Sound-absorbing fence |
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| 申请号 | US3630310D | 申请日 | 1970-10-06 | 公开(公告)号 | US3630310A | 公开(公告)日 | 1971-12-28 |
| 申请人 | U F CHEMICAL CORP; | 发明人 | FEDERER KURT; | ||||
| 摘要 | Sideline noise generated by airplanes on a runway, and noise generated by vehicles on a road may be contained by a fence essentially consisting of a supporting framework, a solid upright backing panel on the framework, and a layer of sound-absorbing foamed urea-formaldehyde or other plastic foam retained on the face of the plate directed toward the source of the noise by a screen of fabric, plastic, or metal practically transparent to the sound. A roof upwardly closes the space between the backing panel and the screen which is practically completely filled with the plastic foam. | ||||||
| 权利要求 | 1. A sound-absorbing fence comprising, in combination: a. a support; b. a backing member mounted on said support and having an upright face when said support is in the operative position; c. a screen member mounted on said support and substantially coextensive with said face, 1. said screen member being spaced from said face to define a space therebetween; d. sound-absorbing material substantially filling said space; and e. a roof member upwardly closing said space and protecting said material against rain when said fence is arranged outdoors. 2. A fence as set forth in claim 1, a foraminous sound barrier mounted on said support and offset from said screen member in a direction away from said backing member, the openings in said sound barrier being dimensioned to absorb sounds of low frequency while passing high-frequency sound. 3. A fence as set forth in claim 2, wherein said sound barrier includes a plurality of slats arranged substantially in a common plane and spaced from each other in said plane. 4. A fence as set forth in claim 2, wherein said sound barrier includes a perforated plate member. 5. A fence as set forth in claim 1, wherein said screen member is permeable to sound and essentially consists of interwoven metallic, plastic, or textile filaments. 6. A fence as set forth in claim 1, wherein said sound-absorbing material is a foam whose solid component is polyurethane or urea-formaldehyde. 7. A fence as set forth in claim 6, wherein said sound-absorbing material is a unitary body extending into the openings of said screen member and interlocked with the same. 8. A fence as set forth in claim 1, wherein said support includes a plurality of foot members downwardly extending from said backing member and having respective downwardly directed faces defining a common, substantially horizontal plane of support. |
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