3821999 is referenced by 81 patents and cites 4 patents.

An acoustic liner consisting of a perforated honeycomb sandwich panel wherein the axes of the honeycomb cells are tilted relative to the outer surface for more effective absorption of high amplitude sound and shock waves over a relatively narrow band of the frequency spectrum. An application is in the prevention of the harmonic content of the shock pattern from changing to lower frequencies.

Title
Acoustic liner
Application Number
05/286,457
Publication Number
3821999
Application Date
September 5, 1972
Publication Date
July 2, 1974
Inventor
Schindler Guenter M
Guess Arnold W
Agent
Royer Donald L
Jason Walter J
Richardson Robert O
Assignee
McDonnell Douglas Corporation
IPC
F01n 01/10
E04b 01/99
G10k 11/04
G10K 11/00
G10K 11/172
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