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US 4,193,474 AGranted
Sound insulating unit and sound barrier
AssigneeToray Industries, Inc.
InventorsKatsuyuki Okubo, Nobuyasu Ueda, Tetsumi Ono
Life of this patent
Estimating the term…
Abstract
Sound insulating units and sound barriers made therefrom include at least one flexible sheet having a surface density of at least 2.0 Kg/cm.sup.2. Such sheets are capable of being connected to form an efficient sound barrier.
Claims14
A sound insulating unit comprising:
- a flexible sheet of a polymeric material and a high density inorganic material, said inorganic material being in the form of a powder or fiber, said sheet having a surface density of at least 2.0 Kg/m.sup.2, and means for connecting and detaching said unit to at least another of said unit, said connecting and detaching means affixed to said unit, wherein said connecting and detaching means being adapted for overlapping of the edges of said units being connected to each other and preventing sound leakage from the overlapping portion.
A sound insulating unit comprising:
- a high density sheet of natural rubber and styrene-butadiene rubber, lead oxide powder embedded within said sheet, fire retardant nylon tarpaulin sheet attached to said high density sheet, and means for attaching said unit on a support, said high density sheet with said nylon tarpaulin having a surface density of at least 2.0 Kg/m.sup.2.
A sound insulating barrier comprising:
- a plurality of overlapping flexible sheets, said sheets of a polymeric material and high density inorganic material in the form of a powder or fiber, said sheets having a surface density of at least 2.0 Kg/m.sup.2, each of said sheets having means for connecting said sheet to at least another of said sheets, wherein each sheet is connected to another sheet by said connecting means so that each of said sheets is partially overlapping an adjacent sheet.
Dependencies are inferred from the claim text.