Title:
Acoustical panel comprising a cellular core having a face thereof coated with fibers bridging the cells
United States Patent 3211253

Inventors:
Rodolfo, Gonzalez
Publication Date:
10/12/1965
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Assignee:
DOUGLAS AIRCRAFT CO INC
Primary Class:
181/292
Other Classes:
427/426, 428/116
International Classes:
E04B1/86; E04C2/36; E04B1/74; E04B1/84; E04C2/34
US Patent References:
2941900Method and apparatus for producing insulating walls
3025197Glass fiber fissured acoustical board
3087574High acoustic transmission loss panel and the like
3092203Sound absorbing fibrous board with plastic film covering
3113634Sound absorbing panel for lining a duct
Foreign References:
AU206535B
FR1054526A
FR64827A
GB723621A