Acoustic damping material

Details Acoustic damping material Acoustic damping material

1998-06-05

2000-06-13

Dang, Khanh

Acoustics

Diaphragm and enclosure

With sound-absorbing means

181146, 181199, H05K 500

Patent

active

060737239

ABSTRACT:
An acoustic damping material that includes at least one resilient sheet, wherein each of the sheets have a first side and a second side, and wherein at least two portions of the sides face each other to form a multi-layered structure, is provided. The resilient sheet may be made from any resilient polymer film, such as a polyolefin, and especially polyethylene. Also provided is an acoustic speaker system that has an exceptionally flat frequency response, especially at low audible frequencies. The system includes an enclosure, a speaker mounted to the enclosure, and acoustic damping material (according to this invention) inside the enclosure. An acoustic damping panel, which includes a frame and acoustic damping material fixed to the frame, is also provided.

REFERENCES:
patent: 2941911 (1960-06-01), Kumnick et al.
patent: 3386527 (1968-06-01), Daubert et al.
patent: 3592290 (1971-07-01), Armstrong
patent: 4044855 (1977-08-01), Kobayashi
patent: 4101736 (1978-07-01), Czerwinski
patent: 4439644 (1984-03-01), Bruney, III
patent: 4485275 (1984-11-01), Lahti

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