said wall of undesirable sound waves emitted from said housing.
Claim 10
Dependent Claim 202 words
A loudspeaker enclosure comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall for mounting an associated loudspeaker thereon, and a rear cover panel disposed in said rear recess and secured to said rear wall, whereby the perpendicular corrugations in each of said walls cooperate to facilitate the suppression by said wall of undesirable sound waves emitted from said housing.
Claim 11
Dependent Claim 31 words
The loudspeaker enclosure set forth in claim 7, and further including a sound-transmitting fabric screen secured to said loudspeaker-mounting board and covering the outer surface thereof for concealing the opening therein.
Claim 12
Dependent Claim 245 words
A loudspeaker enclosure comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall for mounting an associated loudspeaker thereon, a rear cover panel disposed in said rear recess and secured to said rear wall, a sound-transmitting fabric screen secured to said loudspeaker-mounting board and covering the outer surface thereof for concealing the opening therein, and a decorative facing secured to said top and bottom and side walls and said rear cover panel and covering the outer surfaces thereof, whereby the perpendicular corrugations in each of said walls cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 13
Dependent Claim 245 words
A loudspeaker enclosure comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall for mounting an associated loudspeaker thereon, a rear cover panel disposed in said rear recess and secured to said rear wall, a sound-transmitting fabric screen secured to said loudspeaker-mounting board and covering the outer surface thereof for concealing the opening therein, and a decorative facing secured to said top and bottom and side walls and said rear cover panel and covering the outer surfaces thereof, whereby the perpendicular corrugations in each of said walls cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 14
Dependent Claim 16 words
The loudspeaker enclosure set forth in claim 9, wherein said decorative facing is formed of vinyl.
Claim 15
Dependent Claim 29 words
The loudspeaker enclosure set forth in claim 9, and further including a sheet of foamed material disposed between said housing and said decorative facing and adhesively secured to each.
Claim 16
Dependent Claim 70 words
The loudspeaker enclosure set forth in claim 9, and further including a sheet of foamed material disposed between said housing and said decorative facing and adhesively secured to each, and a strip of foamed material disposed in said front recess between said loudspeaker-mounting board and said front wall, said strip of foam material extending along the margins of said front wall and beiNg adhesively secured to the front surface thereof.
Claim 17
Dependent Claim 268 words
A sound reproduction system comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall, and a loudspeaker including a cone-shaped diaphragm and having a mounting flange extending radially outwardly therefrom at the open end thereof and secured to the rear surface of said loudspeaker mounting board, said loudspeaker being disposed in use within said housing in axial alignment with said openings for transmitting therethrough to the exterior of said housing sound waves generated at the front surface of the diaphragm and for transmitting into said housing sound waves generated at the rear surface of said housing, whereby the perpendicular corrugations of the back-to-back panels of each of said housing walls cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 18
Dependent Claim 268 words
A sound reproduction system comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall, and a loudspeaker including a cone-shaped diaphragm and having a mounting flange extending radially outwardly therefrom at the open end thereof and secured to the rear surface of said loudspeaker mounting board, said loudspeaker being disposed in use within said housing in axial alignment with said openings for transmitting therethrough to the exterior of said housing sound waves generated at the front surface of the diaphragm and for transmitting into said housing sound waves generated at the rear surface of said housing, whereby the perpendicular corrugations of the back-to-back panels of each of said housing walls cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 19
Dependent Claim 37 words
The sound reproduction system set forth in claim 13, wherein said housing is further provided with a reflex port spaced from said opening for permitting transmission of sound waves therethrough from within said housing at predetermined frequencies.
Claim 20
Dependent Claim 67 words
The sound reproduction system set forth in claim 13, and further including a connector having a mounting flange extending laterally outwardly therefrom disposed in use between the back-to-back panels of another of said housing walls and secured thereto for mounting said connector on said housing, said connector being connected to said loudspeaker and adapted for connection to an associated source of signal power for energizing said loudspeaker.
Claim 21
Dependent Claim 45 words
The sound reproduction system set forth in claim 13, wherein said loudspeaker-mounting board has an annular recess in the inner surface thereof disposed in surrounding relationship with said opening therein, said loudspeaker-mounting flange being disposed in use in said annular recess in said loudspeaker-mounting board.
Claim 22
Dependent Claim 326 words
A sound reproduction system comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall, a loudspeaker including a cone-shaped diaphragm and having a mounting flange extending radially outwardly therefrom at the open end thereof and secured to the rear surface of said loudspeaker-mounting board, said loudspeaker being disposed in use within said housing in axial alignment with said openings for transmitting therethrough to the exterior of Said housing sound waves generated at the front surface of the diaphragm and for transmitting into said housing sound waves generated at at the rear surface of said housing, a rear cover panel disposed in said rear recess and secured to said rear wall, a sound-transmitting fabric screen secured to said loudspeaker-mounting board and covering the outer surface thereof for concealing the opening therein, and a decorative facing secured to said top and bottom and side walls and said rear cover panel and covering the outer surfaces thereof, whereby the perpendicular corrugations of the back-to-back panels of each of said housing walls cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 23
Dependent Claim 326 words
A sound reproduction system comprising a closed housing including a top wall and a bottom wall and a front wall and a rear wall and a pair of opposed side walls, said front wall having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each said layer in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, at least one layer of corrugation of said top and bottom and side walls of said housing extending forwardly and rearwardly beyond the front and rear walls thereof and cooperating therewith to form a front recess and a rear recess, a loudspeaker-mounting board disposed in said front recess and secured to said front wall and having an opening therein aligned with the opening in said front wall, a loudspeaker including a cone-shaped diaphragm and having a mounting flange extending radially outwardly therefrom at the open end thereof and secured to the rear surface of said loudspeaker-mounting board, said loudspeaker being disposed in use within said housing in axial alignment with said openings for transmitting therethrough to the exterior of Said housing sound waves generated at the front surface of the diaphragm and for transmitting into said housing sound waves generated at at the rear surface of said housing, a rear cover panel disposed in said rear recess and secured to said rear wall, a sound-transmitting fabric screen secured to said loudspeaker-mounting board and covering the outer surface thereof for concealing the opening therein, and a decorative facing secured to said top and bottom and side walls and said rear cover panel and covering the outer surfaces thereof, whereby the perpendicular corrugations of the back-to-back panels of each of said housing walls cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 24
Dependent Claim 191 words
A sound reproduction system comprising a plurality of walls interconnected to form a closed housing, said housing having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each of said layers in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, a loudspeaker-mounting board secured to the outer surface of said housing adjacent to said opening, and a loudspeaker having a mounting flange extending radially outwardly therefrom adjacent to the open end thereof and secured to said loudspeaker-mounting board for mounting said loudspeaker in said housing, said loudspeaker having a cone-shaped diaphragm disposed in axial alignment with said opening for transmitting therethrough to the exterior of said housing sound waves generated at the front surface of said diaphragm and for transmitting into said housing sound waves generated at the rear surface of said diaphragm, whereby the perpendicular corrugations of adjacent layers of corrugations cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 25
Dependent Claim 191 words
A sound reproduction system comprising a plurality of walls interconnected to form a closed housing, said housing having an opening therein to facilitate the emission of sound waves therefrom, each of said walls being formed of corrugated material including at least two layers of corrugations, the corrugations of each of said layers in a wall extending in a direction substantially perpendicular to the direction of the corrugations of adjacent layers in said wall, a loudspeaker-mounting board secured to the outer surface of said housing adjacent to said opening, and a loudspeaker having a mounting flange extending radially outwardly therefrom adjacent to the open end thereof and secured to said loudspeaker-mounting board for mounting said loudspeaker in said housing, said loudspeaker having a cone-shaped diaphragm disposed in axial alignment with said opening for transmitting therethrough to the exterior of said housing sound waves generated at the front surface of said diaphragm and for transmitting into said housing sound waves generated at the rear surface of said diaphragm, whereby the perpendicular corrugations of adjacent layers of corrugations cooperate to facilitate the suppression by said walls of undesirable sound waves emitted from said housing.
Claim 26
Dependent Claim 34 words
The sound reproduction system set forth in claim 18, wherein said loudspeaker-mounting flange is disposed in use between said loudspeaker-mounting board and said outer surface of said housing and is fixedly secured to each.

References Cited (Backward Citations)

US2041777A Cited
US2992695A Cited
US3520559A Cited
US3592290A Cited
US3635307A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-10 1977-03-12 1977-09-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-10 1981-03-12 1981-09-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-10 1985-03-12 1985-09-11 $7700.00 Window Closed / Lapsed

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