SOUNDPROOFING PANEL CONSTRUCTION

申请公布号：

US3881569(A)

申请号：

US19730394833

申请日期：

1973.09.06

申请公布日期：

1975.05.06

申请人：

EVANS, JR., WILLIAM O.

发明人：

EVANS, JR., WILLIAM O.

分类号：

E04B1/82;E04B1/84;G10K11/16;(IPC1-7):E04B1/86

主分类号：

E04B1/82

摘要：

A soundproofing panel particularly suited for use in a sound control cabinet for machinery. In its preferred form, the panel comprises in respective laminations a relatively rigid, sound-admitting, perforate wall formed of a matrix of large apertures for mechanical strength and a matrix of small apertures for blocking penetration by small or relatively pointed objects, an acoustically transparent membrane for excluding foreign material, a void layer of sound-absorbing material, and an acoustically limp, imperforate wall of high mass-per-unit area for preventing transmission of residual sound through the imperforate wall from the sound-absorbing material.